Convert a JPG or PNG image to WebP format, with an adjustable quality slider, processed entirely in your browser.
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Output is re-encoded as WebP.
Your image is processed entirely in your browser. Nothing is uploaded to any server.
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This tool draws your uploaded image onto a canvas and re-exports it as WebP using the canvas encoding built into every modern browser, no upload or third-party service involved.
WebP typically produces smaller file sizes than JPEG or PNG at a comparable visual quality, which helps pages load faster. It's supported by all modern browsers, making it a solid choice for web images where broad legacy compatibility isn't a concern.
Upload a 2 MB PNG logo with a transparent background and convert it at 85% quality, the transparency is preserved in the WebP output (unlike converting to JPG, which always fills transparent areas with white), and the resulting file is typically meaningfully smaller than the source PNG, since WebP's compression is generally more efficient at a comparable visual quality.
Converting images to WebP for use somewhere that doesn't actually support it, like certain older email clients or some design software, always confirm your target platform accepts WebP before switching an entire workflow to it.
Assuming WebP is always smaller regardless of quality setting or source image, at very high quality settings the size advantage over JPEG narrows, compare the resulting file size against your source rather than assuming a fixed percentage savings.
Not testing the output for the specific use case, like a print workflow, print software and some older applications have inconsistent WebP support, verify compatibility with your specific tools before replacing your JPG/PNG originals entirely.
Yes, WebP supports transparency, and if your source image has an alpha channel, it's preserved in the WebP output (unlike converting to JPG, which always fills transparency with white).
80-90% is a reasonable starting point for most images, balancing file size against visual quality. Adjust the slider and compare the resulting file size for your specific image.
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