Explain complex systems using visuals and simple terms. Help you prepare for system design interviews.

Automatically add whitespace between CJK (Chinese, Japanese, Korean) and half-width characters (alphabetical letters, numerical digits and symbols).

Work with JSON-backed attributes as ActiveRecord-ish models

Migrate and update data alongside your database structure.

⚙️ NGINX config generator on steroids 💉

A list of amazing Newsletters

Higher-level data structures built on Redis

🛰️ Represent any GraphQL API as an interactive graph

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Display GraphQL queries in a more readable format

Map Redis types directly to Ruby objects

ActiveRecord::Store but with type definition

The wise choice for Ruby memoization

A ruby gem to parse Chinese numbers in texts.

🗜 JavaScript parser, mangler and compressor toolkit for ES6+

Easily set Mac Retina display to higher unsupported resolutions

Magical Authentication

An enterprise-class UI design language and React UI library

Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.

The OpenAPI Specification Repository

⚡ Powerful tool for avoiding N+1 DB or HTTP queries

Ruby implementation of GraphQL

A query batching executor for the graphql gem

Run your tests at the speed of thought

The speed of a single-page web application without having to write any JavaScript

Generic connection pooling for Ruby

The Event Library (Fiber Scheduler) that designed for Ruby 3.0.