Hide Text in an Image

Why hide text in an image?

Hiding text inside a picture lets you send a private note in plain sight. The image looks like an ordinary photo, so nobody scanning it would guess it carries words at all. It is a fun way to pass secret messages, watermark your own work invisibly, or tuck a note into a picture you are already sharing.

This tool writes your message into the least-significant bit of each pixel, a change so tiny the eye cannot see it. Add a password and the message is encrypted first, so even if someone suspects there is hidden data, they cannot read it without the key.

How to hide text in an image

1. Open your image. Drag a photo onto the tool above, choose a file, or paste from your clipboard.
2. Type your message. Enter the secret text. A capacity meter shows how much will fit, and you can add a password to encrypt it.
3. Hide and download. Click Hide message, then download the PNG — it looks identical but secretly carries your text.

Always keep the PNG

The download is a PNG because PNG is lossless and preserves every pixel — and therefore your hidden bits. If you re-save it as a JPG or run it through a service that re-compresses images, the message is erased. Share the PNG file directly.