Compress WebP Images — Free & Online
Bulk compress WebP images, or convert JPG to WebP and PNG to WebP, without losing quality. No installs, no limits — preview before and after, then download or ZIP.
100% browser-based. Your images never leave your device.
💡Tip: If the target KB is impossible without destroying quality, you'll get the best-effort smallest version. WebP usually compresses better than JPG.
Compress in 4 simple steps
Frequently Asked Questions
How do I compress a WebP image online?
Can I convert JPEG to WebP?
How to compress images to WebP?
How to make an image into WebP?
How to convert JPG to WebP locally?
Can I bulk convert JPG or PNG to WebP?
Is this WebP compressor completely free?
Does compressing WebP reduce quality?
Are my files secure?
Does this support animated WebP?
Does it work on mobile?
Free WebP Compressor Online
WebP is Google's modern image format, built to deliver smaller file sizes than JPG or PNG without a noticeable drop in visual quality. This free WebP compressor runs entirely online in your browser — compress an existing WebP file, or convert JPG to WebP and PNG to WebP, all in bulk, with no installs and no upload to a server.
Convert JPG to WebP or PNG to WebP
To turn a JPEG into WebP, upload the file, leave the output format set to WebP, and click Compress to Target. The same applies to PNG: this doubles as a JPG to WebP converter and a PNG to WebP converter, since both formats can be uploaded and re-encoded as WebP in one pass. Because everything happens locally in your browser, it also works as a way to convert JPG to WebP locally without installing desktop software like Photoshop or a standalone converter.
Bulk WebP Compression
Select or drag multiple files at once to use this as a bulk WebP compressor or a JPG to WebP bulk converter. Every file is processed with the same target size and preset, and you can download each one individually or grab the whole batch as a single ZIP — useful for product photos, blog galleries, or any folder of images that needs to be web-ready.
Compress WebP Without Losing Quality
The compressor uses a binary-search algorithm to find the highest quality setting that still meets your target file size, rather than applying a fixed, heavy-handed compression level. That means you can compress WebP images down to a specific KB target while keeping them visually close to the original — a similar idea to tools like 11zon's WebP compressor, but running fully client-side.
A Note on Animated WebP
This tool is built for static images — single-frame WebP, JPG, and PNG. An animated WebP compressor needs to preserve and re-encode every frame of the animation, which works differently from compressing a still photo, so animated files aren't supported here.
Supported Formats
| Format | Best for | Transparency | Compression |
|---|---|---|---|
| WebP | Web images, photos, icons | Yes | Excellent |
| JPG | Photos, no transparency | No | Good |
| PNG (input) | Logos, screenshots | Yes | Moderate |
How This Tool Works
This compressor runs entirely in your browser using the HTML5 Canvas API. It performs a binary-search across quality values to find the highest setting that still produces a file at or below your target. If quality alone isn't enough, it progressively reduces the canvas dimensions until the target is met — giving you the smallest possible file at the highest possible quality.