Haystack
Free
An open-source framework from deepset for building search and RAG pipelines for production.
open source AI tools
AI tools tagged open source, newest first.
47 tools
LlamaIndex
Freemium
A framework and cloud for connecting language models to your documents and data.
Vespa
Freemium
A search and recommendation engine that combines vector, text and structured queries at scale.
LanceDB
Freemium
An embedded, open-source vector database that stores data in a fast columnar format.
Chroma
Freemium
A simple open-source vector database that is popular for prototypes and local AI apps.
Milvus
Free
A popular open-source vector database built to handle billions of vectors.
Qdrant
Freemium
A high-performance open-source vector database written in Rust.
Weaviate
Freemium
An open-source vector database with hybrid search and built-in AI modules.
MLflow
Free
The open-source standard for managing the machine learning lifecycle, now with GenAI tracing.
Hugging Face
Freemium
The main hub for open models, datasets and demos, plus tools to train and deploy them.
Agenta
Freemium
An open-source LLMOps platform for prompt playgrounds, evaluation and observability.
Promptfoo
Freemium
An open-source tool for testing prompts and red-teaming AI apps from the command line.
