Langfuse is an open-source LLM engineering platform designed to debug and improve LLM applications.
It offers key features such as:
- Traces: Detailed tracking of LLM application workflows.
- Evals: Evaluation tools to assess the performance of LLM applications.
- Prompt Management: Tools for managing and optimizing prompts.
- Metrics: Collection and analysis of key performance indicators.
Langfuse integrates with popular frameworks and tools like Langchain, OpenAI, LlamaIndex, and LiteLLM, making it suitable for developers and teams building complex LLM-powered applications. It supports both cloud and self-hosting options, catering to different security and compliance needs.

