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TcpreplayBit-Twist
Free

Free and open source under the GPLv3.

 Free

Free and open source under GPL-2.0-or-later.

Command line Windows, macOS, Linux, Command line
  • Replays captures at original timing, a set rate or line rate
  • Rewrites addresses, ports, VLAN tags and checksums
  • Replays and edits captured PCAP traffic
  • Can generate packets from built-in templates
  • Command-line only, with no graphical interface
  • Requires existing packet captures to work from
  • Windows builds require Npcap
Downloadable app Downloadable app
Open source Open source
License: GPL-3.0 License: GPL-2.0-or-later
No account needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 23, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.