1.pgvector / pgvector
Open-source vector similarity search for Postgres
- nearest-neighbor-search
- approximate-nearest-neighbor-search
+70 stars
from 23,504 · score 4.26
Trending repositories
Ranked by Attention Score: stars gained over the last 7 complete days
4 repositories by Attention Score · Oct 28, 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
+11 stars
from 16,923 · score 2.48
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
+10 stars
from 10,586 · score 2.40
4.flann-lib / flann
Fast Library for Approximate Nearest Neighbors
+2 stars
from 2,379 · score 1.10