WebP Converter
Convert an image to WebP using your browser's own encoder, with an adjustable quality setting - and a clear error if your browser can't encode WebP.
Upload an image and adjust quality - this tool uses your browser's own WebP encoder to convert it, entirely locally.
For the newer, sometimes even smaller AVIF format instead, see the AVIF Converter - though AVIF encoding support varies more by browser.
What Is WebP?
WebP is a modern image format that typically produces smaller file sizes than JPG or PNG at comparable visual quality, and is now widely (though not universally) supported by browsers.
Why Use This Tool?
Converting to WebP for web performance is common, and doing it via your browser's own built-in encoder (rather than uploading to a third-party service) keeps your image entirely local.
How to Use It
- Upload an image.
- Adjust the quality slider.
- Download the converted WebP file - if your browser can't encode WebP, this tool tells you clearly rather than producing a broken file.
Browser Support
WebP encoding via canvas is supported by most current major browsers, but not guaranteed on every browser/version - this tool checks and reports clearly if encoding isn't available in your current browser, rather than claiming universal support.