head to head · open source
Langfuse vs server
Langfuse has 36,970 GitHub stars, 4,150 forks, 926 open issues and last shipped today. server has 8,524 stars, 2,267 forks, 495 open issues and last shipped today. Langfuse leads on adoption by 334% (36,970 vs 8,524 stars). Langfuse is written in TypeScript under a custom or non-standard licence; server is written in C++ under GPL-2.0. Langfuse has attracted 11% as many forks as stars, server 27%. Langfuse 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
| Langfuse | server | |
|---|---|---|
| GitHub stars | ★ 37K | ★ 8.5K |
| License | Custom / other | GPL-2.0 |
| Written in | TypeScript | C++ |
| Last push | 2026-11-04 | 2026-11-04 |
| Forks | ⑂ 4.2K | ⑂ 2.3K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Langfuse if
- You weight community size — 37K stars and counting
- You want the Custom / other license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick server if
- You want the server feature set and don't need the biggest community
- You prefer the GPL-2.0 license terms
- Your stack matches C++
- You evaluated both and server fits your workflow better
About Langfuse
Langfuse Cloud · Self Host · Demo Docs · Report Bug · Feature Request · Changelog · Roadmap · Langfuse is an open source LLM engineering platform. It helps teams collaboratively develop, monitor, evaluate, and debug AI applications. Langfuse can be self hosted in minutes and is battle tested . Proudly made with ClickHouse open source database. 🧑💻 We're hiring Langfuse is growing fast (we doubled the team in the last 6 months) since January 2026 we're part of ClickHouse, we're hiring engineering hybrid across the EU. We hire engineers who love open source and great developer experiences. See open roles → ✨…
read the full Langfuse overview →
About server
MariaDB Server MariaDB Server is one of the most widely deployed open source relational databases. It is built by a global community of contributors together with the MariaDB Foundation and MariaDB plc, and it powers workloads from small applications to large scale production systems. MariaDB began as a fork of MySQL, led by the original MySQL developers, and it maintains a high degree of MySQL compatibility. It has since grown into a database with its own capabilities, including native vector search, multiple pluggable storage engines, synchronous clustering, and analytical features, while remaining a…
read the full server overview →
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Frequently asked questions
Is Langfuse or server more popular?
Langfuse has 36,970 GitHub stars and server has 8,524. Langfuse has the larger community by that measure.
Are Langfuse and server free?
Both are open source. Langfuse has no licence declared in this registry, and server is licensed under GPL-2.0. Both are free to self-host.
What is the difference between Langfuse and server?
Langfuse is written in TypeScript and server 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, Langfuse or server?
Choose Langfuse if you want the larger community (36,970 stars) or its Custom / other licence terms. Choose server if its feature set, stack or GPL-2.0 licence fits better. Both are self-hostable.