head to head · open source
huginn vs tracing
huginn has 49,967 GitHub stars, 4,298 forks, 698 open issues and last shipped 2 days ago. tracing has 6,877 stars, 932 forks, 887 open issues and last shipped 4 months ago. huginn leads on adoption by 627% (49,967 vs 6,877 stars). huginn is written in Ruby under MIT; tracing is written in Rust under MIT. huginn has attracted 9% as many forks as stars, tracing 14%. huginn was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| huginn | tracing | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 6.9K |
| License | MIT | MIT |
| Written in | Ruby | Rust |
| Last push | 2026-09-16 | 2026-05-30 |
| Forks | ⑂ 4.3K | ⑂ 932 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick huginn if
- You weight community size — 50K stars and counting
- You want the MIT license terms
- Your stack matches Ruby
- You value the larger contributor base for long-term maintenance
pick tracing if
- You want the tracing feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Rust
- You evaluated both and tracing fits your workflow better
About huginn
Huginn is an open source system for building agents that perform automated tasks online, written in Ruby and released under the MIT license. Its agents read the web, watch for events, and take actions on the user's behalf. Internally, agents create and consume events that propagate along a directed graph, which means one agent's output becomes another agent's input and a chain of small steps can be composed into a larger workflow. The project lives in the Ruby ecosystem and is distributed as an official Docker image or installed locally from a forked repository.
read the full huginn overview →
About tracing
tracing is a Rust framework for instrumenting programs to collect structured, event based diagnostic information, and it is aimed at Rust developers and library authors who need observability beyond plain text log lines.
read the full tracing overview →
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Frequently asked questions
Is huginn or tracing more popular?
huginn has 49,967 GitHub stars and tracing has 6,877. huginn has the larger community by that measure.
Are huginn and tracing free?
Both are open source. huginn is licensed under MIT and tracing under MIT. Neither carries a licence fee.
What is the difference between huginn and tracing?
huginn is written in Ruby and tracing in Rust. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, huginn or tracing?
Choose huginn if you want the larger community (49,967 stars) or its MIT licence terms. Choose tracing if its feature set, stack or MIT licence fits better. Both are self-hostable.