# Langfuse: Free Open Source Alternative to Arize, Braintrust, Eden AI

Canonical: https://caniforkit.com/fork/langfuse
Last updated: 2026-11-07

Langfuse (Open Source, Open Source) replaces Arize, Braintrust, Eden AI, Galileo. Langfuse provides tracing, evaluations, prompt management, and analytics to debug and improve LLM applications.

## Tool Specifications
- **Tool Name**: Langfuse
- **Type**: Open Source Project
- **License**: Open Source
- **Official Website**: https://langfuse.com/
- **GitHub Repository**: https://github.com/langfuse/langfuse
- **GitHub Stars**: ★ 37.1k
- **Runs On**: Self-host
- **Maintenance Status**: nov 2026
- **Platforms**: web, self-hosted, docker to self-host
- **Data Storage**: All application data and configuration live on your own server or local database.
- **Installation**: Clone https://github.com/langfuse/langfuse or deploy with Docker Compose
- **Setup Requirements**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **The Catch / Limitation**: Requires self-hosting setup, updates, and server maintenance compared to managed Arize.

## Paid SaaS Applications Replaced (9)
Replacing these paid tools with Langfuse saves up to $305/mo ($3,660/yr) in software subscriptions:

| Replaced Software | Category | SaaS Price | Comparison Guide |
| --- | --- | --- | --- |
| [Arize](https://caniforkit.com/arize) | [analytics](https://caniforkit.com/category/analytics) | $35/mo | [Compare Arize vs Langfuse](https://caniforkit.com/vs/arize-vs-langfuse) |
| [Braintrust](https://caniforkit.com/braintrust) | [analytics](https://caniforkit.com/category/analytics) | $35/mo | [Compare Braintrust vs Langfuse](https://caniforkit.com/vs/braintrust-vs-langfuse) |
| [Eden AI](https://caniforkit.com/eden-ai) | [dev tools](https://caniforkit.com/category/dev-tools) | $25/mo | [Compare Eden AI vs Langfuse](https://caniforkit.com/vs/eden-ai-vs-langfuse) |
| [Galileo](https://caniforkit.com/galileo) | [analytics](https://caniforkit.com/category/analytics) | $35/mo | [Compare Galileo vs Langfuse](https://caniforkit.com/vs/galileo-vs-langfuse) |
| [Humanloop](https://caniforkit.com/humanloop) | [analytics](https://caniforkit.com/category/analytics) | $35/mo | [Compare Humanloop vs Langfuse](https://caniforkit.com/vs/humanloop-vs-langfuse) |
| [LangChain](https://caniforkit.com/langchain) | [analytics](https://caniforkit.com/category/analytics) | $35/mo | [Compare LangChain vs Langfuse](https://caniforkit.com/vs/langchain-vs-langfuse) |
| [LangSmith](https://caniforkit.com/langsmith) | [analytics](https://caniforkit.com/category/analytics) | $35/mo | [Compare LangSmith vs Langfuse](https://caniforkit.com/vs/langsmith-vs-langfuse) |
| [Maxim](https://caniforkit.com/maxim) | [analytics](https://caniforkit.com/category/analytics) | $35/mo | [Compare Maxim vs Langfuse](https://caniforkit.com/vs/maxim-vs-langfuse) |
| [Weights and Biases](https://caniforkit.com/weights-and-biases) | [analytics](https://caniforkit.com/category/analytics) | $35/mo | [Compare Weights and Biases vs Langfuse](https://caniforkit.com/vs/weights-and-biases-vs-langfuse) |

## Frequently Asked 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 is the trade-off or limitation of using Langfuse?
Requires self-hosting setup, updates, and server maintenance compared to managed Arize.

## Related

- [Self-Hosted Open Source Directory](https://caniforkit.com/self-hosted)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Software Categories Directory](https://caniforkit.com/categories)
- [Homepage](https://caniforkit.com)