About this tool
Format Converter re-encodes your image in PNG, JPEG or WebP, showing you the estimated output file size before you download. Adjust quality for JPEG and WebP. Everything runs locally — nothing is uploaded.
How it works
- 1Upload any image.
- 2Choose your output format: PNG, JPEG or WebP.
- 3For JPEG and WebP, set the quality slider.
- 4Live stats show original size, output size and reduction percentage.
Common use cases
- ✓Converting PNGs to JPEG for smaller file size
- ✓Converting photos to WebP for web performance
- ✓Preparing images for specific platform requirements
- ✓Standardising image libraries
Privacy first. Format Converter runs entirely inside your browser using the HTML5 Canvas API. Your images are never uploaded to any server, stored anywhere or shared with third parties. Everything happens locally on your device.
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