filecast

gistrec·gistrec.filecast

Send a file to every machine on your LAN at once over UDP broadcast/multicast.

filecast is a cross-platform command-line tool that sends a single file to every host on the same LAN at once, using UDP broadcast or IP multicast, with automatic retransmission of dropped packets. One sender reaches any number of receivers in the time of a single transfer. It verifies each file end-to-end with SHA-256, resumes interrupted receives, and needs no server, relay, or internet connection.

winget install --id gistrec.filecast --exact --source winget

Latest 1.0.1·July 7, 2026

Release Notes

What's Changed

  • Use the lowercase gistrec/filecast repo name in links and install.sh by @gistrec in #21
  • Document the Homebrew tap and link the encryption issue by @gistrec in #23
  • Enforce no-clobber atomically and give main() sole ownership of the socket by @gistrec in #24
  • Reject control/NUL bytes in sanitizeName by @gistrec in #26
  • Use disk-backed transfer storage by @gistrec in #25
  • Add disk-full E2E test for the write-failure cleanup branch by @gistrec in #27
  • Don't delete cwd .part files when receive times out before ANNOUNCE by @gistrec in #28
  • Bound part-metadata memory with a bitmap and a lazy sender map by @gistrec in #29
  • Propagate durable flush/close errors from closePartFile by @gistrec in #30
  • [Security review][M1] Reject same-session ANNOUNCE that would reset or hijack a transfer by @gistrec in #31
  • [Security review][L4] Undeliverable datagrams silently strand transfers at large --mtu by @gistrec in #33
  • [Security review][L7] Reject reserved device names with trailing spaces/dots by @gistrec in #35
  • [Security review][L3] Reject pre-planted hardlinks when opening .part files by @gistrec in #32
  • [Security review][L5] Exit non-zero when the sender can't reach the kernel by @gistrec in #36
  • [Security review][L1] Bound the receive wait and resend phase on a wall-clock deadline by @gistrec in #37
  • [Security review][L6] Use steady_clock for RESEND rate-limiting by @gistrec in #34
  • Reject symlinks and hardlinks on Windows when opening .part files by @gistrec in #39
  • Harden pre-latch ANNOUNCE handling and bound resend/ttl edge cases by @gistrec in #40
  • Pre-release hardening, doc-sync, and repo hygiene by @gistrec in #41 Full Changelog: v1.0.0...v1.0.1

Installer type: portable

ArchitectureScopeDownloadSHA256
x64Download21AF25B61CE3279089138CB38526CC998DC79C6D7177983026B30B8B0AE9AC2E

Details

Homepage
https://github.com/gistrec/filecast
License
MIT
Publisher
gistrec
Support
https://github.com/gistrec/filecast/issues
Moniker
filecast

Tags

broadcastclifile-transferlanmulticastnetworkingudp

Older versions (1)

1.0.0
ArchitectureScopeDownloadSHA256
x64DownloadD084600EC4E8410FA99BA5B9A39DF837214456B1A62827C8F4135D0EB0114F19