Cost / License
- Freemium
- Open Source (Apache-2.0)
Platforms
- Online
- Software as a Service (SaaS)
- Python

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 an app in the development category. There are more than 50 alternatives to Qdrant for a variety of platforms, including Linux, Self-Hosted, Web-based, Mac and SaaS apps. The best Qdrant alternative is Meilisearch. It's not free, so if you're looking for a free alternative, you could try Algolia or Elasticsearch. Other great apps like Qdrant are Golem, OpenSearch, FalkorDB and Apache Solr.

Fully-managed vector database providing lightning-fast, relevant search with developer-focused APIs, effortless scalability, metadata filters, transparent usage-based pricing, multi-cloud support, easy integration, unstructured data handling, and no need for infrastructure upkeep.


Sphinx is a software search engine designed with indexing database content in mind. It currently supports MySQL, PostgreSQL, and ODBC-compliant databases as data sources natively. Other data sources can be indexed via pipe in a custom XML format.


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.
High-performance, full-featured text search engine library written entirely in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform. Apache Lucene is a open source.
Milvus is an open-source vector database built to power embedding similarity search and AI applications. Milvus makes unstructured data search more accessible, and provides a consistent user experience regardless of the deployment environment.


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.

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.
Toshi is meant to be a full-text search engine similar to Elasticsearch. Toshi strives to be to Elasticsearch what Tantivy is to Lucene.