1.pgvector / pgvector
Open-source vector similarity search for Postgres
- nearest-neighbor-search
- approximate-nearest-neighbor-search
+1,152 stars
from 22,422 · score 7.05
Trending repositories
Ranked by Attention Score: stars gained over the last 90 complete days
4 repositories by Attention Score · Aug 6, 2026 – Nov 3, 2026 (UTC)
2.weaviate / weaviate
Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.
- search-engine
- semantic-search
- semantic-search-engine
- vector-search
- vector-search-engine
- vector-database
- +14 more
+290 stars
from 16,644 · score 5.67
3.oramasearch / orama
🌌 A complete search engine and RAG pipeline in your browser, server or edge network with support for full-text, vector, and hybrid search in less than 2kb.
- data-structures
- full-text
- search
- typo-tolerance
- algiorithm
- search-engine
- +9 more
+120 stars
from 10,476 · score 4.80
4.flann-lib / flann
Fast Library for Approximate Nearest Neighbors
+11 stars
from 2,370 · score 2.48