Are my images uploaded anywhere?

No. Every tool runs inside your browser using Web Workers and WebAssembly. Files never leave your device, and there is no server, account or tracking.

AVIF is smaller and supports HDR, but encodes slowly and is not supported by very old browsers. WebP is the safe default.

Can I convert HEIC photos from my iPhone?

Safari decodes HEIC natively, so it works there. Other browsers cannot open HEIC yet.

Convert format

Convert between JPG, PNG, WebP and AVIF. Pick a background color when dropping transparency.

or drop files here, or paste from your clipboard

JPG, PNG, WebP, AVIF, GIF, BMP · processed on your device

How to convert format online without uploading

Switch formats in bulk. WebP and AVIF give the smallest files for the web, PNG keeps transparency and JPG works everywhere.

1Drop your images
2Pick the target format and quality
3Choose a background color if transparency is dropped
4Download

Frequently asked questions

Are my images uploaded anywhere?: No. Every tool runs inside your browser using Web Workers and WebAssembly. Files never leave your device, and there is no server, account or tracking.
WebP or AVIF?: AVIF is smaller and supports HDR, but encodes slowly and is not supported by very old browsers. WebP is the safe default.
Can I convert HEIC photos from my iPhone?: Safari decodes HEIC natively, so it works there. Other browsers cannot open HEIC yet.