head to head · open source
jaeger vs loongsuite-go
jaeger has 23,368 GitHub stars, 3,222 forks, 547 open issues and last shipped 2 days ago. loongsuite-go has 907 stars, 131 forks, 30 open issues and last shipped 17 days ago. jaeger leads on adoption by 2,476% (23,368 vs 907 stars). jaeger is written in Go under Apache-2.0; loongsuite-go is written in Go under Apache-2.0. jaeger has attracted 14% as many forks as stars, loongsuite-go 14%. jaeger was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 3 topic tags (observability, opentelemetry, tracing), 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 | loongsuite-go | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 907 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Go | Go |
| Last push | 2026-11-03 | 2026-10-19 |
| Forks | ⑂ 3.2K | ⑂ 131 |
| 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 loongsuite-go if
- You want the loongsuite-go 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 loongsuite-go fits your workflow better
About jaeger
[![Slack chat][slack img]]( get in touch) [![Unit Tests][ci img]][ci] [![Coverage Status][cov img]][cov] [![Project+Community stats][community badge]][community stats] [![FOSSA Status][fossa img]][fossa] [![OpenSSF Scorecard][openssf img]][openssf] [![OpenSSF Best Practices][openssf bp img]][openssf bp] [![CLOMonitor][clomonitor img]][clomonitor] [![Artifact Hub][artifacthub img]][artifacthub] Jaeger a Distributed Tracing System 💥💥💥 Jaeger v2 is out! Read the blog post and try it out. Quick Start Get Jaeger running in seconds with Docker: For production deployments and more options, see the Getting Started…
read the full jaeger overview →
About loongsuite-go
Loongsuite Go Agent provides an automatic solution for Golang applications that want to leverage OpenTelemetry to enable effective observability. No code changes are required in the target application, the instrumentation is done at compile time. Simply adding otel prefix to go build to get started :rocket: Installation [!IMPORTANT] Requires Go 1.25 or newer. loongsuite go pins OpenTelemetry v1.45.0, and the OTel modules declare go 1.25.0 from v1.42.0 onward. Since the tool injects those modules into the application it instruments, both the tool and the instrumented application need Go 1.25+. See compatibility…
read the full loongsuite-go overview →
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Frequently asked questions
Is jaeger or loongsuite-go more popular?
jaeger has 23,368 GitHub stars and loongsuite-go has 907. jaeger has the larger community by that measure.
Are jaeger and loongsuite-go free?
Both are open source. jaeger is licensed under Apache-2.0 and loongsuite-go under Apache-2.0. Neither carries a licence fee.
What is the difference between jaeger and loongsuite-go?
jaeger is written in Go and loongsuite-go 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 loongsuite-go?
Choose jaeger if you want the larger community (23,368 stars) or its Apache-2.0 licence terms. Choose loongsuite-go if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.