HNSWLib
OPEN SOURCE
A library for efficient approximate nearest neighbor search.
About
HNSWLib is an open-source library for efficient approximate nearest neighbor search. It provides a range of features for vector search and similarity matching, making it suitable for large-scale applications.
Pricing
Pricing Type
Open Source
Free tier available
Billing
Custom pricing
Last checked: February 20, 2026
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Key Facts
Categories
Platforms
Self-Hosted
Company
HNSWLib
Founded
Founded in 2018
Country
Global
Language
English