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Open Source Search Engines Software

Found 13 self-hosted alternatives in this category.

MIT

Aleph

Tool for indexing large amounts of both documents (PDF, Word, HTML) and structured (CSV, XLS, SQL) data for easy browsing and search. It is built with investigative reporting as a primary use case. ([Demo](https://aleph.occrp.org/), [Source Code](https://github.com/alephdata/aleph))

WebsiteSource
Apache-2.0

Apache Solr

Enterprise search platform featuring full-text search, hit highlighting, faceted search, real-time indexing, dynamic clustering, and rich document (e.g., Word, PDF) handling

WebsiteSource
Apache-2.0

Fess

Powerful and easily deployable Enterprise Search Server. ([Demo](https://search.n2sm.co.jp/), [Source Code](https://github.com/codelibs/fess))

WebsiteSource
Apache-2.0

Jina

Cloud-native neural search framework for any kind of data

WebsiteSource
GPL-3.0

Manticore Search

Full-text search and data analytics, with fast response time for small, medium and big data (alternative to Elasticsearch)

WebsiteSource
MIT

MeiliSearch

Ultra relevant, instant and typo-tolerant full-text search API

WebsiteSource
Apache-2.0

Meme Search

AI-powered meme search engine. Automatically extracts descriptions from images using vision-language models, then indexes with vector embeddings for semantic and keyword search

WebsiteSource
Apache-2.0

OpenSearch

Distributed and RESTful search engine

WebsiteSource
GPL-3.0

sist2

Lightning-fast file system indexer and search tool

WebsiteSource
AGPL-3.0

Sosse

Selenium based search engine and crawler with offline archiving

WebsiteSource
GPL-3.0

Typesense

Blazing fast, typo-tolerant open source search engine optimized for developer happiness and ease of use

WebsiteSource
GPL-2.0

Yacy

Peer based, decentralized search engine server

WebsiteSource
Apache-2.0

ZincSearch

Search engine that requires minimal resources (alternative to Elasticsearch). ([Demo](https://github.com/zinclabs/zinc#playground-server), [Source Code](https://github.com/zincsearch/zincsearch))

WebsiteSource