Duotone Generator
Map an image onto two colours for a bold graphic look.
Compress WebP files, or convert into WebP and compress.
Drop an image here, or click to choose one
WebP, JPEG or PNG in · compressed WebP out
The WebP Compressor works on WebP files and also accepts JPEG and PNG, so it doubles as a convert-and-compress pass. Lossy WebP stays clean well below where JPEG starts blocking, so settings around 70 are often perfectly usable — a saving that simply does not exist in JPEG. Alpha survives in both lossy and lossless modes.
WebP is already the most efficient format most sites can safely serve, which means the images that most need compressing are often already WebP.
The controls that matter are the quality and the choice between lossy and lossless, and both are here with the size updating live. Lossy WebP holds up well below where JPEG starts showing blocks, so a setting of 70 is often perfectly usable — the kind of saving that does not exist in JPEG. Alpha is preserved in both modes. JPEG and PNG sources are accepted too, so this doubles as a convert-and-compress pass in one step.
WebP holds together at quality levels that would visibly wreck a JPEG, which is where the extra saving comes from.
Lossless WebP typically beats PNG by 20 to 30 percent on identical pixels, so logos benefit too.
Alpha is kept whichever mode you choose, unlike JPEG which has none at all.
Feed it a JPEG or PNG and you get the format change and the size reduction in one pass.
Original and compressed sizes sit side by side so the benefit is a number, not a hope.
WebP, JPEG or PNG all work — the output is WebP either way.
Lossy for photographs, lossless for logos, icons and screenshots.
Try 70 to 80. WebP stays clean lower than JPEG does, so push further than feels safe.
Save it with the percentage saved shown alongside.
Further than JPEG. Many photographs are still clean at 65 to 70, where an equivalent JPEG would be visibly blocky. Check gradients and skin tones before committing.
Yes, in both lossy and lossless modes. That is the combination that lets WebP replace PNG and JPEG at once.
Usually yes. WebP lossless typically beats PNG by 20 to 30 percent on the same image, with identical pixels and identical transparency.
You can, but each pass loses a little more. If you still have the original JPEG or PNG, compress from that instead of from the WebP.
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Write the first reviewMap an image onto two colours for a bold graphic look.
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