fuzzer.Try it

Scramble photos with a password.

Fuzzer shuffles a photo into unreadable blocks. Send it anywhere. Only people with the password can put it back together, even after a messaging app has compressed it and stripped its metadata.

Coming soon to iOS and Android. Try it in your browser in the meantime.

  1. 1

    Pick a photo

    Take one with the camera or choose one from your library. Fuzzer spots locked photos and switches to Unlock for you.

  2. 2

    Enter a password

    Add a message for the banner if you like. Locking sweeps the scramble down the picture. Unlocking plays it in reverse.

  3. 3

    Save or share

    You get an ordinary JPEG. Post it anywhere. Anyone with the password can unlock any copy.

See it in action

Choose a photoor drop or paste one here

Try it yourself

Built to survive the internet

Survives messaging apps

Blocks are 8×8 pixels, lined up with JPEG’s own blocks, so recompression barely touches them. Color bleed at the edges is repaired on unlock.

Nothing hidden in metadata

The key comes from the password alone. Strip the EXIF, re-encode it, forward it five times: it still unlocks.

No accounts, no servers

Everything happens on your device. There is nothing to sign up for and nothing to upload.

Web and app agree

This page runs the same format as the app. Lock a photo here and unlock it on your phone, or the other way round.