pgvector
Andrew Kane (pgvector project) · Vector databases
PostgreSQL extension adding vector types, distance operators and HNSW/IVFFlat indexes for similarity search inside the database
PostgreSQLOpen sourceFreeSelf-hostedNov 2, 2026
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Redis
Redis Ltd. · NoSQL & key-value stores
In-memory key-value data store used as cache, message broker and database, with data structures, Pub/Sub, Streams and, since Redis 8, built-in JSON, search and time-series modules
LicenseRef-RSALv2 OR SSPL-1.0 OR AGPL-3.0-onlyOpen sourceFreeSelf-hostedNov 2, 2026
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