Free and Open Source, Distributed, RESTful Search Engine
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For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.
An open-source engine that turns continuous content streams into search and monitoring. Durable ingestion, hybrid search, alerts, and plugins for formats, models and business rules.
React Hooks for Data Fetching
- react
- hook
- data-fetching
- swr
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
- search-engine
- search
- typo-tolerance
- site-search
The open-source database for the realtime web.
Open-source vector similarity search for Postgres
- nearest-neighbor-search
- approximate-nearest-neighbor-search
📊 Cube Core is open-source semantic layer for AI, BI and embedded analytics
An open source cybersecurity protocol for syncing decentralized graph data.
ZincSearch . A lightweight alternative to elasticsearch that requires minimal resources, written in Go.
- go
- golang
- search
- searchengine
QuestDB is a high performance, open-source, time-series database
- time-series
- low-latency
- database
- sql
libSQL is a fork of SQLite that is both Open Source, and Open Contributions.
Weaviate is an open-source vector database that stores both objects and vectors, allowing for the combination of vector search with structured filtering with the fault tolerance and scalability of a cloud-native database.
- search-engine
- semantic-search
- semantic-search-engine
- vector-search
FoundationDB - the open source, distributed, transactional key-value store
- key-value-store
- transactional
- acid
- distributed-database
A 100% free modern JS SaaS boilerplate (React, NodeJS, Prisma). Full-featured: Auth (email, google, github, slack, MS), Email sending, Background jobs, Landing page, Payments (Stripe, Polar.sh), Shadcn UI, S3 file upload. AI-ready with tailored AGENTS.md, skills, and Claude Code plugin. One cmd deploy. Powered by Wasp full-stack framework.
- full-stack
- open-source
- saas
- nodejs
An open-source graph database
- graph
- graph-database
- cayley
- go
🔎 Open source distributed and RESTful search engine.
- search
- search-engine
- analytics
- java
Next-generation full-text search library for Browser and Node.js
- search
- search-algorithm
- search-engine
- searching-algorithms
MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.
A distributed, fast open-source graph database featuring horizontal scalability and high availability
Open-source search database for full-text, vector, and hybrid search with real-time indexing and SQL.
- search-engine
- search
- mysql
- sphinxsearch
Cloud-native OSS search engine for observability
- rust
- log-management
- logs
- tantivy
An open source multi-tool for exploring and publishing data
A truly Open Source MongoDB alternative
- mongodb
- mongo
- mongodb-database
- mongo-db