- Pricing
- Paid
- Platform
- Web
- Open source
- Yes
About Langfuse
Langfuse is an open-source platform for tracing, monitoring, and debugging LLM applications. It captures traces of prompts, completions, and tool calls to help teams detect issues, measure costs, and improve quality. It also offers prompt versioning and A/B testing, making it a comprehensive LLMOps tool for engineering teams.
Specifications
Everything we hold on this listing.
- Category
- Coding & Dev Tools
- Pricing
- Paid
- Platforms
- Web
- Website
- langfuse.com
- Open source
- Yes
- Added
- Apr 23, 2026
- Source
- awesome
opensource, platform, tags were inferred from this tool's own description, not confirmed by its maker. Claim this listing to correct it.
How Langfuse compares
The closest tools in the directory, matched on shared capability rather than category alone.
| Tool | Pricing | API | Open source |
|---|---|---|---|
| Langfuse | Paid | Not stated | Yes |
| Opik | Paid | Not stated | Yes |
| Agenta | Paid | Not stated | Yes |
| Helicone AI | Paid | Not stated | Yes |
| Phoenix | Paid | Not stated | Yes |
Frequently asked
What is Langfuse used for?
Langfuse is an open-source platform for tracing, monitoring, and debugging LLM applications. It captures traces of prompts, completions, and tool calls to help teams detect issues, measure costs, and improve quality. It also offers prompt versioning and A/B testing, making it a comprehensive LLMOps tool for engineering teams.
Is Langfuse free?
Langfuse is Paid. Paid tool. Visit the site to view current pricing plans.
What platforms does Langfuse run on?
Langfuse runs on Web. Whether it offers a public API isn't stated, check the vendor's docs before planning an integration.
Is Langfuse open source?
Yes, Langfuse publishes its source, so you can self-host it, audit what it does with your data, and avoid per-seat pricing. Browse more open-source options at brofindai.com/tags/open-source.
What are the best alternatives to Langfuse?
The closest alternatives are Opik, Agenta, Helicone AI, Phoenix, all coding & dev tools tools that overlap with Langfuse on coding, developer, debugging. See the full list at brofindai.com/alternatives/langfuse.
