Compress WebP Images
Re-encode WebP files at a lower quality without losing the WebP advantage.
Your images stay on your device. Nothing is uploaded.
WebP already compresses better than JPEG and PNG, but assets exported at default quality often still have room to shrink. Image-Compressor.uk re-encodes WebP files at a lower quality target while keeping the format — useful when you need a hard size cap on existing WebP assets.
Files stay on your device. Drop a WebP below to compress it, or convert to AVIF for an additional 20–30% saving on supported browsers.
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Frequently asked questions
- How do I compress a WebP image?
- Drag and drop your WebP file (or click to select) and the compressor reduces its size automatically using the pre-tuned settings on this page. Adjust the quality slider, max dimension, or output format for a stronger or gentler compression. Everything runs in your browser — your file never leaves your device.
- Does compressing a WebP reduce quality?
- WebP is lossy by default, so re-encoding does compound compression slightly. Drops are subtle — most users see no visible difference between q90 and q75 on photographic images. You can preview before downloading and tune the quality slider until the size and quality balance feels right.
- Is the WebP compressor free?
- Yes. Image Compressor is free, requires no signup, and has no upload limits. For batches, use the bulk compressor.
- Are my WebP files uploaded to a server?
- No. Compression happens entirely in your browser using the Canvas API. Files never touch our servers — that is what makes the tool both private and fast.
- What is the largest WebP I can compress?
- Single uploads are capped at 25 MB to keep the tool responsive in the browser. Very large files may be slower because compression uses your device's memory and CPU rather than a server.
Ready to compress your WebP files?
Drop them in. Compression is free, instant, and never leaves your device.
Start compressing