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AI search engine and MCP server for bots and agents. One Rust binary indexes code, docs, logs, JSONL/CSV and PDFs for BM25 full-text, vector and hybrid search, code search without grep, agent memory and RAG. Elasticsearch-compatible API; Corpus Hub serves hundreds of reference memory corpora.
Search engine aggregator with a comprehensive plugin/extension system
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/
Tantivy is a full-text search engine library inspired by Apache Lucene and written in Rust
The First Real-Time Search Analytics Database
🔎 Open source distributed and RESTful search engine.
A lightweight, lightning-fast, in-process vector database
One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.
Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.
Yet another awesome browser extension for switching search engines, search everything (selection text / image / link / find in page) on any engine with a simple right click or a variety of menus and shortcuts. Build with React & Material-UI. (WIP).
Blocks specific sites from appearing in Google search results
Embedded retrieval library built on Parquet. Fast, efficient, and scalable.
Cloud-native OSS search engine for observability
The AI search platform
Apache Lucene open-source search software
SeekStorm: vector & lexical search - in-process library & multi-tenancy server, in Rust.
An open source, non-profit web search engine
💡 All-in-one AI framework for semantic search, LLM orchestration and language model workflows
Open-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.
SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.