OpenSearchServer is an open source application server allowing development of index-based applications like search engines. Main features of OpenSearchServer are : An integrated crawler for databases, web pages and rich documents; a user friendly GUI allowing development of most...
Chroma DB Alternatives
Chroma DB is described as 'Open-source search and retrieval database for AI applications' and is an app in the business & commerce category. There are more than 50 alternatives to Chroma DB for a variety of platforms, including Linux, Self-Hosted, Web-based, Mac and Windows apps. The best Chroma DB alternative is Algolia. It's not free, so if you're looking for a free alternative, you could try Algolia or Elasticsearch. Other great apps like Chroma DB are OpenSearch, Golem, Apache Solr and Manticore search.
Alternatives list
Xapian is an open source probabilistic information retrieval library, released under the GNU General Public License (GPL). It is a full text search engine library for programmers. It is written in C++, with bindings to allow use from Perl, Python, PHP, Java, Tcl, C#, Ruby, and...
Forget about being limited to inefficient rendering and content hosting only: XEL is the only Blockchain supercomputer where you can calculate whatever you want.
Cost / License
- Free
- Open Source
Application types
Platforms
- Self-Hosted
SearchUnit is the modern, flexible, fully featured ASP.NET search engine component for your web applications. Free Community edition available.


Expertrec custom search started as a replacement for google site search. It adds super-fast search autocomplete, spell correct, search listing pages to your website.
Cost / License
- Subscription
- Proprietary
Application type
Platforms
- Software as a Service (SaaS)


+2
Relevanssi Light is a simple, quick and effective search improvement that replaces the default WP search with a fulltext index search.
Cost / License
- Free
- Open Source
Platforms
- Self-Hosted
- Wordpress

Blockchain-Based Decentralized Cloud Computing. Reinventing Cloud Computing: We’re committed to create the next-generation of IT infrastructure by building a new Cloud computing paradigm.
Cost / License
- Free
- Open Source
Platforms
- Online
- MetaMask
Qdrant (read: quadrant) is a vector similarity search engine and vector database. It provides a production-ready service with a convenient API to store, search, and manage points—vectors with an additional payload Qdrant is tailored to extended filtering support.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Mac
- Windows
- Linux
Search over millions of documents, and give to your users unique, amazing and unforgettable experiences.
Cost / License
- Freemium (Subscription)
- Open Source
Application types
Platforms
- Self-Hosted
- GitHub Pages

Measured Search provides a fully-managed personalized search & discovery service offering feature packed textual & relevance based search, contextualized recommendations combined with search & interaction analytics that enable you to increase conversions...
Cost / License
- Pay once
- Proprietary
Platforms
- Linux
SearchBlox is an out-of-the-box Enterprise Search Solution built on top of Apache Lucene/Solr. It is fast to deploy, easy to manage and available for both on-premise and cloud deployment.
Cost / License
- Paid
- Proprietary
Application types
Platforms
- Mac
- Windows
- Linux
Medullar is the fastest, most secure way to discover your data across everyday platforms in real-time, wherever it is, with one universal search tool.
Cost / License
- Freemium (Subscription)
- Proprietary
Platforms
- Online
























