Best Open Source search Libraries

A curated list of the most popular GitHub repositories tagged with search. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.

#1TheAlgorithms/Java

All Algorithms implemented in Java

65,084Java

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#2BurntSushi/ripgrep

ripgrep recursively searches directories for a regex pattern while respecting your gitignore

60,151Rust

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#3meilisearch/meilisearch

A lightning-fast search engine API bringing AI-powered hybrid search to your sites and applications.

56,011Rust

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#4sharkdp/fd

A simple, fast and user-friendly alternative to 'find'

41,729Rust

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#5jaywcjlove/linux-command

Linux命令大全搜索工具，内容包含Linux命令手册、详解、学习、搜集。https://git.io/linux

35,536Markdown

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#6TheAlgorithms/JavaScript

Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.

34,065JavaScript

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#7TheAlgorithms/C-Plus-Plus

Collection of various algorithms in mathematics, machine learning, computer science and physics implemented in C++ for educational purposes.

33,867C++

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#8qdrant/qdrant

Qdrant - High-performance, massive-scale Vector Database and Vector Search Engine for the next generation of AI. Also available in the cloud https://cloud.qdrant.io/

28,981Rust

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#9eugeneyan/applied-ml

📚 Papers & tech blogs by companies sharing their work on data science & machine learning in production.

28,694

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#10assafelovic/gpt-researcher

An autonomous agent that conducts deep research on any data using any LLM providers.

25,371Python

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#11keon/algorithms

Minimal examples of data structures and algorithms in Python

25,308Python

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#12typesense/typesense

Open Source alternative to Algolia + Pinecone and an Easier-to-Use alternative to ElasticSearch ⚡ 🔍 ✨ Fast, typo tolerant, in-memory fuzzy Search Engine for building delightful search experiences

25,255C++

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#13searxng/searxng

SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.

25,199Python

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#14TheAlgorithms/C

Collection of various algorithms in mathematics, machine learning, computer science, physics, etc implemented in C for educational purposes.

21,734C

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#15valeriansaliou/sonic

🦔 Fast, lightweight & schema-less search backend. An alternative to Elasticsearch that runs on a few MBs of RAM.

21,138Rust

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#16mikeroyal/Self-Hosting-Guide

Self-Hosting Guide. Learn all about locally hosting (on premises & private web servers) and managing software applications by yourself or your organization. Including Cloud, LLMs, WireGuard, Automation, Home Assistant, and Networking.

18,702Dockerfile

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#17TheAlgorithms/Go

Algorithms and Data Structures implemented in Go for beginners, following best practices.

17,831Go

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#18zincsearch/zincsearch

ZincSearch . A lightweight alternative to elasticsearch that requires minimal resources, written in Go.

17,742Go

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#19arc53/DocsGPT

Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

17,716Python

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