head to head · open source
huginn vs mulog
huginn has 49,969 GitHub stars, 4,299 forks, 698 open issues and last shipped today. mulog has 540 stars, 49 forks, 12 open issues and last shipped 3 months ago. huginn leads on adoption by 9,154% (49,969 vs 540 stars). huginn is written in Ruby under MIT; mulog is written in Clojure under Apache-2.0. huginn has attracted 9% as many forks as stars, mulog 9%. 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 | mulog | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 540 |
| License | MIT | Apache-2.0 |
| Written in | Ruby | Clojure |
| Last push | 2026-09-18 | 2026-06-27 |
| Forks | ⑂ 4.3K | ⑂ 49 |
| 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 mulog if
- You want the mulog feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Clojure
- You evaluated both and mulog 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 mulog
μ/log μ/log (Pronounced: /mjuːlog/) is a micro logging library that logs events and data, not words! From the Greek letter μ , mu (Pronunciation: /mjuː/) The twelfth letter of the Greek alphabet (Μ, μ), often used as a prefix for micro which is 10 6 in the SI (System of Units). Lowercase letter " u " is often substituted for " μ " when the Greek character is not typographically available. (source: Features Here some features and key design decisions that make μ/log special: Effortlessly, logs events as data points. No need to construct strings that then need to be deconstructed later. Fast, extremely fast, under …
read the full mulog overview →
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Frequently asked questions
Is huginn or mulog more popular?
huginn has 49,969 GitHub stars and mulog has 540. huginn has the larger community by that measure.
Are huginn and mulog free?
Both are open source. huginn is licensed under MIT and mulog under Apache-2.0. Neither carries a licence fee.
What is the difference between huginn and mulog?
huginn is written in Ruby and mulog in Clojure. 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 mulog?
Choose huginn if you want the larger community (49,969 stars) or its MIT licence terms. Choose mulog if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.