head to head · open source
jaeger vs 0xtools
jaeger has 23,223 GitHub stars, 3,122 forks, 547 open issues and last shipped 2 days ago. 0xtools has 1,820 stars, 134 forks, 17 open issues and last shipped 10 months ago. jaeger leads on adoption by 1,176% (23,223 vs 1,820 stars). jaeger is written in Go under Apache-2.0; 0xtools is written in Python under GPL-2.0. jaeger has attracted 13% as many forks as stars, 0xtools 7%. jaeger was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (observability), 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
| jaeger | 0xtools | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 1.8K |
| License | Apache-2.0 | GPL-2.0 |
| Written in | Go | Python |
| Last push | 2026-09-18 | 2025-11-25 |
| Forks | ⑂ 3.1K | ⑂ 134 |
| 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 0xtools if
- You want the 0xtools feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches Python
- You evaluated both and 0xtools 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 0xtools
0x.Tools is a GPL 2.0 Linux performance and observability toolkit, listed in this registry as Python, that gives engineers an X ray view of what every thread on a running system is actually doing, from kernel space up.
read the full 0xtools overview →
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Frequently asked questions
Is jaeger or 0xtools more popular?
jaeger has 23,223 GitHub stars and 0xtools has 1,820. jaeger has the larger community by that measure.
Are jaeger and 0xtools free?
Both are open source. jaeger is licensed under Apache-2.0 and 0xtools under GPL-2.0. Neither carries a licence fee.
What is the difference between jaeger and 0xtools?
jaeger is written in Go and 0xtools in Python. 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 0xtools?
Choose jaeger if you want the larger community (23,223 stars) or its Apache-2.0 licence terms. Choose 0xtools if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.