Search addresses in Japan by postal code, and vice versa, by using AWS Athena. This gem can only work by using JRuby.

Search all loaded ruby source code

A simple scored search plugin for ActiveRecord models. Suited for small projects with little needs for scalability and a reserved attitude towards technical debt (i.e. ElasticSearch, Solr, ...).

Generates Rails code implementing a search system using SimpleSearch for your Rails app.

This application allow users to search questions and answers in console mode, no more browser needed!

A gem for niconico snapshot search api v2.

Search and autocomplete based on Arel and WebComponents.

ndl_search.rb is a wrapper library for NDL Search OpenSearch API

A dead simple search engine backed by Redis

Generates from an array of directories an array of the files they contain. Support recursive search.

PostgreSQL search for Alchemy CMS

Same as mongodb_fulltext_search, except excludes rails as a dependency

Ruboty plug-in to search twitter.

Provides modules that can form the basis of a mongomapper class implementing a search model.

gem to search material icons by icon-name, group, keywords

This Ruby Rails gem allows a robust nested SQL text search. To date is has only been tested on MariaDB/MySQL.

Some RDBMS (like PostgreSQL 8.3 and newer) implement full text search directly, so you don't need external tools. This Rails plugin gives that functionality in a generic way.

Run in any directory containing pdfs using `$ pdf_search (optional: %folder name%)`

Find a line in a log file. Uses binary search to find the line quickly in a large log file. Can only search sorted data - which in the case of log file is the timestamp, and probably not much else.

A lita plugin to do all the type of google search