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pgvector

Open-source vector similarity search for Postgres.

Visit pgvector » github.com/pgvector/pgvector

pgvector at a glance
What it doesOpen-source vector similarity search for Postgres
CategoryDeveloper
Websitegithub.com/pgvector/pgvector
CheckedWebsite working when last checked (2026-10-16)

In their own words

“Open-source vector similarity search for Postgres. Contribute to pgvector/pgvector development by creating an account on GitHub.”
— from the pgvector website

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  1. Try it on your real codebase, not a demo. Results vary a lot by language and project size.
  2. Decide how much control you want: suggestions you accept line by line, or an agent that makes larger changes for you to review.
  3. Check your company's rules on sending code to outside AI services before you start.

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