Rack::Sanitizer is a Rack middleware which cleans up invalid UTF8 characters in request URI and headers.

Security related HTTP headers for Rack applications

Upload files securely

Rack session store for Sequel

Slightly smarter session cookies for Rack 2 apps

A rack middleware to enforce appending or removing trailing slashes.

Not much to explain. Not a lot of code, but wanted it packaged up for easy use/deployment.

Rack middleware that deletes cookies at designated paths, including support for wildcard patterns for flexible cookie management.

Rack middleware to route requests with subdomains to specified routes with substitutions

Rack::TestApp is another testing helper library for Rack application. IMO it is more intuitive than Rack::Test.

Allow web service clients to specify the request time zone in an HTTP header.

Rack middleware for using the Authorization header with token authentication

Rack Middleware for logging raw incoming/outgoing HTTP traffic

Rack Middleware for filtering by user agent

A web console for Rack apps.

A Rack profiler for web applications.

Rails Active MCP enables secure Rails console access through Model Context Protocol (MCP) for AI agents and development tools like Claude Desktop. Provides safe database querying, model introspection, and code execution with comprehensive safety checks and audit logging. Features include: • Safe Ruby code execution with configurable safety checks • Read-only database query tools with result limiting • Rails model introspection (schema, associations, validations) • Dry-run code analysis for safety validation • Environment-specific configuration presets • Comprehensive audit logging and monitoring • Claude Desktop integration out of the box

Tagged caching support for Rails

Lightweight gem, tested in large Rails codebases (20k+ Ruby files). Allows AI assistants to evaluate and verify rails/ruby code changes securely at lighting-speed access without the need to restart server or run bundler.

RakeUp provides a set of tasks to automate the management of a local Rack based web application via Rake.