Cost / License
- Free
- Open Source
Platforms
- Self-Hosted


Elasticsearch is described as 'Unmatched relevance. Real-time insights. Anything is possible — when the precision of search meets the intelligence of AI' and is a popular Search Server in the development category. There are more than 50 alternatives to Elasticsearch for a variety of platforms, including Linux, Web-based, Self-Hosted, Mac and Windows apps. The best Elasticsearch alternative is Algolia. It's not free, so if you're looking for a free alternative, you could try Algolia or Apache Solr. Other great apps like Elasticsearch are OpenSearch, Manticore search, Vespa and Searchspring.


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.




Pagefind is a fully static search library that aims to perform well on large sites, while using as little of your users’ bandwidth as possible, and without hosting any infrastructure.

Zevi is a site search engine that is build with NLP and AI at its core. With Zevi a customer can easily pass through your website and give back ranked results based on the businesses preference. Zevi makes site Information discovery a breeze.




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...
Adds a customizable search box to your web pages and show fast, relevant results powered by Google Search. It is useful in the ways that is free, but has quite bad crawlers for YOUR website.




Enterprise search, simplified. Cloud-based enterprise search solution that search across all of your organization’s content sources — Aconex, Procore, Dropbox, Microsoft Sharepoint, Onedrive, and more.

SearchUnit is the modern, flexible, fully featured ASP.NET search engine component for your web applications. Free Community edition available.


Searchcraft is a highly performant, content-optimized search engine written in Rust. It has lower resource footprint than Elasticsearch with faster response times. It aims to be faster, easier to implement, and easier to manage than Elasticsearch, OpenSearch, Agolia and Solr...

Less bloated, faster, easier to use

Sooqr is an instant & relevant onsite search engine for both product & content. Hassle-free installation - up and running within 15 minutes, and no developer needed. Sooqr Search is cloud-based, faceted & customisable.




Historically, software platform vendors have created lock-ins for customers that building on their stacks. Open source has provided greater freedom and reduced investments for applications projects. The so-called Platform As A Service (PaaS) offerings from the cloud providers...
Enonic is a CMS not a search engine

Enhance your image searching with a command-line tool enabling semantic search locally via node-mlx. Utilizing CLIP model embeddings stored as binary JSON for indexing serves rapid queries without any reliance on third parties, ensuring efficiency even with extensive image collections.



Way better that Elastic! Lighter, faster, simpler.