Search GitHub Repositories (2026) · Open Source Tools

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

⚡A CLI tool for code structural search, lint and rewriting. Written in Rust

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/

🔎 Open source distributed and RESTful search engine.

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

🤖 A client-first, server-capable, fully type-safe router and full-stack framework for the web (React and more).

Instant fuzzy find any file on macOS

A modern, high-performance local file search and productivity tool for Windows. A sleek, customizable alternative to Everything and Listary built with C# WPF and NT Services, featuring instant NTFS MFT parsing, real-time USN monitoring, and plugin support.

:mag: Quick file search & app launcher for Windows with community-made plugins

Search inside documents, code, and even screenshots - instantly and locally. A free, open-source file launcher with OCR, semantic search, and MCP agent access.

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.

All Algorithms implemented in Java

Spotlight-style local search for everything you saved and forgot: GitHub stars, local files, images, and bookmarks. Privacy-first, no full-disk scanning, fully on-device.

The AI search platform

Apache Lucene open-source search software

SeekStorm: vector & lexical search - in-process library & multi-tenancy server, in Rust.

💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows

Apache Doris is a real-time analytics and hybrid search database for AI agents.

Long-document search with Jev and PageIndex

Open-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.