Your files never
leave your device

Popular tools

Usually paid elsewhere

• Restore Old Photos Old family photos are exactly the pictures people least... Bookmark
• Add Subtitles to Video Captions are the single paid feature people most often b... Bookmark
• Compress PDF Shrink a large PDF — especially scanned or image-heavy d... Bookmark
• Remove / Replace Background Cut the subject out with on-device AI, then keep a trans... Bookmark
• Compress Video Make a video small enough to send, without handing it to... Bookmark
• Colorize Black and White Photo Bring colour to a black-and-white or faded sepia photo w... Bookmark
• Unlock PDF Open a password-protected PDF by entering its current pa... Bookmark
• Audio to Text Turn recordings into text on your device. First load dow... Bookmark

Image Tools

Free, private, browser-based image tools: compress, resize, convert, OCR, remove background, GIF maker and more. Your files never leave your device.

59 View all →

• Compress Image to an Exact Size Shrink any JPG, PNG or WebP image down to an exact file... Bookmark
• Convert HEIC to JPG Convert Apple HEIC/HEIF photos from your iPhone into uni... Bookmark
• Resize Image to Exact Dimensions Resize any JPG, PNG or WebP image to the exact pixel dim... Bookmark
• Convert PNG to JPG Convert PNG images to smaller, universally supported JPG... Bookmark
• Convert JPG to PNG Convert JPG/JPEG photos into lossless PNG images — great... Bookmark
• Convert WebP to JPG Convert modern WebP images into universally supported JP... Bookmark
• Convert JPG to WebP Convert JPG/JPEG images into the modern WebP format for... Bookmark
• Convert PNG to WebP Convert PNG images into the modern WebP format to dramat... Bookmark
• Rotate Image Rotate any JPG, PNG or WebP image clockwise, counter-clo... Bookmark
• Flip Image Flip any image horizontally (mirror) or vertically. Perf... Bookmark
• Convert WebP to PNG Convert WebP images to lossless PNG files with full tran... Bookmark
• Convert GIF to PNG Convert a GIF image into a high-quality PNG (the first f... Bookmark
• Convert Image to Grayscale Convert any JPG, PNG or WebP photo to black and white (g... Bookmark
• Add Watermark to Image Protect your photos by adding a custom text watermark, w... Bookmark
• Blemish & Spot Remover Paint over blemishes, spots, dust specks or small distra... Bookmark
• Crop Image Crop any image by dragging a selection box over the part... Bookmark
• Favicon Generator Generate a complete favicon set — a multi-size favicon.i... Bookmark
• Convert AVIF to JPG Convert modern AVIF images into universally supported JP... Bookmark
• Convert AVIF to PNG Convert AVIF images to lossless PNG files with transpare... Bookmark
• Convert BMP to PNG Convert old BMP bitmap images into compact, widely-suppo... Bookmark
• Circle Crop Image Crop any image into a perfect circle with a transparent... Bookmark
• Image Color Picker Upload an image and hover or click anywhere to read the... Bookmark
• Convert Image to Base64 Turn an image into a Base64 data URI you can paste direc... Bookmark
• Remove EXIF Metadata Remove hidden EXIF metadata — including GPS location, ca... Bookmark
• Adjust Image Brightness & Contrast Adjust the brightness, contrast and saturation of any JP... Bookmark
• Social Media Image Resizer Resize any image to the exact pixel dimensions required... Bookmark
• Passport Photo Maker Crop your photo to standard passport and visa sizes — US... Bookmark
• Convert SVG to PNG Convert SVG vector graphics into PNG raster images at th... Bookmark
• Convert PNG to ICO Convert a PNG image into a Windows .ico file containing... Bookmark
• Blur Region of Image Select any area of a photo and blur or pixelate it — per... Bookmark
• GIF Maker from Images Turn a sequence of JPG or PNG images into an animated GI... Bookmark
• Split Image into Grid Split a single image into a grid of equal tiles — perfec... Bookmark
• Extract Text from Image (OCR) Extract readable text from photos, scanned documents and... Bookmark
• Colorize Black and White Photo Bring colour to a black-and-white or faded sepia photo w... Bookmark
• Restore Old Photos Old family photos are exactly the pictures people least... Bookmark
• Online Photo Editor The editing people usually open a paid app or an upload-... Bookmark
• Remove / Replace Background Cut the subject out with on-device AI, then keep a trans... Bookmark
• Color Palette Extractor Pull a colour palette out of any image as HEX codes you... Bookmark
• HEIC to PNG Convert HEIC/HEIF photos from your iPhone to widely-supp... Bookmark
• Meme Generator Turn any picture into a meme with bold, classic top and... Bookmark
• Round Image Corners Round off the corners of any image with an adjustable ra... Bookmark
• Add Border to Image Add a clean, solid-colour border or frame around any ima... Bookmark
• Photo Filters Give your photos a new look with one-click filter preset... Bookmark
• EXIF Viewer See the metadata stored inside a photo — the camera and... Bookmark
• TIFF Converter Convert TIFF/TIF images — which many browsers and apps c... Bookmark
• AI Image Upscaler Enhance resolution with Standard / UltraSharp / Remacri... Bookmark
• Clean / Sharpen Image Make soft or blurry photos clearer in your browser. Pick... Bookmark
• Add Text to Image Type a caption or label onto any image. Adjust position,... Bookmark
• Overlay Images Place a logo, stamp or second photo on top of a base ima... Bookmark
• Photo Collage Maker Drop several photos and build a clean grid collage. Pick... Bookmark
• Pixelate Image Turn a photo into chunky pixels. Great for abstract look... Bookmark
• Invert Image Colors Flip colours to a negative look. Dial intensity from sub... Bookmark
• Image Steganography Embed a secret message in a PNG’s least-significant bits... Bookmark
• Image Diff Drop two versions of a design or screenshot and see exac... Bookmark
• Color Blindness Simulator Check UI screenshots and graphics for colour-vision acce... Bookmark
• Image to ASCII Art Convert photos into monospace ASCII (or block) art you c... Bookmark
• String Art Generator Turn a portrait into thread art you can make by hand: on... Bookmark
• Scan Enhancer Turn a dim phone photo of a page into a crisp B&W or con... Bookmark
• Remove Object from Photo Paint a mask over distractions and inpaint from surround... Bookmark

Video Tools

Free, private, browser-based video tools: compress to an exact size, convert MP4/WebM/MOV, trim, crop, resize for social, extract audio and frames, make GIFs. Your videos never leave your device.

42 View all →

• Online Video Editor The features people pay a monthly subscription for — a r... Bookmark
• Add Subtitles to Video Captions are the single paid feature people most often b... Bookmark
• Remove Silence from Video Cutting the dead air out of a talking-head recording by... Bookmark
• Add Text to Video Add text to a video the way a design tool works rather t... Bookmark
• Add Music to Video Adding music to a talking video usually means riding the... Bookmark
• Stabilize Video Handheld footage wobbles, and a wobble is the first thin... Bookmark
• Green Screen Video Replace a green or blue screen with anything: an image,... Bookmark
• Video Colour Grading Apply a colour look to a video — cinematic, vivid, golde... Bookmark
• Remove Background Noise from Video Bad sound ruins good video faster than bad picture. This... Bookmark
• Audiogram Maker Social feeds do not play audio files, so podcasts get sh... Bookmark
• Blur Part of a Video Hide what should not be seen before a video goes out: a... Bookmark
• Reverse Video Three classic effects: reverse, which plays a clip backw... Bookmark
• Compress Video Make a video small enough to send, without handing it to... Bookmark
• Convert Video Change a video into a format the thing you are using wil... Bookmark
• Trim Video Keep the part of a video you actually want. Drag the two... Bookmark
• Resize Video Get a video into the frame a platform actually wants, ra... Bookmark
• Video to MP3 Take the sound out of a video and keep it on its own — a... Bookmark
• Merge Videos Put several clips end to end into one file. The hard par... Bookmark
• Watermark Video Put your logo on a video before you publish it. Choose a... Bookmark
• Video Frame Grabber Take pictures out of a video. Grab a single frame for a... Bookmark
• Rotate Video Fix a video that was filmed sideways. Rotate it by 90, 1... Bookmark
• Video to GIF Make a GIF that actually looks like the video it came fr... Bookmark
• GIF to MP4 GIF is a terrible way to store video and a wonderful way... Bookmark
• Split a Video into Parts Some limits are not about file size but length: WhatsApp... Bookmark
• Loop a Video A looping clip is the backbone of a background video, a... Bookmark
• Side by Side Video Two clips playing at once is how a comparison actually r... Bookmark
• Subtitle Converter Three things go wrong with subtitle files, and this fixe... Bookmark
• Convert MOV to MP4 MOV is what a QuickTime recording, a Final Cut export an... Bookmark
• Convert MKV to MP4 MKV is an open container that will hold almost anything,... Bookmark
• Convert AVI to MP4 AVI dates from 1992 and it shows: no support for modern... Bookmark
• Convert WebM to MP4 WebM is the format the web hands you — a saved video fro... Bookmark
• Convert WMV to MP4 WMV is Microsoft's old Windows Media format, and outside... Bookmark
• Convert FLV to MP4 FLV was the format of Flash video, and Flash has been go... Bookmark
• Convert MP4 to WebM WebM exists for the open web: royalty-free codecs, nativ... Bookmark
• Convert MP4 to MOV MOV is QuickTime's container and the one Apple software... Bookmark
• Convert MP4 to MP3 Most of the time the picture is the part you do not want... Bookmark
• Convert MOV to MP3 A MOV is usually something you filmed on an iPhone or re... Bookmark
• Convert MP4 to WAV WAV is what audio software asks for. Editing suites, spe... Bookmark
• Crop a Video Crop is the one edit you cannot do with a setting on you... Bookmark
• Change Video Speed Speeding up and slowing down are two different jobs with... Bookmark
• Mute a Video Removing the sound takes seconds, because there is nothi... Bookmark
• Video to Images Pull the individual pictures out of a video: every frame... Bookmark

Audio Tools

Free, private, browser-based audio tools: convert MP3/WAV/M4A/FLAC, compress to a size limit, trim, join, normalise loudness, remove noise and silence, transcribe. Your recordings never leave your device.

29 View all →

• Voice Recorder Record audio from your microphone right in your browser... Bookmark
• Text to Speech Have any text read aloud using the speech voices built i... Bookmark
• Speech to Text Dictate into text with your browser’s speech recognition... Bookmark
• Audio to Text Turn recordings into text on your device. First load dow... Bookmark
• Audio Cutter Keep the part that matters and throw the rest away: the... Bookmark
• Convert Audio Every format is a trade between size, quality and what w... Bookmark
• WAV to MP3 WAV files are uncompressed, which is why a ten-minute re... Bookmark
• M4A to MP3 M4A is what an iPhone voice memo, a QuickTime recording... Bookmark
• MP3 to WAV WAV is what editing suites, speech-recognition tools, ga... Bookmark
• FLAC to MP3 FLAC keeps every bit of the original recording, which is... Bookmark
• Compress Audio Two ways to make an audio file smaller, and the second i... Bookmark
• Merge Audio Files Joining audio sounds trivial until the files disagree: o... Bookmark
• Normalize Audio Volume There are two different jobs here. Turning the volume up... Bookmark
• Change Audio Speed Speeding a recording up is how an hour-long lecture or i... Bookmark
• Fade Audio In & Out A recording that starts at full volume and stops dead so... Bookmark
• Remove Silence from Audio Two different problems share one tool. Trimming the ends... Bookmark
• Remove Background Noise from Audio Most bad audio is not badly spoken, it is badly surround... Bookmark
• Vocal Remover In most stereo mixes the lead vocal is panned dead centr... Bookmark
• Reverse Audio Reversing audio is the oldest trick in recorded music an... Bookmark
• Audio Waveform Generator A waveform is the picture of a sound that everyone recog... Bookmark
• Convert OGG to MP3 OGG is the open-format option, which is why it turns up... Bookmark
• Convert AAC to MP3 A bare .aac file is the awkward one. The codec itself is... Bookmark
• Convert OPUS to MP3 If you have exported a WhatsApp chat and found a pile of... Bookmark
• Convert WMA to MP3 WMA is the sound of a music library ripped in Windows Me... Bookmark
• Convert M4A to WAV Audio software asks for WAV because there is nothing to... Bookmark
• Convert MP3 to M4A M4A is AAC in an Apple-friendly container, and at any gi... Bookmark
• Convert WAV to FLAC FLAC is the right way to store a recording you want to k... Bookmark
• Convert FLAC to WAV Both formats hold exactly the same audio — FLAC simply s... Bookmark
• Convert WAV to M4A A WAV is about 10 MB a minute, which is fine while you a... Bookmark

PDF Tools

Free, private, browser-based PDF tools: merge, split, reorder, protect with password, convert to JPG and more. Your files never leave your device.

45 View all →

• Convert Images to PDF Turn one or more JPG or PNG images into a single PDF doc... Bookmark
• Merge PDF Files Combine several PDF files into a single document, in the... Bookmark
• Split PDF Split a PDF into individual single-page PDF files that y... Bookmark
• Rotate PDF Rotate all pages of a PDF clockwise, upside down or coun... Bookmark
• Convert PDF to JPG Turn every page of a PDF into a high-quality JPG image a... Bookmark
• Compress PDF Shrink a large PDF — especially scanned or image-heavy d... Bookmark
• Delete PDF Pages Remove unwanted pages from a PDF by listing the page num... Bookmark
• Extract PDF Pages Create a new PDF containing only the pages you choose. E... Bookmark
• Convert PDF to PNG Turn every page of a PDF into a crisp, lossless PNG imag... Bookmark
• Reorder PDF Pages Change the order of pages in a PDF by dragging them into... Bookmark
• Protect PDF with Password Set a password on any PDF so it cannot be opened without... Bookmark
• Add Page Numbers to PDF Add page numbers to the bottom or top of every page in a... Bookmark
• Convert JPG to PDF Convert one or more JPG/JPEG images into a single PDF, i... Bookmark
• Convert PNG to PDF Convert one or more PNG images into a single PDF, in the... Bookmark
• Convert PDF to One JPG Combine every page of a PDF into one continuous JPG imag... Bookmark
• Add Watermark to PDF Add a diagonal text watermark (like "CONFIDENTIAL" or "D... Bookmark
• Clean Up a Scanned PDF Tidy up a scanned document by brushing over specks, stai... Bookmark
• PDF to PowerPoint Turn a PDF into an editable PowerPoint deck. Whiztools r... Bookmark
• Office to PDF Convert Microsoft Office documents into PDF without inst... Bookmark
• PDF to Word Turn a PDF into an editable Microsoft Word document. Whi... Bookmark
• PDF to Excel Extract tables from a PDF into an editable Excel spreads... Bookmark
• Batch PDF Processor Process a whole batch of PDFs in one go. Choose an actio... Bookmark
• PDF to PDF/A Convert your PDF into PDF/A, the ISO-standardised format... Bookmark
• Bates Numbering Add professional Bates numbers to your PDFs — the sequen... Bookmark
• Compare PDF Compare two versions of a PDF and instantly see what cha... Bookmark
• PDF Editor A real PDF editor that runs entirely on your device — no... Bookmark
• Sign PDF Add your handwritten signature to a PDF — draw it, pick... Bookmark
• PDF to Text Pull the selectable text out of any PDF and copy it or d... Bookmark
• Extract Images from PDF Find and save the images embedded in a PDF as individual... Bookmark
• Crop PDF Trim a percentage off each edge of every page in a PDF —... Bookmark
• Resize PDF Resize a PDF so every page fits a standard size — A4, Le... Bookmark
• Pages Per Sheet (N-up) Place several PDF pages onto each sheet — 2, 4, 6 or 9 u... Bookmark
• PDF Metadata Editor View and change a PDF's document properties — title, aut... Bookmark
• Unlock PDF Open a password-protected PDF by entering its current pa... Bookmark
• PDF Header & Footer Add a header, footer, or both to every page of your PDF,... Bookmark
• Insert Blank Pages into PDF Insert blank pages at the start, end, or after any page.... Bookmark
• Reverse PDF Pages Flip a PDF so the last page becomes first. Useful for sc... Bookmark
• PDF Redactor Cover sensitive regions with burned-in black rectangles.... Bookmark
• Make PDF Searchable OCRs each page on-device and burns in an invisible text... Bookmark
• Fill PDF Form Open a fillable AcroForm PDF, complete the fields, and d... Bookmark
• Add Text to PDF Place labels, corrections or signatures-as-text on a PDF... Bookmark
• Find and Replace Text in a PDF Rename a company across a forty-page agreement, correct... Bookmark
• Redact a PDF Properly A black rectangle drawn over a name is not redaction. Th... Bookmark
• Convert PDF to Markdown Adobe exports to Word, Excel, PowerPoint, HTML and plain... Bookmark
• PDF Form Data to a Spreadsheet You sent out a form and twenty completed copies came bac... Bookmark

Data Tools

Free, private data tools that run in your browser: analyse CSV and Excel files with SQL, pivot tables and charts, compare and merge files, remove duplicates, split and convert. Nothing is uploaded.

12 View all →

• CSV Viewer Paste CSV text or upload a .csv file to see it rendered... Bookmark
• Chart Generator from CSV Paste CSV where the first column holds labels and the ot... Bookmark
• Data Analysis Tool The work people open a spreadsheet, a Python notebook or... Bookmark
• Query CSV with SQL Every file you open becomes a table you can query by nam... Bookmark
• Pivot Table Online Turn a long export into the summary you actually need: r... Bookmark
• Compare CSV Files Find out what actually changed between two versions of a... Bookmark
• Merge CSV Files Stack a month of daily exports, a year of monthly report... Bookmark
• Excel to CSV Get the data out of a workbook as plain CSV that any dat... Bookmark
• CSV to Excel Opening a CSV directly in Excel is where leading zeros v... Bookmark
• Parquet Viewer & Converter Parquet is how data engineers store tables, and it is un... Bookmark
• Remove Duplicates from CSV Clean a mailing list, a contact export or a merged repor... Bookmark
• Split CSV File Break a file that is too big for an import form, an emai... Bookmark

Utility Tools

Free, private, browser-based utility tools: QR codes, password generator, word counter, hash generator and more. Everything runs on your device.

72 View all →

• QR Code Generator Generate a QR code for any URL, text, phone number or Wi... Bookmark
• Password Generator Create strong, random passwords with your choice of leng... Bookmark
• Word & Character Counter Paste or type your text to instantly count words, charac... Bookmark
• Case Converter Instantly convert your text between UPPERCASE, lowercase... Bookmark
• UUID Generator Generate cryptographically random version-4 UUIDs (also... Bookmark
• Lorem Ipsum Generator Generate classic Lorem Ipsum placeholder text for mockup... Bookmark
• Color Converter Pick a colour or type a HEX, RGB or HSL value and instan... Bookmark
• Barcode Generator Type a number or some text, pick a type, and take away a... Bookmark
• Bulk Barcode Generator One barcode at a time is fine until you have four hundre... Bookmark
• Code 128 Generator Code 128 is the one to reach for when the thing you are... Bookmark
• EAN-13 Barcode Generator EAN-13 is the barcode on almost every retail product sol... Bookmark
• UPC Barcode Generator UPC-A is the twelve-digit barcode on retail products in... Bookmark
• Code 39 Barcode Generator Code 39 — also written Code 3 of 9 — is the older alphan... Bookmark
• EAN-8 Barcode Generator EAN-8 exists for one reason: some packaging is simply to... Bookmark
• ITF-14 Barcode Generator ITF-14 is the barcode printed on the outer case — the ca... Bookmark
• Barcode Check Digit Calculator The last digit of an EAN-13, EAN-8, UPC-A or ITF-14 is n... Bookmark
• Unit Converter Convert between common units of length (m, km, mi, ft),... Bookmark
• Invoice Generator A full invoicing app that runs entirely in your browser... Bookmark
• File Encryptor Encrypt any file with a password using strong AES-256-GC... Bookmark
• Screen Recorder Record your screen (and optionally microphone audio) rig... Bookmark
• Percentage Calculator Calculate percentages three ways — a percentage of a num... Bookmark
• BMI Calculator Enter your height and weight in metric (cm, kg) or imper... Bookmark
• Loan Calculator Enter a loan amount, annual interest rate and term to se... Bookmark
• Age Calculator Enter a date of birth to get an exact age in years, mont... Bookmark
• Stopwatch & Countdown Timer Use a precise stopwatch or set a countdown timer with an... Bookmark
• QR Code Scanner Upload or paste an image of a QR code and instantly read... Bookmark
• Timezone Converter Pick a time and convert it between cities and timezones.... Bookmark
• Tip Calculator Enter the bill, tip percent and headcount to see tip, to... Bookmark
• Compound Interest Calculator See how savings grow with compound interest. Adjust prin... Bookmark
• Discount Calculator Figure out the discounted price, how much you save, or w... Bookmark
• Sales Tax Calculator Add tax to a net amount, or work backwards from a tax-in... Bookmark
• Date Difference Calculator Pick two dates and see the span in days, weeks, months a... Bookmark
• Words to Time Calculator Turn a word count into minutes. Paste an article, a post... Bookmark
• Find and Replace Search and replace in a block of text. Case-sensitive op... Bookmark
• Remove Duplicate Lines Paste a list and strip duplicate lines while keeping fir... Bookmark
• PII Scrubber Strip common personal identifiers from a paste before yo... Bookmark
• Browser Fingerprint Viewer Inspect what trackers can already learn about this brows... Bookmark
• Ephemeral Notepad Type sensitive notes that live only in this tab’s memory... Bookmark
• Mortgage Calculator Enter a home price, down payment, interest rate and term... Bookmark
• Simple Interest Calculator Enter a principal amount, annual interest rate and time... Bookmark
• Salary Calculator Enter a pay amount and its period, along with your hours... Bookmark
• Fuel Cost Calculator Enter a trip distance, your vehicle's fuel efficiency an... Bookmark
• Scientific Calculator Type or tap a full expression — digits, brackets, powers... Bookmark
• Aspect Ratio Calculator Enter your original width and height, then a new width o... Bookmark
• Ratio Calculator Solve a proportion in the form A:B = C:D by leaving one... Bookmark
• Average Calculator Paste or type a list of numbers separated by commas, spa... Bookmark
• Calorie Calculator Enter your age, sex, height, weight and activity level t... Bookmark
• Body Fat Calculator Estimate your body fat percentage using the US Navy circ... Bookmark
• Ideal Weight Calculator Estimate your ideal body weight from your height and sex... Bookmark
• Pregnancy Due Date Calculator Enter the first day of your last menstrual period, and o... Bookmark
• GPA Calculator Work out your weighted grade point average by adding eac... Bookmark
• Grade Calculator Two calculators in one: work out your current weighted g... Bookmark
• Roman Numeral Converter Convert any whole number from 1 to 3999 into Roman numer... Bookmark
• Number to Words Converter Turn any number — whole, decimal or an amount of money —... Bookmark
• Currency Converter Convert an amount between any two of 150+ world currenci... Bookmark
• Hours Calculator Add as many start-and-end time rows as you need, subtrac... Bookmark
• Event Countdown Timer Enter an event name, date and time to see a live countdo... Bookmark
• Pomodoro Timer A classic 25-minute work, 5-minute break Pomodoro timer... Bookmark
• Sort Lines Paste a list and instantly sort it alphabetically, numer... Bookmark
• Reverse Text Flip any text three ways: reverse the characters, revers... Bookmark
• Remove Line Breaks Clean up copied text by removing unwanted line breaks —... Bookmark
• Text Repeater Repeat any text as many times as you need, joined by a n... Bookmark
• Random String Generator Generate one or many random strings with full control ov... Bookmark
• Morse Code Translator Convert plain text to International Morse code and decod... Bookmark
• Binary Text Converter Convert any text into space-separated 8-bit binary, or d... Bookmark
• Caesar Cipher / ROT13 Encode or decode a Caesar shift cipher with any shift am... Bookmark
• Fancy Text Generator Type once and instantly get your text in bold, italic, s... Bookmark
• ASCII Text Banner Type a short word or phrase and get a large ASCII-art ba... Bookmark
• Word Frequency Counter Paste any text to see each word ranked by how often it a... Bookmark
• Palindrome & Anagram Checker Instantly check whether a word or phrase reads the same... Bookmark
• Dice Roller Roll any dice using tabletop notation like 2d6+3 or d20... Bookmark
• WiFi QR Code Generator Generate a QR code that lets guests join your WiFi by sc... Bookmark

Developer Tools

Free, private, browser-based developer tools: JSON formatter, hash generator, Base64 encoder, JWT decoder, regex tester and more. Nothing leaves your browser.

64 View all →

• Hash Generator Generate cryptographic hashes (MD5, SHA-1, SHA-256, SHA-... Bookmark
• Base64 Encoder & Decoder Encode plain text to Base64 or decode Base64 back to rea... Bookmark
• URL Encoder & Decoder Encode special characters for safe use in URLs, or decod... Bookmark
• JSON Formatter & Validator Paste JSON to instantly format it with indentation, mini... Bookmark
• Unix Timestamp Converter Convert Unix epoch timestamps (seconds or milliseconds)... Bookmark
• Random Number Generator Generate one or many random numbers within a custom min/... Bookmark
• Text Compare Paste two versions of any text to see a line-by-line dif... Bookmark
• Regex Tester Write a regular expression, set flags (g, i, m…) and tes... Bookmark
• Markdown Preview Type or paste Markdown to see a live HTML preview and co... Bookmark
• JWT Decoder Paste a JSON Web Token (JWT) to decode its header and pa... Bookmark
• Cron Expression Explainer Type a cron expression (e.g. 0 9 * * 1-5) and see a plai... Bookmark
• CSV to JSON Converter Paste CSV data and convert it to clean, formatted JSON.... Bookmark
• JSON to CSV Converter Paste a JSON array of objects and convert it to CSV, wit... Bookmark
• Number Base Converter Enter a number in any base and instantly see it in binar... Bookmark
• HTML Entity Encoder / Decoder Encode special characters (like <, >, & and qu... Bookmark
• Slug Generator Convert a title or any text into a clean, URL-friendly s... Bookmark
• Colour Contrast Checker Pick a text colour and a background colour to see their... Bookmark
• CSS Gradient Generator Build linear or radial CSS gradients by picking colours... Bookmark
• YAML to JSON Converter Paste YAML and convert it to clean, formatted JSON as yo... Bookmark
• JSON to YAML Converter Paste JSON and convert it to readable YAML as you type.... Bookmark
• SQL Formatter Clean up messy SQL into neatly indented, readable querie... Bookmark
• JavaScript Formatter Paste messy JavaScript and format it with consistent ind... Bookmark
• JavaScript Minifier Shrink JavaScript by removing unnecessary whitespace. Fo... Bookmark
• CSS Formatter Clean up CSS with readable indentation, or minify it for... Bookmark
• CSS Minifier Compress CSS by stripping comments and extra whitespace.... Bookmark
• HTML Formatter Indent messy HTML into readable markup, or minify it. Pr... Bookmark
• HTML Minifier Shrink HTML by removing comments and redundant whitespac... Bookmark
• XML Formatter Pretty-print or minify XML and catch basic parse errors... Bookmark
• JSON to XML Turn a JSON object or array into XML with a configurable... Bookmark
• XML to JSON Parse XML into a JSON structure you can copy into apps a... Bookmark
• Base64 to Image Paste a Base64 string or data URI, preview the image, an... Bookmark
• Meta Tag Generator Fill in SEO fields and copy ready-to-paste meta tags for... Bookmark
• Open Graph Generator Build og: and Twitter Card meta tags so links look right... Bookmark
• CSS Box Shadow Generator Tweak offset, blur, spread, colour and inset, preview li... Bookmark
• Border Radius Generator Set each corner radius (or link them), preview rounded c... Bookmark
• Robots.txt Generator Build a robots.txt for crawling rules and your sitemap l... Bookmark
• URL Parser Paste a URL to break out host, path, query params and ha... Bookmark
• cURL to Fetch Paste a cURL command from DevTools or API docs and get e... Bookmark
• JSON Diff Paste two JSON trees and get a path-level diff of adds,... Bookmark
• SVG Optimizer Shrink SVGs by removing metadata, comments and excess pa... Bookmark
• HMAC Generator Sign a message with a shared secret using Web Crypto. He... Bookmark
• JSON to TypeScript Paste any JSON and get clean TypeScript interfaces, with... Bookmark
• JSON Escape / Unescape Turn raw text into a properly escaped JSON string litera... Bookmark
• JSONPath Tester Paste JSON, type a JSONPath-style query, and see the mat... Bookmark
• ENV to JSON Converter Paste a .env file to get a clean JSON object, or paste a... Bookmark
• Fake Data Generator Generate rows of realistic-looking fake data — names, em... Bookmark
• User Agent Parser Paste a user-agent string — or use your own, prefilled a... Bookmark
• Subnet Calculator Enter an IPv4 address and a CIDR prefix (like 192.168.1.... Bookmark
• HTTP Status Codes Reference A searchable reference of every HTTP status code from 1x... Bookmark
• PX to REM Converter Convert pixels to rem (or em) and back using any root fo... Bookmark
• Markdown Table Generator Fill in an editable grid and get clean, aligned GitHub-f... Bookmark
• Base32 Encoder / Decoder Encode plain text to RFC 4648 Base32 or decode a Base32... Bookmark
• Unicode Character Lookup Paste any characters to see each one's Unicode code poin... Bookmark
• Password Strength Checker Type a password to see its length, character variety, es... Bookmark
• Crontab Builder Pick when a job should run using simple menus and get th... Bookmark
• Placeholder Image Generator Create a custom placeholder image at any size with your... Bookmark
• JSON Schema Generator Turn a sample JSON document into a ready-to-use draft-07... Bookmark
• Mock JSON Data Generator Design a template object using tokens such as {{firstNam... Bookmark
• GraphQL Formatter Paste a messy GraphQL query, mutation or SDL schema and... Bookmark
• TOML to JSON Converter Convert TOML config into JSON, or serialize JSON back in... Bookmark
• CSV to Markdown Table Paste any CSV and get a clean, GitHub-flavoured Markdown... Bookmark
• Bitwise Calculator Perform bitwise AND, OR, XOR, NOT and left/right shifts... Bookmark
• JWT Generator Build and sign a JSON Web Token entirely in your browser... Bookmark
• Chmod Calculator Tick read, write and execute for the owner, group and ot... Bookmark

Finance & Trading Tools

Free options pricing, position sizing, Sharpe ratio, CAGR, bond yield and investment calculators. Everything runs in your browser — no signup, nothing uploaded.

15 View all →

• Black-Scholes Option Pricer Enter the spot price, strike, time to expiry, risk-free... Bookmark
• Options Payoff Calculator Add long or short calls, puts and stock to build any opt... Bookmark
• Position Size Calculator Enter your account size, the percentage you are willing... Bookmark
• Risk / Reward Ratio Calculator Enter your entry price, stop-loss and target to see the... Bookmark
• Kelly Criterion Calculator Enter your win probability and your average win-to-loss... Bookmark
• Sharpe & Sortino Ratio Calculator Paste a list of periodic returns (as percentages) and se... Bookmark
• CAGR Calculator Enter a beginning value, an ending value and the number... Bookmark
• Stock Average Calculator Add a row for each lot of shares you bought — its price... Bookmark
• Dividend Calculator Project how much passive income a dividend portfolio wil... Bookmark
• Forex Pip Value Calculator Work out exactly how much one pip is worth for any curre... Bookmark
• Crypto Profit Calculator See the real profit or loss on a crypto trade after buy... Bookmark
• Bond Yield to Maturity Calculator Find a bond's true yield to maturity by numerically solv... Bookmark
• Portfolio Rebalancing Calculator Enter each holding's current value and its target alloca... Bookmark
• SIP Calculator Estimate what a monthly Systematic Investment Plan could... Bookmark
• FIRE Calculator Find out how much you need to be financially independent... Bookmark

Business & SaaS Tools

Free LTV, CAC, churn, MRR/ARR, cohort retention, burn rate and Rule of 40 calculators for founders and marketers. Runs in your browser — nothing uploaded.

14 View all →

• Customer Lifetime Value (LTV) Calculator Estimate how much gross profit an average customer gener... Bookmark
• CAC & Payback Calculator Work out what it costs to acquire a customer, how many m... Bookmark
• Churn Rate Calculator Measure how fast you are losing customers and revenue ov... Bookmark
• MRR & ARR Calculator Turn your subscription plans into monthly and annual rec... Bookmark
• Cohort Retention Calculator Turn raw cohort numbers into a colour-coded retention he... Bookmark
• Burn Rate & Runway Calculator Work out how many months of cash runway you have from yo... Bookmark
• Rule of 40 Calculator Add your revenue growth rate to your profit margin to ge... Bookmark
• Break-Even Point Calculator Find exactly how many units you must sell to cover your... Bookmark
• ROI & ROAS Calculator Switch between ROI and ROAS mode to measure how well an... Bookmark
• Profit Margin Calculator Enter your cost and either a selling price or a target m... Bookmark
• Freelance Rate Calculator Enter your target income, business expenses, billable ho... Bookmark
• Take-Home Pay Calculator Enter your gross annual salary, an effective tax rate an... Bookmark
• Cash Flow Projection Calculator Model your cash position month by month: set a starting... Bookmark
• Pricing & Margin Calculator Work pricing in both directions: enter a unit cost and a... Bookmark

SEO Tools

Free JSON-LD schema generators, hreflang and sitemap builders, SERP preview, readability and keyword-density checkers. Runs in your browser — nothing uploaded.

13 View all →

• Article Schema Generator Fill in a short form and get clean Article, BlogPosting... Bookmark
• Product Schema Generator Turn product details into Product JSON-LD with price, av... Bookmark
• FAQ Schema Generator Add question-and-answer pairs and get valid FAQPage JSON... Bookmark
• LocalBusiness Schema Generator Enter your business name, address, hours and location an... Bookmark
• Event Schema Generator Create standards-compliant Event structured data (JSON-L... Bookmark
• Breadcrumb Schema Generator Build valid BreadcrumbList structured data (JSON-LD) so... Bookmark
• Hreflang Tag Generator Generate correct rel="alternate" hreflang link tags for... Bookmark
• XML Sitemap Generator Turn a plain list of URLs into a valid XML sitemap that... Bookmark
• SERP Snippet Preview See exactly how your page will look in Google's search r... Bookmark
• Readability Score Checker Paste any text to get instant Flesch Reading Ease, Flesc... Bookmark
• Keyword Density Checker Paste any text to see how often each word and phrase app... Bookmark
• Heading Structure Checker Paste a page's HTML to extract its H1-H6 headings, view... Bookmark
• UTM Campaign URL Builder Create properly encoded campaign tracking URLs by adding... Bookmark

AI Tools

Free AI text tools that run entirely in your browser: summarizer, sentiment analysis, entity extraction, question answering and keyword extraction. Nothing is uploaded.

13 View all →

• AI Text Summarizer Paste a long article, report or passage and get a concis... Bookmark
• Sentiment Analyzer Paste a review, comment or message and see whether its s... Bookmark
• Named Entity Extractor Paste text and highlight the people, organizations and l... Bookmark
• Question Answering Paste a passage, ask a question, and an on-device model... Bookmark
• Keyword Extractor Paste text and get the phrases that best represent it, r... Bookmark
• AI Translator Translate text between 12 languages entirely on your dev... Bookmark
• AI Grammar Corrector Clean up grammar and spelling mistakes with an AI model... Bookmark
• AI Paraphraser Reword your writing with an AI paraphraser that runs ent... Bookmark
• AI Emotion Detector Paste any text and this tool reads the emotions behind i... Bookmark
• Zero-Shot Text Classifier Give the classifier a piece of text and a list of your o... Bookmark
• AI Image Caption & Alt-Text Generator Turn any image into a descriptive caption and ready-to-p... Bookmark
• AI Object Detector Upload a photo and this tool finds and labels the object... Bookmark
• Chat with your PDF Upload a PDF and ask it questions in plain language. Ans... Bookmark

Why Whiztools

Built for privacy, speed & simplicity

Unlike typical online converters, Whiztools never uploads your files. Browse image, PDF, utility and developer tools — no account needed. Learn more

Zero upload architecture

Every tool processes files in your browser's sandbox. Nothing is sent to any server — not even temporarily.

Data sent: 0 KB

Instant processing

No upload queue, no waiting. Processing starts the moment you drop a file — powered by WebAssembly for native speed.

Avg. latency: <50ms

Works offline

Once loaded, every tool works without an internet connection. Perfect for air-gapped environments and travel.

Offline: Fully capable

How browser-based tools work

Whiztools runs 100% locally. Your files are never uploaded over the internet. Here is the process step-by-step.

1

Load the Tool

When you visit a page, your browser downloads the light WebAssembly modules and HTML assets. This happens instantly.

2

Drop Your Files

Select a file. The script opens it inside a secure local sandbox in your tab. Processing utilizes your own device's CPU/GPU.

3

Instant Download

The edited file or output is generated as a local download blob in your browser memory and saved to your device. Done.

Supported file formats

Whiztools processes a wide variety of formats directly on your machine. No cloud conversions required.

PDF & Docs

PDF (.pdf) Markdown (.md) Plain Text (.txt)

Images

PNG (.png) JPEG (.jpg) WebP (.webp) HEIC (.heic) GIF (.gif) SVG (.svg)

Code & Data

JSON (.json) CSV (.csv) YAML (.yaml) TOML (.toml) SQL (.sql) XML (.xml)

Audio

MP3 (.mp3) WAV (.wav) M4A (.m4a) OGG (.ogg)

Frequently asked questions

Everything you need to know about Whiztools. Can't find an answer? Contact us.

01

Do Whiztools upload my files to a server?

No. Processing runs in your browser. Photos, PDFs and text are not sent to Whiztools servers for conversion.

02

Are the tools really free?

Yes. No account, no per-file fee and no watermark. The site is supported by labeled advertising on content pages.

03

How is this different from typical free converters?

Most converters upload your file first. Whiztools runs the edit in the tab you already have open — a stronger privacy default for IDs, contracts and personal photos.

04

Can I use Whiztools offline?

Yes. Once a tool page has loaded, it works without an internet connection. All processing happens locally in your browser.

Latest guides

All guides →

• Sep 29, 2026 How to Get a Barcode for Your Product Two different things get called “getting a barcode”: drawing the symbol, which is free ari...
• Sep 16, 2026 How to Add Captions to a Video for Free, Without Uploading It Captions are the feature most video apps charge for by the minute. Here is how to make the...
• Sep 16, 2026 How to Cut the Pauses and “Ums” Out of a Talking-Head Video Cutting dead air by hand takes longer than recording it. Automatic silence and filler-word...