#logging #re-run #debug-log #helper

re_log

Helpers for setting up and doing text logging in the Rerun crates

300 releases (29 breaking)

Uses new Rust 2024

new 0.31.3 Apr 14, 2026
0.31.1 Mar 31, 2026
0.28.1 Dec 19, 2025
0.28.0-alpha.0 Nov 21, 2025
0.4.0 Mar 28, 2023

#1035 in Debugging

Download history 4601/week @ 2025-12-28 27962/week @ 2026-01-04 23107/week @ 2026-01-11 22699/week @ 2026-01-18 24832/week @ 2026-01-25 24481/week @ 2026-02-01 25394/week @ 2026-02-08 16840/week @ 2026-02-15 24914/week @ 2026-02-22 27275/week @ 2026-03-01 25966/week @ 2026-03-08 26182/week @ 2026-03-15 31885/week @ 2026-03-22 34004/week @ 2026-03-29 27880/week @ 2026-04-05 29614/week @ 2026-04-12

124,725 downloads per month
Used in 174 crates (83 directly)

MIT/Apache

39KB
557 lines

Text logging (nothing to do with rerun logging) for use in rerun libraries.

Provides helpers for adding multiple loggers, and for setting up logging on native and on web.

  • trace: spammy things
  • debug: things that might be useful when debugging
  • info: things that we want to show to users
  • warn: problems that we can recover from
  • error: problems that lead to loss of functionality or data

The warn_once etc macros are for when you want to suppress repeated logging of the exact same message.

In the viewer these logs, if >= info, become notifications. See re_ui::notifications for more information.


re_log

Part of the rerun family of crates.

Latest version Documentation MIT Apache

Helpers for setting up and doing text logging in the Rerun crates.

Dependencies

~5–11MB
~113K SLoC