Compress WebP images
Free, instant, and done right here — your photos never leave your device.
Lower quality = smaller file.
Your photos never leave your device — everything happens right here in your browser.
How it works
- 1
Drop your WebP files below — or tap to pick them
- 2
Choose your quality level — 80 is a great default for most uses
- 3
Download your compressed WebP files one at a time or as a ZIP
WebP is already an efficient format — more so than JPG or PNG for most images. But even WebP files can be saved at higher quality than necessary for a given use case, and re-compressing them at a lower quality setting can meaningfully reduce their size. This is especially useful when you have a batch of WebP images from a web scrape, an asset library, or a CMS export that you want to optimise further before deploying.
WebP supports both lossy and lossless compression. imgAxe's compress tool re-encodes at lossy quality, which is what most WebP images on the web use. At quality 80, the resulting file is typically much smaller than the original with barely any perceptible difference for photographic content. For graphics with sharp lines or text — icons, illustrations — a slightly higher quality like 85 or 90 will preserve those crisp edges better.
One useful property of WebP is that it handles transparency in lossy mode. If your WebP image has a transparent background, compressing it with imgAxe preserves that transparency in the output. You get a smaller file without losing the alpha channel.
Everything runs in your browser. Your files never touch a server — no upload, no account, nothing to register for. You can confirm this by watching the Network tab in your browser's developer tools during a compression. There will be no outbound image traffic, just the local download when you are done.
Common questions
- Is this tool free?
- Yes, completely free. No account, no watermark, no cap on how many WebP files you compress.
- Do my files leave my device?
- No. Compression runs entirely in your browser. Nothing is uploaded to any server. Open the Network tab in your browser's developer tools during a compression and you'll find no outbound image traffic.
- Is transparency preserved when compressing?
- Yes. WebP supports transparency in lossy mode, and imgAxe preserves the alpha channel during compression. Your transparent or semi-transparent areas will be intact in the output file.
- What quality setting should I use?
- Quality 80 is a solid default for photographic WebP images — it significantly reduces file size with minimal visible impact. For images with sharp edges, fine lines, or text, try 85 or 90 to avoid softening those details.
- Is there a file size or batch limit?
- No limit is set by imgAxe. The practical ceiling is your device's available memory, which is rarely a constraint for typical image batches on modern hardware.