head to head · open source
huginn vs jupiter
huginn has 49,969 GitHub stars, 4,299 forks, 698 open issues and last shipped today. jupiter has 4,566 stars, 708 forks, 16 open issues and last shipped yesterday. huginn leads on adoption by 994% (49,969 vs 4,566 stars). huginn is written in Ruby under MIT; jupiter is written in Go under Apache-2.0. huginn has attracted 9% as many forks as stars, jupiter 16%. 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 | jupiter | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 4.6K |
| License | MIT | Apache-2.0 |
| Written in | Ruby | Go |
| Last push | 2026-09-18 | 2026-09-17 |
| Forks | ⑂ 4.3K | ⑂ 708 |
| 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 jupiter if
- You want the jupiter 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 jupiter 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 jupiter
Jupiter is an Apache 2.0 governance oriented microservice framework written in Go that is used in production at Douyu, aimed at Go teams that want configuration, service discovery, metrics, tracing and RPC handled by the framework instead of by glue code in every service.
read the full jupiter overview →
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Frequently asked questions
Is huginn or jupiter more popular?
huginn has 49,969 GitHub stars and jupiter has 4,566. huginn has the larger community by that measure.
Are huginn and jupiter free?
Both are open source. huginn is licensed under MIT and jupiter under Apache-2.0. Neither carries a licence fee.
What is the difference between huginn and jupiter?
huginn is written in Ruby and jupiter 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 jupiter?
Choose huginn if you want the larger community (49,969 stars) or its MIT licence terms. Choose jupiter if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.