Lunr.js is described as 'Lunr Search is a compact, full-featured search tool that doesn't require external server-side services. It offers language processors for accurate user query results and can be adjusted to suit your content. Lunr works in your browser or on a server with node' and is an app in the development category. There are more than 10 alternatives to Lunr.js for a variety of platforms, including Linux, Web-based, Mac, Windows and SaaS apps. The best Lunr.js alternative is Elasticsearch, which is both free and Open Source. Other great apps like Lunr.js are Apache Solr, Sphinx (search engine), Elasticlunr and ItemsAPI.