Tagtical allows you do create subclasses for Tag and add additional functionality in an STI fashion. For example. You could do Tag::Color.find_by_name('blue').to_rgb. It also supports storing weights or relevance on the taggings.

Shows the rails logs in the browser at /logs.

Select builder for district of Taiwan cities.

Rails: Import data from google spreadsheet to database or files, download files that attach to rows

TakeOff is a rails engine for creating landing page quickly.

Just a couple of utilities shared accross the apps to make development much easier.

Centralize and delay changes to multiple ActiveRecord models to offload processing of complex calculations caused by model mutations.

Visual programming editor and it's VM based on Google Blockly and Tao on Rails.

Editor component based on prosemirror and tao_form

A popover component based on Tao Framework.

UI library based on tao

A simple database agnostic import/export app to transfer data to/from a remote database. Tapsicle includes fixes submitted by the community.

Lace up Backbone.js with Bootstrap.js

TasksManagement permits set title, description, state, priority, owner, requester, task parent, end date and attach a file for any task.

Task processing queue with states, history and priorities. Works with your favorite database.

税金計算ライブラリ

tagging with namespace and tree.

It finds, caches and updates social engagement of urls on social media (facebook, twitter)

Autoloading makes some things too difficult. I prefer prerequiring all thing which i need in order i want.

Twitter-Bootstrap-Helpers -- Rails 3 View-Helpers for Twitter-Bootstrap