Image Converter
Convert an image between PNG, JPG, and WebP — processed locally in your browser, never uploaded.
Drag & drop an image here
or browse your files — PNG, JPG, or WebP
How the image converter works
Your browser already knows how to decode PNG, JPG, and WebP images natively. This tool loads your file into an <img> element, draws it onto a canvas, and then asks the canvas to export itself in the target format using canvas.toBlob(). Because the canvas holds raw pixel data, it can re-encode that data into any format your browser supports — no external service required.
One thing to know: PNG is a lossless format that supports transparency, while JPG does not support transparency (transparent areas will be filled with white) and always applies some compression. WebP supports both transparency and adjustable lossy or near-lossless compression, and typically produces the smallest files of the three.
Choosing the right format
- PNG — best for logos, screenshots, and graphics with transparency or sharp edges/text
- JPG — best for photos where small file size matters more than perfect transparency
- WebP — best all-around choice for the web when supported, combining small size with transparency support
For a deeper comparison, see our guide: PNG vs JPG vs WebP: Which Image Format Should You Use?
Frequently asked questions
Will converting to JPG remove transparency?
Yes. JPG doesn't support transparency, so any transparent areas in your source image will be filled with white when converted.
Does the quality slider affect PNG output?
No. PNG is lossless, so the quality slider only affects JPG and WebP output. PNG file size instead depends on image complexity.
Is my image uploaded during conversion?
No. The entire conversion happens locally in your browser using the Canvas API. Nothing is sent to a server.