Open source llmops projects

Every project in the registry tagged llmops, ranked by real GitHub adoption.

projects 22 combined stars ★ 239K refresh nightly
01 LiteLLM ★ 59K

LLM gateway for auth, load balancing, and spend tracking

last push5 hours ago languagePython license
02 Langfuse ★ 35K

Open source LLM engineering platform for AI-powered applications

last push5 hours ago languageTypeScript license
03 promptfoo ★ 25K

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simpl

last push6 hours ago languageTypeScript licenseMIT
04 opik ★ 22K

Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready d

last push6 hours ago languagePython licenseApache-2.0
05 Portkey AI Gateway ★ 13K

Complete production stack for AI teams

last push4 months ago languageTypeScript licenseMIT
06 OpenLLM ★ 13K

Run any open-source LLMs, such as DeepSeek and Llama, as OpenAI compatible API endpoint in the cloud.

last push3 days ago languagePython licenseApache-2.0
07 bisheng ★ 12K

BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent,

last push11 hours ago languagePython licenseApache-2.0
08 Arize Phoenix ★ 12K

Open-source LLM tracing & evaluation for AI optimization

last push5 hours ago languagePython license
09 Bifrost ★ 8.1K

Ultra-fast AI gateway with enterprise-grade reliability

last push5 hours ago languageGo licenseApache-2.0
10 OpenLLMetry ★ 7.4K

Monitor LLM performance with open-source observability

last push6 hours ago languagePython licenseApache-2.0
11 Helicone ★ 6.2K

Build reliable AI apps with comprehensive observability

last push30 hours ago languageTypeScript licenseApache-2.0
12 giskard-oss ★ 5.8K

🐢 Open-Source Evaluation & Testing library for LLM Agents

last push40 hours ago languagePython licenseApache-2.0
13 LangWatch ★ 4.8K

Simulation-based testing and evaluation for AI agents

last push5 hours ago languageTypeScript licenseApache-2.0
14 lorax ★ 3.8K

Multi-LoRA inference server that scales to 1000s of fine-tuned LLMs

last push4 months ago languagePython licenseApache-2.0
15 Laminar ★ 3.3K

AI-powered platform for engineering LLM products

last push7 hours ago languageTypeScript licenseApache-2.0
16 burr ★ 2.6K

Build applications that make decisions (chatbots, agents, simulations, etc...). Monitor, trace, persist, and execute on your own infrastructure.

last push5 days ago languagePython licenseApache-2.0
17 envd ★ 2.2K

🏕️ Reproducible development environment for humans and agents

last push2 months ago languageGo licenseApache-2.0
18 future-agi ★ 2.0K

Open-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Gateway · Gu

last push11 hours ago languagePython licenseApache-2.0
19 waku-agent ★ 1.8K

Waku Waku! Waku Agent is a local-first AI agent harness you actually own, including loop, memory, eval, all in code built to stay legible as it grows.

last push7 hours ago languagePython licenseMIT
20 langtrace ★ 1.2K

Langtrace 🔍 is an open-source, Open Telemetry based end-to-end observability tool for LLM applications, providing real-time tracing, evaluations and metrics f

last push10 months ago languageTypeScript licenseAGPL-3.0
21 Spanlens ★ 13

LLM observability: cost, latency, and traces in one place

last push4 days ago languageTypeScript licenseMIT
22 Grepture ★ 8

Trace, evaluate, and protect every LLM call in one SDK

last push23 days ago languageTypeScript licenseAGPL-3.0

Related tags

← all tags

Frequently asked questions

How many open source llmops projects are there?

This registry tracks 22 projects tagged llmops, with 239,427 GitHub stars between them. The most-adopted is LiteLLM at 59,003 stars.

Are these llmops projects free to use?

Yes — 19 of the 22 carry an explicit open-source licence across 3 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which llmops project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these llmops projects still maintained?

19 of the 22 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.