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 Self-Hosted apps. The best Lunr.js alternative is Elasticsearch, which is both free and Open Source. Other great apps like Lunr.js are Apache Solr, Chroma DB, Sphinx (search engine) and Qdrant.