Text Steganography

Hide Text In Image

Embed secret messages inside standard image files without changing their appearance.

1 Cover Image

Image to hide text in

2 Secret Message

0 characters Capacity: OK

What is Text-to-Image Steganography?

It's a digital security technique where secret text messages are encrypted and embedded inside the pixels of an image file. Unlike visible watermarks, this data is hidden in the "noise" of the image (the Least Significant Bits), making the modified image look identical to the original. It's a powerful way to send secret notes, passwords, or copyright info securely.

Binary Encryption

Your text is converted into binary (0s and 1s) and injected directly into the color channels of the image pixels.

Zero Trace

Since the changes are microscopic, automated scanners and human eyes often cannot detect that the image contains a message.

Browser Logic

Just like our other tools, this runs entirely in your browser. Your secret messages never touch our servers.

Frequently Asked Questions

How much text can I hide?
It depends on the image size. A standard 1920x1080 image has over 2 million pixels. We can store roughly 3 bits per pixel, meaning you can hide huge amounts of text (entire books) inside a single photo.
Will the image quality drop?
Not noticeably. We only change the "Least Significant Bit", which alters a color value by 1/255th. This change is mathematically present but visually indistinguishable to the human eye.
Can I use any image format?
You can upload JPG, PNG, or WEBP. However, the result must be downloaded as **PNG** to preserve the secret data. If you convert it back to JPG, the compression will "smooth out" the noise where your text is hidden, deleting the message.
Logo TolyBox

© 2026 TolyBox Inc.