head to head · open source
jaeger vs fsmon
jaeger has 23,368 GitHub stars, 3,222 forks, 547 open issues and last shipped 2 days ago. fsmon has 1,032 stars, 162 forks, 21 open issues and last shipped 7 months ago. jaeger leads on adoption by 2,164% (23,368 vs 1,032 stars). jaeger is written in Go under Apache-2.0; fsmon is written in C under MIT. jaeger has attracted 14% as many forks as stars, fsmon 16%. jaeger was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (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.
← all 20902 open source comparisons
Side by side
| jaeger | fsmon | |
|---|---|---|
| GitHub stars | ★ 23K | ★ 1.0K |
| License | Apache-2.0 | MIT |
| Written in | Go | C |
| Last push | 2026-11-03 | 2026-04-11 |
| Forks | ⑂ 3.2K | ⑂ 162 |
| 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 fsmon if
- You want the fsmon feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C
- You evaluated both and fsmon 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 fsmon
fsmon Low level filesystem monitor utility for Linux, Android, iOS and macOS. Author : pancake @ nowsecure License : MIT Designed for System administrators and incident responders Security researchers and forensic analysts Developers debugging I/O heavy applications Reverse engineers interested in observing filesystem access behavior Installation On macOS you can now install it via brew with these commands: Alternatively just run make or pick the builds from the release page. Usage The tool retrieves file system events from a specific directory and shows them in colorful format or in JSON. It is possible to…
read the full fsmon overview →
More in Infrastructure & Operations
Related comparisons
More Monitoring & Observability projects
Compare either of these against the rest of the Monitoring & Observability field.
Frequently asked questions
Is jaeger or fsmon more popular?
jaeger has 23,368 GitHub stars and fsmon has 1,032. jaeger has the larger community by that measure.
Are jaeger and fsmon free?
Both are open source. jaeger is licensed under Apache-2.0 and fsmon under MIT. Neither carries a licence fee.
What is the difference between jaeger and fsmon?
jaeger is written in Go and fsmon in C. 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 fsmon?
Choose jaeger if you want the larger community (23,368 stars) or its Apache-2.0 licence terms. Choose fsmon if its feature set, stack or MIT licence fits better. Both are self-hostable.