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Compress WebP images by quality, target size, or dimensions using your browser WebP encoder. Nothing is uploaded.
Re-encodes your image as WebP at a quality you set, or iterates toward a target file size. WebP keeps transparency, so no background fill is applied.
WebP export uses the canvas encoder in your browser. Most current browsers support it. If yours cannot encode WebP, the tool tells you instead of silently saving another format.
Everything runs on your device. No upload, and re-encoding drops embedded metadata. Your files are never sent to imgtoolsbase or any other server.
Compress WebP is a private, browser-based WebP compressor. It relies on the canvas WebP encoder built into modern browsers, so it is quality-based rather than a full WebP encoder with effort and alpha-quality controls.
Choose a quality level or a target size in KB, optionally resize, and download. Transparency is preserved because WebP supports an alpha channel.
Set the WebP quality and compare the before and after size on every run.
Target mode lowers quality, then dimensions if needed, to approach your KB goal using the browser encoder.
WebP supports an alpha channel, so transparent areas are preserved without a background fill.
This is the browser canvas encoder, not an advanced WebP library, so options like effort and separate alpha quality are not available.
Ship lighter WebP images for faster pages on browsers that support it.
WebP often beats PNG on size while keeping transparency.
Compress WebP photos for quicker loading thumbnails and previews.
Reduce WebP asset weight before bundling or upload.
No. It uses the browser canvas WebP encoder, which is quality-based. There is no lossless or advanced encoder mode here, and the page says so plainly.
The tool detects it and shows a clear message rather than quietly saving a different format. Use a recent Chrome, Firefox, Safari, or Edge.
Yes. WebP has an alpha channel, so transparent areas stay transparent and no background color is added.
No. WebP compression runs locally on your device, so the file never leaves your browser.
It re-encodes as WebP at different quality levels, and downscales if needed, to get close to the KB target, then reports the size it reached.
Tools that pair well with Compress WebP.