Hide a message
inside a picture.

Your text goes into the tiniest colour detail of a photo: every colour value changes by at most one step, so the picture looks identical. Add a password and it's encrypted (AES-256): pick a strong one.

Hide a message →

How it works

  1. 1

    Pick a picture

    Any photo; the result is a PNG.

  2. 2

    Write the message

    Add a password if you like (AES-256).

  3. 3

    Send the file

    The other person opens it on the Read tab.

Keep the message safe

  • Send the PNG as a file. Apps that shrink or re-save photos wipe the message.
  • There's no way to recover a lost password.
  • Our photo checker spots messages made here, so it's secret, not undetectable.

Questions

Is it free?

Yes. It runs in your browser, so your pictures are never uploaded.

More tricks

Game Boy photo filter, four greens and big pixels.

Turn any photo into a Game Boy picture: four greens, chunky pixels and proper dithering. Also C64, NES, PICO-8 and CGA palettes. Free, in your browser.

Duotone photos, in two colours you choose.

Make a two-colour duotone from any photo, like a gig poster or album cover. Pick presets or your own shadow and highlight colours. Free, in your browser.

Glitch effect, broken on purpose.

Give any photo a glitch look: split the colours, shift slices sideways, add pixel sorting and scanlines. Free, in your browser, and shuffle for a new glitch each time.

QR codes with your picture, checked before you download.

Make a QR code with your logo or photo built in. High error correction keeps it readable, and every code is test-scanned in your browser before you download.

Magic Eye maker: hide 3D text in dots.

Make your own Magic Eye picture (autostereogram) from text, a shape or a depth map, with random dots or a pattern from your own photo. Free, in your browser.

Red/cyan 3D photos for paper 3D glasses.

Turn a photo into a red/cyan 3D picture for paper 3D glasses. Use your own depth map, or let it guess depth from the photo. Free, in your browser.