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Tag #embeddings

Chroma

Chroma

Chroma

Open-source embedding database for RAG — store vectors and query by similarity in a few lines.

v1.5.92026-05-05PythonApache-2.0
29.2k Open source Free tier Paid
Exa

Exa

Exa

Neural web search API for agents — semantic search plus full page contents in one call

v2.20.02026-09-01Python / TypeScriptProprietary
233 Free tier Paid
LanceDB

LanceDB

LanceDB

Embedded vector database built on the Lance columnar format — serverless and local-first

v0.38.02026-08-31Rust / PythonApache-2.0
11.4k Open source Free tier Paid
Milvus

Milvus

Zilliz

Open-source vector database built for billion-scale similarity search

v3.0.02026-07-29GoApache-2.0
46.0k Open source Free tier Paid

pgvector

pgvector

Postgres extension for vector similarity search — add agent memory and RAG without a separate database.

v0.8.62026-07-29SQL / CPostgreSQL
22.9k Completely free Open source
Qdrant

Qdrant

Qdrant

High-performance open-source vector database for similarity search and agent memory

v1.19.12026-09-04RustApache-2.0
34.4k Open source Free tier Paid

Run embedding models locally (e.g. bge-m3) to turn text into vectors for RAG and memory — no API.

v6.0.12026-08-31PythonApache-2.0
19.1k Completely free Open source
Weaviate

Weaviate

Weaviate

Open-source vector database with hybrid search, filtering, and built-in vectorizers

v1.39.22026-08-26GoBSD-3-Clause
16.8k Open source Free tier Paid