Convert any image, any format

Convert between JPG, PNG, WebP, BMP, ICO and more. Everything runs in your browser. Your files never leave your device.

FromTo

Drop images here, click to choose, or paste

JPG, PNG, WebP, GIF, BMP or SVG. Up to 50 images, max 50 MB each.

Quality85Smaller fileHigher quality

Background colorFills transparent areas, because this format has no transparency.

Private

Your files stay on your device. Nothing is uploaded.

No queue, no waiting for uploads. Instant browser-side conversion.

No signup, no limits, no watermarks.

Designed mobile-first. Works smoothly on Android and iPhone.

1Pick a converterChoose the one that matches what you need from the list above. PNG to JPG, image to WebP, anything in between.
2Upload your fileOn the converter page, drag your file or click to pick it. Adjust quality or background color if needed.
3Download the resultConversion runs in your browser. No signup, no upload to a server. Your file is ready in seconds.

Is Zelio really free?

Yes. There is no signup, no paid tier, and no limit on how many images you can convert.

Do my files get uploaded to a server?

No. All conversion happens locally in your browser using the Canvas API. Your files never leave your device.

What formats do you support?

Input: JPG, PNG, WebP, GIF, BMP, SVG. Output: JPG, PNG, WebP, BMP, ICO. HEIC, AVIF, and TIFF are coming in a later phase.

Is there a file size limit?

Yes. The application limit is 50MB per file. Beyond that, browser memory makes conversion unreliable.