A danger.systems plugin for your markdown TOC.

Datadog instrumentation for ActiveSupport::Notifications

Datatrans Integration for Ruby on Rails

How many years, months and days are there between two dates

A web-based DB GUI for MySQL, Postgres, SQLite, etc.

Dead Simple CMS is a library for modifying different parts of your website without the overhead of having a fullblown CMS. The idea with this library is simple: provide an easy way to hook into different parts of your application (not only views) by defining the different parts to modify in an easy, straight-forward DSL. The basic components of this library include: * A DSL to define the changeable values in your app * Form generators based on SimpleForm (with or without Bootstrap) and default rails FormBuilder * Expandable storage mechanisms so you can store the data in different locations * Currently supported: Redis, Database, Memcache, even Memory (for testing) * Presenters/renderers so you can take groups of variables and render them into your views (ie image_tag) What it doesn't have: * Versioning - be able to look at old versions of the content * Timing - set start and end time for different content * Page builder tools - this is not the right tool if you want to design full pages

Decanter aims to reduce complexity in Rails controllers by creating a place for transforming data before it hits the model and database.

Use decent_exposure with decorators (e.g. Draper)

Detect keyboard mashing and other junk in your data.

A tool to display deprecations in a simple way on a single HTML page.

conversion from complexy write params to a json blob that an AR model can consume

Ruby client for the DIDWW JSON:API v3, covering DID inventory, voice in/out trunks, regulatory documents, exports, and emergency calling services.

Diffable encrypted configuration files that can be safely committed into a git repository

Exports requirements written in dim to plain RST source.

DynamoDB ORM for Ruby

Dirty tracking within hashes (with or without indifferent access) or objects as it is expected to be!

A Ruby gem providing a consistent interface for various AI/ML tokenizers including OpenAI GPT, Anthropic Claude, Google Gemini, Meta Llama, Mistral, Qwen, and embedding models like BERT, BGE, and multilingual-E5. Features caching, truncation, token counting, and error handling across different tokenization libraries.

Messaging system based on the reactor pattern. You can publish messages to a queue and then a demultiplexer runs an event loop which pops items from the queue and hands it over to a dispatcher. The dispatcher hands over the message to the appropriate handler. You can choose your own queueing service.

Provides clean Disqus API for your Ruby app with a nice interface.

Sinatra Based Application Framework