OU

OutGuess

Universal steganographic tool that hides information in redundant bits of data sources, with support for PNM and JPEG image formats.
Latest: 0.4 Wikidata
Last checked: Apr 13, 2026 12:05pm
Rank: 8839/15140
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Overview

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License: BSD licenseInstaller: Source code archive

Version & Lifecycle

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Current: 0.4 Oldest supported: 0.2 Avg cadence: Unmaintained

Top Contributors

Top sitewide contributors:

  1. Anbarasan
  2. nico_k
  3. Bob
  4. Vigneshwaran

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Release Notes & Updates

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Also known as

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OutGuessNiels Provos OutGuess

Packaging Notes

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Available in Debian and Arch Linux repositories. Tested on OpenBSD, Linux, Solaris, and AIX. Win32 portable version available.

Notes

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Originally developed in Germany in 1999 by Niels Provos. Written in C and published as Free Software. Can hide multiple messages (up to 2) providing plausible deniability. Uses Golay code for error correction.