Compress WebP images — free, private, no upload
Re-encoded with libwebp in your browser. You see exact before/after sizes on every file.
About compressing WebP
WebP is the format Google built for the web in 2010. It compresses photos roughly 25–35% smaller than equivalent-quality JPEG, supports both lossy and lossless modes, alpha transparency, and animation — one format that replaces JPEG, PNG and GIF in most web contexts. Since 2020 every mainstream browser supports it, and it is now the pragmatic default for website images.
How to compress WebP
- 1Drop WebP files above — batches are fine, and nothing is uploaded.
- 2Pick a quality (80 is visually lossless for photos). The output format stays the same unless you change it.
- 3Watch each file’s size drop, then download individually or as a ZIP.
WebP strengths & limitations
Strengths
- 25–35% smaller than JPEG at the same visual quality
- Transparency in both lossy and lossless modes
- Supported by all modern browsers since 2020
Limitations
- Some desktop apps and older tools still cannot open it
- Beaten by AVIF and JPEG XL on pure compression
- Lossy mode caps out at 8-bit color
Frequently asked questions
How does WebP compression work here?+
Your WebP is decoded and re-encoded at the quality you choose using libwebp, entirely in your browser.
What quality setting should I use for WebP?+
Quality 80 is the sweet spot for photos — visually identical to the original for almost everyone. Use 60–70 for thumbnails and previews, 90+ only when you plan to edit the image again later.
Is there a limit on file size or number of images?+
No hard limits: processing runs on your own device, so the only constraint is your browser’s memory for truly gigantic images. Batch as many files as you want.
Will compressing WebP remove metadata?+
Yes. Output files are built from raw pixels, so EXIF data — GPS location, camera model, timestamps — is stripped. Orientation is baked into the pixels first so photos stay upright. This usually saves a few extra kilobytes too.
Are my images uploaded anywhere?+
No. The codecs run as WebAssembly in your browser; the page works offline once loaded. Files, previews and results all live in your device’s memory only.