Convert JPG to WebP
100% private — runs on your device, never uploaded. Works offline once loaded.
Convert JPG/JPEG images into the modern WebP format for smaller files and faster websites, without losing much quality. Runs entirely in your browser.
Why shrink JPG photos into WebP
JPG has been the default photo format since the 1990s, but it was designed for a world of dial-up modems and small screens. WebP is Google's newer image codec, and for typical photographic content it produces files that are noticeably smaller than a JPG at the same visual quality. On a photo-heavy page — a portfolio, a real-estate listing, a recipe blog with step-by-step shots — that difference adds up to a genuinely faster page load.
Page speed isn't just a nicety anymore. Google's Core Web Vitals use Largest Contentful Paint as a ranking signal, and PageSpeed Insights will flag any JPG on your page with the suggestion to 'serve images in next-gen formats.' Converting your JPGs to WebP before uploading is the most direct way to clear that warning without redesigning anything.
How WebP squeezes more out of the same pixels
JPEG compresses each 8x8 block of pixels independently using a discrete cosine transform, then Huffman-codes the result — a scheme designed in an era when computing power was the bottleneck. WebP's lossy mode instead borrows techniques from video compression: it predicts each block from neighboring blocks already decoded (much like a video codec predicts one frame from another) and encodes the leftover difference with arithmetic coding, which packs information more tightly than Huffman coding does.
The practical result is that WebP can throw away less visual information to hit the same file size, or hit a smaller file size for the same visual information — engineers at Google have measured 25–35% smaller files than JPG at matching quality on typical photographs.
Where JPG still has the edge
WebP is lossy by default here too, so repeatedly re-compressing an already-converted WebP will degrade it just like re-saving a JPG does — always convert from your original JPG, not from a WebP copy. Some older or specialized software still expects a .jpg extension: certain print shops, some legacy content-management systems, and a handful of email clients that render inline images poorly (or not at all) when they're WebP.
- Keep your source JPGs as the master files for archiving or print
- Convert to WebP specifically for the copies you upload to a website or app
- If a platform's upload form rejects .webp, you likely just need the original JPG or a converted JPG instead
A quick tip for batches
If you're converting an entire product-photo folder or a gallery export, drop all the files in at once rather than one at a time — it saves the repetitive clicking and gives you a single batch of WebP files ready to upload to your CMS or CDN in one go.
Frequently asked questions
Why use WebP?
WebP images are typically 25–35% smaller than JPG at similar quality, which makes web pages load faster.
Is it private?
Yes — conversion happens on your device and nothing is uploaded.
Will converting to WebP make my photos look worse?
At normal viewing sizes the difference is very hard to spot — WebP is tuned to discard the visual information human eyes notice least first, the same principle JPG uses but applied more efficiently.
Can I convert several JPGs at once?
Yes, this tool accepts multiple files in one go and converts each of them to WebP, so you can process a whole folder in one pass.
Do all browsers display WebP images?
Every current major browser — Chrome, Firefox, Safari, and Edge — supports WebP natively; only very old browser versions from before roughly 2020 may not.
Does converting strip photo metadata like GPS location or camera settings?
Conversion focuses on the pixel data, so metadata handling can vary; if you need to preserve or scrub EXIF data specifically, check the output file with a dedicated metadata viewer afterward.
Should I convert a JPG that's already been compressed heavily?
You can, but converting a already-compressed, artifact-heavy JPG won't undo that damage — WebP compresses whatever visual information is present, it can't restore detail that JPG's compression already discarded.
Is it private to convert here?
The conversion happens locally in your browser, so your photos aren't sent to a server as part of this process.
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