A lightweight, lightning-fast, in-process vector database
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Updated
Sep 7, 2026 - C++
A lightweight, lightning-fast, in-process vector database
Next-generation full-text search library for Browser and Node.js
OceanBase is the unified distributed database for the AI era — open-source, multi-model, one engine for your most demanding workloads.
MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
Tiny and powerful JavaScript full-text search engine for browser and Node
todo.txt manager for Linux, Windows and Mac, free and open-source (FOSS)
A simple, fast and versatile Datalog database
Open Source research tool to search, browse, analyze and explore large document collections by Semantic Search Engine and Open Source Text Mining & Text Analytics platform (Integrates ETL for document processing, OCR for images & PDF, named entity recognition for persons, organizations & locations, metadata management by thesaurus & ontologies, …
RUM access method - inverted index with additional information in posting lists
Embeddable, in-memory, document-oriented database with a high-level Query builder interface.
Extremely fast faceted search engine in JavaScript - lightweight, flexible, and simple to use
A math-aware search engine.
Full-Featured ElasticSearch Ruby Client with a Chainable DSL
OramaCore is the complete runtime you need for your projects, answer engines, copilots, and search. It includes a fully-fledged full-text search engine, vector database, LLM interface, and many more utilities.
The high-performance .NET search engine based on pattern recognition.
A portable, persistent, electron-embeddable fulltext search + document store database for node.js
A lightweight, self-contained, RESTful, searchable, multi-format NoSQL document store.
Acts As Indexed is a plugin which provides a pain-free way to add fulltext search to your Ruby on Rails app
Elasticlunr is a small, full-text search library for use in the Elixir environment. It indexes JSON documents and provides a friendly search interface to retrieve documents.
A JavaFX based desktop search application.
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