- elasticsearch by elastic, 79k stars. Distributed RESTful search and analytics engine written in Java
- ripgrep by BurntSushi, 70k stars. Fast recursive regex search that respects gitignore rules
- faiss by facebookresearch, 42k stars. Library for fast nearest-neighbor search over dense vectors
- searxng by searxng, 40k stars. Privacy-respecting metasearch engine that aggregates results from many sources
- qdrant by qdrant, 36k stars. High-performance vector database and similarity search engine written in Rust
- onyx by onyx-dot-app, 33k stars. AI chat and enterprise search that works with many LLM providers
- qmd by tobi, 31k stars. Local command-line search engine for docs, notes and knowledge bases
- karakeep by karakeep-app, 31k stars. Self-hostable bookmark manager for links, notes and images with AI tagging
- typesense by typesense, 27k stars. In-memory search engine with typo tolerance, written in C++
- xerj by xerj-org, 19k stars. Single Rust binary for full-text, vector and hybrid search with an MCP server
- turbovec by RyanCodrai, 17k stars. Vector index in Rust with Python bindings for nearest neighbor search
- zvec by alibaba, 16k stars. Embedded in-process vector database with HNSW indexing
- doris by apache, 16k stars. Real-time analytical SQL database with hybrid search support
- Flow.Launcher by Flow-Launcher, 16k stars. Windows file search and app launcher with a plugin system
- manticoresearch by manticoresoftware, 12k stars. Full-text, vector and hybrid search engine with real-time indexing and SQL access
- fff by dmtrKovalenko, 11k stars. Fast file search SDK with bindings for Neovim, Python, Bun, and Node
- PixelRAG by StarTrail-org, 11k stars. Research code for searching web pages as images instead of parsing text
- databend by databendlabs, 9.5k stars. Cloud data warehouse in Rust for analytics, search and Python workloads on S3
- tubearchivist by tubearchivist, 8.6k stars. Self-hosted YouTube archive with search, downloads and a media server
- server by MariaDB, 8.6k stars. Community fork of MySQL with full-text search, JSON and multiple storage engines
- librephotos by LibrePhotos, 8.2k stars. Self-hosted photo gallery with machine learning tagging and search
- R2R by SciPhi-AI, 8.1k stars. RAG API server with agentic retrieval, document ingestion and search
- semble by MinishLab, 6.4k stars. Code search for coding agents that uses far fewer tokens than grep and read
- DigUp by ARahim3, 6.4k stars. On-device search over photos, PDFs, recordings, and code using embeddings
- helix-db by HelixDB, 6.3k stars. Graph database with built in vector and full text search, written in Rust
- hister by asciimoo, 6.3k stars. Personal search engine over your browsing history with an MCP interface
- wigolo by KnockOutEZ, 5.5k stars. Local-first web search, fetch and crawl over MCP for coding agents
- hyperresearch by jordan-gibbs, 4.8k stars. Turns Claude Code or Codex into a deep research agent with a persistent wiki
- sentrysearch by ssrajadh, 4.6k stars. Semantic search over video files using Gemini or Qwen3-VL embeddings
- zvec-grep by zvec-ai, 4.3k stars. Local BM25 search over code and files with a CLI for humans and agents
- Windrecorder by yuka-friends, 4.0k stars. Records screen activity and makes it searchable by OCR text and image descriptions
- AnyCrawl by any4ai, 3.5k stars. Node.js crawler that turns sites and search results into structured data
- freehire by strelov1, 3.5k stars. Open-source job search engine that aggregates listings from company career pages
- jevgrep by dzhng, 3.2k stars. Code search CLI that finds files by describing what the code does
- cocoindex-code by cocoindex-io, 3.0k stars. Lightweight AST-based code search CLI for coding agents
- vmodal_sdk_flutter by v-modal, 2.2k stars. Flutter SDK for visual search across video and image content
- zoekt by sourcegraph, 2.1k stars. Fast trigram-based code search engine for large repositories
- deja-vu by vshulcz, 1.6k stars. Local memory and history search across coding agents via an MCP server
- ctx by ctxrs, 1.2k stars. Searches the history of coding agent sessions already stored on your machine
- kividb by kividbio, 1.1k stars. Multi-threaded Redis and Valkey compatible server with vector search
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