# USearch

> USearch is a lightweight, header-only C++ library for ANN search with HNSW and scalar quantization, optimized for low RAM and high-speed on CPU. It supports binary and custom metrics for edge devices. Compared to Faiss, USearch is simpler, faster on small datasets, and embeddable without deps.

- **URL:** https://github.com/unum-cloud/usearch
- **Category:** ANN Indexing Libraries
- **Tags:** Pure ANN, Index Only, Benchmark Tool, Low Ram, Header Only, Cpu Optimized
- **Updated:** 2026-04-29 11:31
- **Canonical page:** https://vectordb.ever.works/es/items/usearch

## Details

## Overview

C++ library with Python bindings for vector search.

## Features

- HNSW index
- Multiple metrics
- Single header

## Pricing

Free and open-source.

---

_This Markdown mirror is generated by Ever Works for AI agents. The canonical HTML page is at https://vectordb.ever.works/es/items/usearch._