Langfuse
Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.
Technical Profile & Specs
verified 2026-11-07
- Cost
- $0 / forever (Open Source)
- License
- Open Source
- Hosting Model
- Self-host (your server)
- Platforms
- webself-hosteddocker to self-host
- Installation
- Clone https://github.com/langfuse/langfuse or deploy with Docker Compose
- Operational Setup
- Deploy via Docker or binary release from GitHub and configure environment variables.
- Where Your Data Lives
- All application data and configuration live on your own server or local database.
- The Catch / Trade-off
- Requires self-hosting setup, updates, and server maintenance compared to managed Arize.
Replaces 9 paid apps
up to $305/mo ($3,660/yr) in subscriptions
Langfuse FAQ
Common questions
Is Langfuse free and open source?+
Langfuse is an open-source tool licensed under Open Source that runs on self-host. Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.
What paid software does Langfuse replace?+
Langfuse serves as a free replacement for 9 paid SaaS applications: Arize, Braintrust, Eden AI, Galileo, Humanloop, LangChain, LangSmith, Maxim, Weights and Biases, saving up to $305/month ($3,660/year) in subscription bills.
How do you install and set up Langfuse?+
Installation: Clone https://github.com/langfuse/langfuse or deploy with Docker Compose. Setup notes: Deploy via Docker or binary release from GitHub and configure environment variables.
What is the catch or trade-off with Langfuse?+
Requires self-hosting setup, updates, and server maintenance compared to managed Arize.