WebP Converter

About This Tool

The WebP Converter converts images between WebP, PNG, and JPG formats entirely in your browser using the HTML5 Canvas API. WebP is a modern image format developed by Google that provides superior compression — WebP images are typically 25–35% smaller than equivalent JPEG images at the same visual quality.

All conversions run locally. No files are uploaded to any server. The quality slider controls compression for WebP and JPG outputs; PNG output is always lossless and ignores the quality setting.

How to Use

1. Select the output format: WebP, PNG, or JPG.
2. Adjust the quality slider for WebP or JPG output.
3. Drop an image or click to browse and select a file.
4. Review the file size comparison, then click Download.

Use Cases

Frontend developers convert PNG and JPG assets to WebP to improve page load speed and Core Web Vitals scores. Designers preparing assets for modern browsers use WebP to reduce bandwidth. The reverse direction — WebP to PNG or JPG — is useful when older software or platforms don't support WebP yet.

FAQ

• Why use WebP over JPG? — WebP typically produces files 25–35% smaller than JPEG at equivalent quality. All modern browsers support WebP.
• Does WebP support transparency? — Yes. WebP supports an alpha channel like PNG. If your source image has transparent areas, they are preserved in WebP output.
• Does the browser support WebP output?— Chrome, Edge, Firefox, and Safari all support WebP encoding via the Canvas API. If a browser doesn't support WebP encoding, the tool falls back to PNG automatically.