GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger, and a file transfer utility. Also included is a URL-distribution and search tool.

● English Manual:
● Deutsches Handbuch:
● Audit: BIG SEVEN Study

● Source:

● Compiling-Info:

● GoldBug has Server-Software included and also works with the Android Chat Server "SmokeStack" under:

By 2017-09-30 the project test server has been discarded, please learn to set up your own crypto chat server or use the POPTASTIC function (crypto chat over IMAP/POP3 servers)


  • Authenticated and encrypted SQLite and PostgreSQL URL databases.
  • Authenticated encryption.
  • Bluetooth connectivity.
  • Chat.
  • Custom URL rules.
  • Custom servers.
  • Custom thread priorities.
  • DSA, ECDSA, EdDSA, ElGamal, NTRU, McEliece, RSA.
  • Distributed URL system.
  • Distributed e-mail system.
  • Echo public-key distribution system.
  • File Sharing.
  • Free and open source. BSD license.
  • FreeBSD, Linux, Mac, OS/2, Windows support.
  • Groupchat IRC-style.
  • Instant Messenger.
  • IMAP, POP3, SMTP via Poptastic.
  • Integrated file encryption tool.
  • McEliece cryptographic system.
  • Multithreaded kernel.
  • Offline e-mail system.
  • Optional and configurable SSL/TLS.
  • PowerPC support.
  • Private group communications.
  • RSS feeder.
  • Raspberry Pi.
  • Remote accounts system.
  • Qt 4.7.x, 4.8.x, 5.x.
  • Rosetta offline encryption pad.
  • Separated kernel and user interface processes.
  • Simple software firewall.
  • StarBeam file sharing.
  • Threefish CBC.
  • UDP multicasting.
  • Websearch.

Project Samples

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BSD License

Follow GoldBug - Encrypted Communications

GoldBug - Encrypted Communications Web Site

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Additional Project Details


Thai, English, Portuguese, Chinese (Traditional), Hindi, Brazilian Portuguese, Chinese (Simplified), German, Spanish, Russian

Intended Audience

Science/Research, Advanced End Users, Developers, End Users/Desktop, Security Professionals, Security

User Interface


Programming Language


Database Environment

PostgreSQL (pgsql), SQLite