WebP Converter
Convert images to WebP for smaller files, or back to JPG and PNG for compatibility. Runs in your browser with no upload.
Last reviewed by the Radiatus Cloud team
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Why WebP exists
WebP was designed to replace both JPEG and PNG with one format. It offers lossy compression typically 25 to 35 percent smaller than JPEG at equivalent visual quality, lossless compression around 26 percent smaller than PNG, and an alpha channel in both modes. That last point matters: before WebP you had to choose between transparency and efficient photographic compression.
Support is no longer a concern
Every current browser supports WebP, including Safari since version 14. The remaining gaps are old software rather than old browsers: some desktop image editors, some email clients and older content management systems still refuse it. For a website there is no practical compatibility argument left. For an image someone might download and open in an arbitrary application, JPEG is still the safer handoff.
Lossy or lossless
Use lossy for photographs, at quality around 80. Use lossless for screenshots, logos and anything with sharp edges or text, where lossy compression produces the same fringing JPEG does. WebP supporting both is the whole point of the format; choosing the wrong mode discards its advantage.
Converting from WebP
Going back to JPEG or PNG is sometimes necessary for a tool that will not accept WebP. Converting a lossy WebP to JPEG re-encodes lossy content as lossy, compounding the loss, so do it from the original where you still have one. Converting to PNG avoids further loss but produces a much larger file.
AVIF is the next step
AVIF typically halves JPEG again and beats WebP by a further 20 to 30 percent. Encoding is noticeably slower and support is slightly narrower. Serving AVIF with a WebP fallback through a picture element is the current best practice where image weight genuinely matters.
Related tools
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- Placeholder Image Generator — Generate placeholder images at any size with custom colours and label text. Produced in your browser as downloadable files, no external hotlinking.
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Frequently Asked Questions
Is WebP supported everywhere?
In browsers, effectively yes, including Safari since version 14. The gaps are old desktop editors, some email clients and older CMS software, so JPEG remains safer for a file someone will download and open elsewhere.
How much smaller is WebP?
Typically 25 to 35 percent smaller than JPEG at equivalent visual quality, and around 26 percent smaller than PNG in lossless mode. It also supports transparency in both modes.
Should I use lossy or lossless WebP?
Lossy at around quality 80 for photographs; lossless for screenshots, logos and anything with sharp edges or text, where lossy compression causes visible fringing.
Can I convert WebP back to JPG?
Yes, though converting a lossy WebP to JPEG re-encodes lossy content and compounds the loss. Convert from the original where you still have one, or use PNG to avoid further loss at the cost of size.
Is AVIF better than WebP?
On compression, yes: typically 20 to 30 percent smaller again. Encoding is slower and support slightly narrower, so serving AVIF with a WebP fallback is the usual approach.
Privacy & Security
Conversion handled locally.
About This Tool
This tool runs entirely in your browser. No data is sent to any server, ensuring complete privacy. Simply use the interface above to get started — no registration or login required.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.
Related Tools
EXIF Viewer
ImageExtract hidden EXIF data (Camera, GPS, Settings) from images.
Favicon Generator
ImageGenerate favicons and app icons at every required size from one source image, with the exact HTML to reference them.
Placeholder Image Generator
ImageGenerate placeholder images at any size with custom colours and label text. Produced in your browser as downloadable files, no external hotlinking.