Convert format
Pick a destination format and convert as many images as you like at once. Transparency is preserved wherever the format supports it, and when it cannot be, we tell you beforehand.
Your file stays on your device: nothing is uploaded
How it works
Each image is rebuilt from scratch in the format you choose. JPG, WebP and AVIF come out at quality 82 out of 100, a balance between size and sharpness you can shift under “Advanced options”; PNG is always lossless. AVIF compresses the most, but it is also the slowest to produce: worth it when size matters more than waiting. Files already in the requested format are left untouched rather than re-encoded: a WebP→WebP conversion would degrade the image for no gain at all.
Frequently asked questions
- Which formats can I convert? What about iPhone HEIC photos?
- JPG, PNG, WebP and AVIF go in here, up to 100 files at a time and 50 MB each, mixed however you like. HEIC photos don’t: convert them first with “HEIC → JPEG”, then bring them back here if you need another format.
- Why is my file bigger after going from JPG to PNG?
- PNG keeps every pixel exactly as it is, and on a photograph that takes a lot of space. It can’t bring back the detail the JPG had already lost, either: the photo doesn’t get any better. For a light file pick WebP or AVIF, or stay with JPG and use “Compress images”.
- Are the EXIF data and the photo’s orientation kept?
- Orientation, yes: a JPG shot in portrait comes out in portrait, because the rotation is applied to the pixels. EXIF data such as date, camera and location don’t carry over to the new file. The exception is files already in the chosen format, which are left untouched.
- Can I choose the quality or the background?
- Yes, under “Advanced options”. Quality starts at 82 out of 100 and applies to JPG, WebP and AVIF, while PNG is always lossless. The background choice, white or black, only appears when converting to JPG, which has to put a colour where the transparency was.
Your files are never uploaded. Anywhere.
Your file stays in your browser’s memory: it is read, processed and written back here. There is no server to send it to.
- Processed locallyEverything happens on your device.
- Nothing to upload, nothing to wait forNothing to upload, no waiting.
- No files to deleteWe keep nothing: nothing reaches us.