RDoc produces HTML and command-line documentation for Ruby projects. RDoc includes the +rdoc+ and +ri+ tools for generating and displaying documentation from the command-line.

An opinionated language server for Ruby

IDE tools for code completion, inline documentation, and static analysis

Useful tools for Sorbet enthusiasts.

Gradual Typing for Ruby

RBI generation framework

TypeProf performs a type analysis of non-annotated Ruby code. It abstractly executes input Ruby code in a level of types instead of values, gathers what types are passed to and returned by methods, and prints the analysis result in RBS format, a standard type description format for Ruby 3.0.

Use webpack to manage app-like JavaScript modules in Rails

Russian language support for Ruby and Rails

Manage money in Shopify with a class that wont lose pennies during division!

A RBS files generator for Rails application

Inline RBS type declaration.

Type based completion for REPL.

Compact Language Detector v3 (CLD3) is a neural network model for language identification.

Generate Sorbet RBI files from YARD documentation

Syntax Tree support for RBS

A high-performance Ractor web server for Ruby 4.0+: Rack 3-based, with a Rust tokio/hyper front-end and Ractor-parallel Ruby workers and threaded fallback mode.

IRB with Typed Completion

Official NFE.io SDK for Ruby — modern Ruby (3.2+), zero runtime dependencies, for issuing and managing Brazilian electronic fiscal documents (NFS-e, NF-e, NFC-e, CT-e).

Build RBS by Rack base architecture