About this tool
Choose an image, set WebP quality, then create a result. The WebP encoder runs on your device in a background worker and preserves transparency. Compare the result before downloading.
Changing the image or its settings clears the previous download so the saved file always matches your current edits. File size can increase; compare the actual result before choosing which version to keep.
Exports a still image. Animation is not preserved; SVG is converted to pixels.
Your images stay on this device. Nothing is uploaded.
Frequently asked questions
Why convert to WebP?
Choose an image, set WebP quality, then create a result. The WebP encoder runs on your device in a background worker and preserves transparency. Compare the result before downloading. Changing the image or its settings clears the previous download so the saved file always matches your current edits. File size can increase; compare the actual result before choosing which version to keep.
Is my image uploaded to a server?
No. The image is decoded on a canvas and encoded by the WASM libwebp codec entirely in your browser — nothing leaves your device.