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

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

Next-generation full-text search library for Browser and Node.js

Easy to use open source fast database for search | Good alternative to Elasticsearch now | Drop-in replacement for E in the ELK stack

A bit like Solr, but much smaller and not as bright

Simple, Elastic-quality search for Postgres

A supercharged version of paperless: scan, index and archive all your physical documents

Browser extension to curate, annotate, and discuss the most valuable content and ideas on the web. As individuals, teams and communities.

The AI-native database built for LLM applications, providing incredibly fast hybrid search of dense vector, sparse vector, tensor (multi-vector), and full-text.

Fast Open-Source Search & Clustering engine × for Vectors & Arbitrary Objects × in C++, C, Python, JavaScript, Rust, Java, Objective-C, Swift, C#, GoLang, and Wolfram 🔍

ACID Document Database

A fully featured full text search engine written in PHP

PostgreSQL extension for BM25 relevance-ranked full-text search. Postgres OSS licensed.

A portable accelerated SQL query, search, and LLM-inference engine, written in Rust, for data-grounded AI apps and agents.

SeekStorm - sub-millisecond full-text search library & multi-tenancy server in Rust

RadonDB is an open source, cloud-native MySQL database for building global, scalable cloud services

YouTube Full Text Search - Search all of YouTube from the command line

Universal personal search engine, powered by a full text search algorithm written in pure Ink, indexing Linus's blogs and private note archives, contacts, tweets, and over a decade of journals.

Lightweight Python utilities for working with Redis

Fess is very powerful and easily deployable Enterprise Search Server.

Lite & Super-fast re-ranking for your search & retrieval pipelines. Supports SoTA Listwise and Pairwise reranking based on LLMs and cross-encoders and more. Created by Prithivi Da, open for PRs & Collaborations.

An embeddable fulltext search engine. Groonga is the successor project to Senna.

High performance Chinese tokenizer with both GBK and UTF-8 charset support based on MMSEG algorithm developed by ANSI C. Completely based on modular implementation and can be easily embedded in other programs, like: MySQL, PostgreSQL, PHP, etc.

Simple, index-free full-text search for JavaScript

A cutting-edge search engine project tailored specifically for the AI product

A PostgreSQL-backed archive generator that creates browsable HTML archives from link aggregator platforms including Reddit, Voat, and Ruqqus.

A course catalog with extremely fast full-text search

RESTful search server written in Python, powered by SQLite.

web interface for recoll desktop search

Typikon lets you use markdown to write your online books.