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

Apache-2.0

Java

Fess

Powerful and easily deployable Enterprise Search Server.

Apache-2.0

Java

OpenSearch

Distributed and RESTful search engine.

Apache-2.0

Java

Yacy

Peer based, decentralized search engine server.

GPL-2.0

Java

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.

MIT

Docker

Amgix

Amgix (a-MAG-ix) is a modular distributed hybrid search system

AGPL-3.0

Docker