Debugging toolbar for Rack applications implemented as middleware. Based on logical-insight and rack-bug.

Rack middleware Captcha verification using Recaptcha API.

Streaming proxy for Rack, the rainbows to Rack::Proxy's unicorn.

Rack middleware for Weixin apps: message validation/parser/generator

Rack middleware for serving static gzipped assets generated by the Rails asset pipeline

Rails 5 issues a deprecation warning if your controller/request tests don't wrap user-supplied params in a `params` keyword. This helps with that.

Rails generator which allows to scaffold admin controllers, views with proper (non-namespaced) models, helpers, tests and routes

rails-ai-context turns your running Rails app into the source of truth for AI coding assistants. Instead of guessing from training data or stale file reads, agents query 35 live tools (via MCP server or CLI) to get your actual schema, associations, routes, inherited filters, conventions, and test patterns. Semantic validation catches cross-file errors (wrong columns, missing partials, broken routes) before code runs - so AI writes correct code on the first try. Auto-generates context files for Claude Code, Cursor, GitHub Copilot, OpenCode, and Codex CLI. Works standalone or in-Gemfile.

Run your data migration tasks in a db:migrate-like manner

Gem to display the rails environment on the favicon

Point it to a directory and see stuff about the app

Add after and before hooks to rake tasks. You can use "after :task do ... end" and "before :task do ... end".

Vlad the Deployer's sexy brainchild is rake-remote_task, extending Rake with remote task goodness.

A fast Atom Syndication and Publication API based on libxml

Rbkb is a collection of ruby-based pen-testing and reversing tools. Inspired by Matasano Blackbag.

A Ruby port of CredStash

React-Router for Rails Asset Pipeline

Ruby wrappers for the Ed25519 public key signature system

Ruby gem for running state-of-the-art language models locally. Access LLMs, embeddings, rerankers, and NER models directly from Ruby using Rust-powered Candle with Metal/CUDA acceleration.

A Rails engine that adds a piece of middleware to the top of your middleware stack that looks for redirect rules stored in your database and redirects you accordingly.