Whoosh is a library of classes and functions for indexing text and then searching the index. It allows you to develop custom search engines for your content.
Cost / License
- Free
- Open Source
Platforms
- Self-Hosted
Qdrant is described as '(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' and is a Vector Database in the development category. There are more than 50 alternatives to Qdrant for a variety of platforms, including Self-Hosted, Linux, Web-based, Mac and Windows apps. The best Qdrant alternative is Meilisearch. It's not free, so if you're looking for a free alternative, you could try Elasticsearch or Algolia. Other great apps like Qdrant are OpenSearch, Golem, Apache Solr and Viglet Turing.
Whoosh is a library of classes and functions for indexing text and then searching the index. It allows you to develop custom search engines for your content.
GPU Sharing Economy: One simple interface to find the best cloud GPU rentals. Reduce cloud compute costs by 3X to 5X.
Free Web Hosting provider with paid options for Shared Hosting, VPS, and Domains. The website offers free subdomain registrations.

Toshi is meant to be a full-text search engine similar to Elasticsearch. Toshi strives to be to Elasticsearch what Tantivy is to Lucene.
Elasticlunr.js, lightweight full-text search engine in Javascript for browser search and offline search. Elasticlunr.js is developed based on Lunr.js, but more flexible than lunr.js. Elasticlunr.js provides Query-Time boosting and field search.
i-Search Pro changes the way of WordPress Search. It’s full WooCommerce compatible. Provide Live search results in milliseconds. Include almost everything in your search results.




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...
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...
An intelligent yet easy-to-install site search for any website. Simply start typing to get search autosuggestions and semantically enriched structured data at your fingertips.




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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.



