compresso
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Convert HEIC to JPEG in your browser

Compresso is one of the few tools that accepts HEIC input directly in the browser. Safari decodes natively; other browsers lazy-load a WASM decoder. Output JPEG, WebP, or AVIF — all locally.

Open the free app

How it works

  1. Open Compresso and drop your .heic file.
  2. Choose JPEG or Auto format.
  3. Download the converted image — nothing was uploaded.

Common questions

Does it work on Windows and Android?
Yes. Non-Safari browsers load a WASM HEIC decoder on first use.
Will the JPEG be larger than the HEIC?
Compresso guarantees lossy output never exceeds the source size.

For developers

Embed compression in your upload flow:

npm install compresso.js
npm · Docs

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