Convert JPG to WebP online, free
WebP is roughly what JPEG would be if it were designed today: the same visual quality in a smaller file, supported natively by every browser released in the last several years. If a performance report has told you to serve images in a next-generation format, this is the conversion it means. Swapping a page's photographs from JPG to WebP is usually the largest reduction in page weight available without touching the design.
Why the files come out smaller
WebP's encoder is simply more efficient than JPEG's — it predicts blocks of an image more accurately and spends fewer bytes describing them. That is not a marketing claim about this tool, it is the reason the format was created. The same photograph at the same apparent quality lands meaningfully smaller as a WebP, which is why nearly every large site has already made the switch.
Choosing a level
Fast, Recommended, and Smallest control the trade between encoding time and output size. Recommended is the default and is the right choice for almost all web imagery. Fast is useful when you are pushing a large batch through and want it back quickly. Smallest spends longer looking for savings and earns it on hero images and anything above the fold, where page weight is felt most.
Colour profiles, which matter more on the web
The profile embedded in your JPG is kept by default, so the image does not shift. For images going straight onto a website, Convert to sRGB is usually the better choice: it makes the colours render identically across browsers instead of leaving each one to interpret an unfamiliar profile, which is a common cause of photos that look right in one browser and oversaturated in another.
Converting an image library
Upload up to 100 JPGs at once from your device, Google Drive, or a direct URL, and your original filenames come back unchanged — which matters when you are replacing files referenced by name across a site. Everything is deleted from the servers within an hour.
What you get
- Meaningfully smaller files at the same apparent quality
- A format every current browser displays natively
- Three levels covering speed, balance, and smallest output
- sRGB conversion for consistent colour across browsers
- Up to 100 files per batch with original filenames preserved
- No account, no watermark, and files deleted within an hour
What's next?
Have PNGs to convert as well? Convert PNG to WebP handles those and keeps their transparency intact. If something later refuses a WebP file, Convert WebP to JPG converts it back. And to squeeze existing WebP files down further, Compress WEBP works without changing format.