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Langfuse

Open source LLM engineering platform. Debug, analyze and iterate together.
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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.

Langfuse Overview Video

Learn more

See the langfuse/langfuse readme and docs for more details.

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  1. langfuse Public

    🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

    TypeScript 14.1k 1.3k

  2. langfuse-docs Public

    🪢 Langfuse documentation -- Langfuse is the open source LLM Engineering Platform. Observability, evals, prompt management, playground and metrics to debug and improve LLM apps

    Jupyter Notebook 128 112

Repositories

Showing 10 of 18 repositories
  • langfuse Public

    🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

    TypeScript 14,067 1,287 245 (4 issues need help) 114 Updated Jul 24, 2025
  • langfuse-docs Public

    🪢 Langfuse documentation -- Langfuse is the open source LLM Engineering Platform. Observability, evals, prompt management, playground and metrics to debug and improve LLM apps

    Jupyter Notebook 128 MIT 112 10 24 Updated Jul 24, 2025
  • langfuse-js Public

    🪢 Langfuse JS/TS SDKs - Instrument your LLM app and get detailed tracing/observability. Works with any LLM or framework

    TypeScript 68 MIT 59 1 25 Updated Jul 24, 2025
  • langfuse-python Public

    🪢 Langfuse Python SDK - Instrument your LLM app with decorators or low-level SDK and get detailed tracing/observability. Works with any LLM or framework

    Python 219 MIT 159 1 15 Updated Jul 24, 2025
  • langfuse-k8s Public

    Community-maintained Kubernetes config and Helm chart for Langfuse

    Smarty 136 MIT 92 12 7 Updated Jul 17, 2025
  • langfuse-examples Public

    Examples on how to deploy and use Langfuse

    Java 5 MIT 1 0 0 Updated Jul 15, 2025
  • nextjs-boilerplate Public
    TypeScript 0 0 0 0 Updated Jul 11, 2025
  • langfuse-terraform-aws Public

    🪢 Terraform module to deploy Langfuse on AWS

    HCL 25 MIT 13 2 0 Updated Jul 10, 2025
  • n8n-nodes-langfuse Public

    n8n.io node for Langfuse (Prompt Management)

    JavaScript 15 MIT 1 1 0 Updated Jul 8, 2025
  • langfuse-terraform-azure Public

    🪢 Terraform module to deploy Langfuse on Azure

    HCL 19 MIT 10 0 1 Updated Jul 8, 2025
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