OutGuess-style Web Steganography

A clean, browser-only stego tool inspired by the classic OutGuess workflow.

Mode

Passphrase

Cover image (JPEG only)

Payload (any file)

Output filename

Cover size:

—

Payload size:

—

Progressive JPEG:

—

Preflight:

—

idle

Output

Ready.

Tips: Avoid platforms that re-compress JPEGs (social apps, some CMS pipelines). Re-saving can destroy hidden data. Use large, high-quality photos. If capacity looks low, zip your payload first.