# Langfuse

> Open-source LLM engineering platform with prompt management, tracing and evals.

- Official site: https://langfuse.com
- Category: Prompt Management & Testing
- Pricing: Open Source
- Works with: Most LLM providers
- Tags: open source, versioning, tracing
- Listed on TellPrompt: https://tellprompt.com/tool/langfuse

## About

Langfuse lets teams version prompts, deploy them with labels such as production or staging, and trace how they behave in live apps. It can be self-hosted or used as a cloud service.

A popular choice for teams that want open source and data control.