Can anyone tell that an image contains a hidden message?

To the human eye, the image appears 100% identical. LSB steganography modifies only the lowest-order bit of color channels, resulting in imperceptible sub-1% pixel variance.

Why must the carrier and stego image be exported as PNG?

Lossy compression formats like JPEG alter pixel values to reduce file size, which destroys the embedded bitstream. Lossless PNG preserves pixel values bit-for-bit.

Can I add a password to the hidden message?

Yes. Adding an optional passphrase encrypts the payload before embedding, ensuring only recipients with the secret key can decode the revealed text.

Can anyone tell that an image contains a hidden message?

To the human eye, the image appears 100% identical. LSB steganography modifies only the lowest-order bit of color channels, resulting in imperceptible sub-1% pixel variance.

Why must the carrier and stego image be exported as PNG?

Lossy compression formats like JPEG alter pixel values to reduce file size, which destroys the embedded bitstream. Lossless PNG preserves pixel values bit-for-bit.

Can I add a password to the hidden message?

Yes. Adding an optional passphrase encrypts the payload before embedding, ensuring only recipients with the secret key can decode the revealed text.

Free Client-Side Image Steganography (Hide & Reveal)

SecurityOffline Ready · Zero Uploads

Invisibly encode confidential notes, passphrases, and text payloads into the least significant bits of image pixels. Export lossless stego-PNGs with zero cloud uploads.

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