head to head · open source
huginn vs pyrra
huginn has 50,269 GitHub stars, 4,339 forks, 698 open issues and last shipped yesterday. pyrra has 1,568 stars, 154 forks, 83 open issues and last shipped yesterday. huginn leads on adoption by 3,106% (50,269 vs 1,568 stars). huginn is written in Ruby under MIT; pyrra is written in Go under Apache-2.0. huginn has attracted 9% as many forks as stars, pyrra 10%. huginn was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (monitoring), so they are genuine substitutes rather than adjacent tools.
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 | pyrra | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 1.6K |
| License | MIT | Apache-2.0 |
| Written in | Ruby | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 4.3K | ⑂ 154 |
| 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 pyrra if
- You want the pyrra feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and pyrra fits your workflow better
About huginn
What is Huginn? Huginn is a system for building agents that perform automated tasks for you online. They can read the web, watch for events, and take actions on your behalf. Huginn's Agents create and consume events, propagating them along a directed graph. Think of it as a hackable version of IFTTT or Zapier on your own server. You always know who has your data. You do. Here are some of the things that you can do with Huginn: Track the weather and get an email when it's going to rain (or snow) tomorrow ("Don't forget your umbrella!") List terms that you care about and receive email when their occurrence on…
read the full huginn overview →
About pyrra
Making SLOs with Prometheus manageable, accessible, and easy to use for everyone! Dashboards to visualize SLOs in Grafana: Watch the 5min lightning talk at Prometheus Day 2022: Features Support for Kubernetes, Docker, and reading from the filesystem Alerting: Generates 4 Multi Burn Rate Alerts with different severity Page listing all Service Level Objectives Search through names and labels Sorted by remaining error budget to see the worst ones quickly All columns sortable View and hide individual columns Clicking on labels to filter SLOs that contain the label Tool tips when hovering for extra context Page with…
read the full pyrra overview →
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Frequently asked questions
Is huginn or pyrra more popular?
huginn has 50,269 GitHub stars and pyrra has 1,568. huginn has the larger community by that measure.
Are huginn and pyrra free?
Both are open source. huginn is licensed under MIT and pyrra under Apache-2.0. Neither carries a licence fee.
What is the difference between huginn and pyrra?
huginn is written in Ruby and pyrra in Go. 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 pyrra?
Choose huginn if you want the larger community (50,269 stars) or its MIT licence terms. Choose pyrra if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.