Open Source Projects tagged "Search"
A curated collection of the best open source projects tagged "Search". Each listing includes a website screenshot along with a detailed review of its features.
Lightning-fast search for your applications
Stars
59,793Last commit
19 hours agoLicense
MIT
A powerful, fast, and easy-to-use search engine that delivers instant and relevant results for your websites and applications.
Open Source Alternative to:
Privacy-first metasearch across 270+ sources
Stars
Stars growing over the last 30 days39,250Last commit
17 hours agoLicense
AGPL-3.0
Self-hostable metasearch engine that aggregates results from 270+ sources without tracking or profiling users, with optional JavaScript and Tor support.
Open Source Alternative to:
Fast, scalable vector database for AI applications
Stars
35,440Last commit
11 hours agoLicense
Apache-2.0
Qdrant is an open-source vector database that provides high-performance similarity search for AI and machine learning applications.
Open Source Alternative to:
Lightning-fast, typo-tolerant search engine for all
Stars
27,091Last commit
2 days agoLicense
GPL-3.0
Open-source search solution offering blazing speed, typo tolerance, and effortless scalability for developers and businesses.
Open Source Alternative to:
Open-source search and analytics at enterprise scale
Stars
13,964Last commit
14 hours agoLicense
Apache-2.0
Community-driven, Apache 2.0-licensed search and analytics suite for ingesting, searching, visualizing, and analyzing data at scale with AI/ML capabilities.
Open Source Alternative to:
Lightning-fast open source search engine for big data
Stars
12,075Last commit
12 hours agoLicense
GPL-3.0
Open source search database delivering 2.83x faster performance than Elasticsearch. Features vector search, SQL interface, and full-text capabilities.
Open Source Alternative to:
Full-text & vector search at the edge.
Stars
10,600Last commit
19 days agoLicense
Unknown
Blend full-text and semantic search for unlimited queries across 300 global locations. Get precise answers and matches at a flat rate, no matter your search volume.
Open Source Alternative to:
Get instant answers from your company knowledge
Stars
3,050Last commit
10 days agoLicense
Apache-2.0
AI-powered search and RAG platform that connects to 100+ enterprise tools without data migration. Deploy securely on-premises with any LLM.
Open Source Alternative to:
Full-text search API with real-time indexing and crawling
Stars
1,935Last commit
5 days agoLicense
Apache-2.0
Cloud search API and crawler service supporting billions of documents, real-time indexing, autocomplete, faceted filtering, and multi-language text across any application.
Open Source Alternative to:
Open-source message stream built on Postgres
Stars
2,225Last commit
9 months agoLicense
MIT
Sequin offers a feature-rich messaging system with a simple HTTP API, providing RabbitMQ-like functionality without adding complexity to your stack.
Open Source Alternative to:
Self-hosted SERP API for Google, Bing, Yandex, and more
Stars
Stars growing over the last 30 days1,553Last commit
3 days agoLicense
MIT
Query Google, Bing, Yandex, Baidu, DuckDuckGo, and Ecosia through one REST API. Self-host free under MIT, or use the managed cloud option.
Open Source Alternative to:
Sent – Messaging Infrastructure for Developers. One API for SMS, WhatsApp, and RCS across 190+ countries.
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