Synchronet — Download and Install

Synchronet for Windows

• Installation instructions for Windows
• Development Update instructions
• Installer: sbbs321e.zip [ftp] [mirror] (22MB, March 17, 2026)
  SHA1: 931119632468959a00017e78e15cc2cbf2e5285a
  MD5: 3fc294ded3fc6af1ff0e703939f2a654
• Upgrade from v3.16 or later: sbup321e.zip [ftp] [mirror] (19MB, March 17, 2026)
  SHA1: fc78466a496fe6569d0006c4ea330e7ea3a54d0a
  MD5: 33c32b3d60aabe84d47d560d19c23d98

Synchronet for UNIX-like Platforms (Linux, FreeBSD)

• Installation instructions for Unix
• Installation instructions for Raspberry Pi
• Development Update instructions

• Latest verified-buildable source package for Win32: sbbs_src.zip [ftp] (27MB, April 19, 2026)
  SHA1: bba691f032186d357ab9cb6025167ff0a3dd60b8
  MD5: 928c87b94cc00ef328d146633343291d
• Latest verified-buildable source package for Linux-x64: sbbs_src.tgz [ftp] (34MB, April 19, 2026)
  SHA1: 06e30a99cc39829aefd23b522eab0f84ce858348
  MD5: e70b8272b545ba14da8b3786a6a84f09
• Current master (bleeding-edge development) branch from gitlab.synchro.net
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Synchronet for Legacy x86/PC Operating Systems

• v1a for MS-DOS, circa 1992
• v1b for MS-DOS, circa 1993
• v1c for MS-DOS, circa 1993
• v2.30 for MS-DOS and OS/2, circa 1995-1999

Vertrauen (Synchronet HQ) HTTP

• Official Synchronet Releases
• Archive of Historic Synchronet Releases

Vertrauen (Synchronet HQ) FTP

• vert.synchro.net
• cvs.synchro.net
• ftp.synchro.net (backup)