head to head · open source
huginn vs opentelemetry-js
huginn has 49,969 GitHub stars, 4,299 forks, 698 open issues and last shipped today. opentelemetry-js has 3,471 stars, 1,164 forks, 235 open issues and last shipped yesterday. huginn leads on adoption by 1,340% (49,969 vs 3,471 stars). huginn is written in Ruby under MIT; opentelemetry-js is written in TypeScript under Apache-2.0. huginn has attracted 9% as many forks as stars, opentelemetry-js 34%. 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 | opentelemetry-js | |
|---|---|---|
| GitHub stars | ★ 50K | ★ 3.5K |
| License | MIT | Apache-2.0 |
| Written in | Ruby | TypeScript |
| Last push | 2026-09-18 | 2026-09-17 |
| Forks | ⑂ 4.3K | ⑂ 1.2K |
| 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 opentelemetry-js if
- You want the opentelemetry-js feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and opentelemetry-js 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 opentelemetry-js
Getting Started • API and SDK Reference Contributing • Examples About this project This is the JavaScript version of OpenTelemetry, a framework for collecting traces, metrics, and logs from applications. Quick Start Much of OpenTelemetry JS documentation is written assuming the compiled application is run as CommonJS. For more details on ECMAScript Modules vs CommonJS, refer to esm support. The following describes how to set up tracing for a basic web application. For more detailed documentation, see the website at . Installation Dependencies with the latest tag on NPM should be compatible with each oth…
read the full opentelemetry-js overview →
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Frequently asked questions
Is huginn or opentelemetry-js more popular?
huginn has 49,969 GitHub stars and opentelemetry-js has 3,471. huginn has the larger community by that measure.
Are huginn and opentelemetry-js free?
Both are open source. huginn is licensed under MIT and opentelemetry-js under Apache-2.0. Neither carries a licence fee.
What is the difference between huginn and opentelemetry-js?
huginn is written in Ruby and opentelemetry-js in TypeScript. 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 opentelemetry-js?
Choose huginn if you want the larger community (49,969 stars) or its MIT licence terms. Choose opentelemetry-js if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.