Comprehensive text-based code search, free for Open Source

Free 1 GB memory and 1 GB storage

Free 2 indices and 20 MB storage

Unified Search Bar as-a-service, web-based UI widget/plugin that allows your users to search contents, navigations, features, etc. within your product, which helps discoverability. Free for up to 1,000 Monthly Active Users, unlimited commands

Google Keep for Code Snippets. Organize, Discover, and share code snippets, featuring a powerful code screenshot tool with preset templates and a linking feature

Open-source, fast, and relevant search engine.  

Open-source and hosted search as a Service. 

Search as a service and full suite of search APIs

Search as a service (crawlers and React ready)

Search various websites like GitHub, Gitlab, Heroku, Netlify, and many more for the availability of your project name

Free 3 indexes, 100K docs/index, unlimited full-text/vector/hybrid searches, 60 days analytics

Open-source and hosted search with Solr