head to head · open source
jaeger vs coze-loop
jaeger has 23,223 GitHub stars, 3,122 forks, 547 open issues and last shipped 2 days ago. coze-loop has 5,739 stars, 795 forks, 84 open issues and last shipped 2 days ago. jaeger leads on adoption by 305% (23,223 vs 5,739 stars). jaeger is written in Go under Apache-2.0; coze-loop is written in Go under Apache-2.0. jaeger has attracted 13% as many forks as stars, coze-loop 14%. coze-loop 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
| jaeger | coze-loop | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 5.7K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Go |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 3.1K | ⑂ 795 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick jaeger if
- You weight community size — 23K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick coze-loop if
- You want the coze-loop 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 coze-loop fits your workflow better
About jaeger
Jaeger is a distributed tracing platform hosted by the Cloud Native Computing Foundation (CNCF), where it graduated as the 7th top level project in October 2019. It was originally created by Uber Technologies and then donated to the CNCF. The project is written in Go and released under the Apache 2.0 license, and it lives in the OpenTelemetry and observability ecosystem: it consumes traces from OpenTelemetry SDKs and reuses components from the OpenTelemetry Collector. Its repository carries topics including cncf, distributed tracing, jaeger, observability, opentelemetry and tracing, and the project is openly gove…
read the full jaeger overview →
About coze-loop
Coze Loop is a developer oriented, open source, platform level solution for the full lifecycle management of AI agents — covering prompt development, debugging, evaluation, and observability — aimed at developers and teams who build and operate AI agents.
read the full coze-loop overview →
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Frequently asked questions
Is jaeger or coze-loop more popular?
jaeger has 23,223 GitHub stars and coze-loop has 5,739. jaeger has the larger community by that measure.
Are jaeger and coze-loop free?
Both are open source. jaeger is licensed under Apache-2.0 and coze-loop under Apache-2.0. Neither carries a licence fee.
What is the difference between jaeger and coze-loop?
jaeger is written in Go and coze-loop 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, jaeger or coze-loop?
Choose jaeger if you want the larger community (23,223 stars) or its Apache-2.0 licence terms. Choose coze-loop if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.