Browse free open source Ruby Frameworks and projects below. Use the toggles on the left to filter open source Ruby Frameworks by OS, license, language, programming language, and project status.

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  • 1
    NARF is an attempt to create a ruby web framework that escapes the weighty thud that one usually associates with web frameworks.
    Downloads: 1 This Week
    Last Update:
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  • 2
    OAproject implements a plataform to allow applications to interact. Apps using the platform send/receive messages through a message oriented middleware. Main features are a Single Sign On (SSO), Identity Management System (IMS) and a provisioning system
    Downloads: 1 This Week
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  • 3
    RailsDB is a web application written in Ruby using the Ruby on Rails web framework to provide a generic interface to popular open source databases such as MySQL, PostgreSQL, and SQLite.
    Downloads: 1 This Week
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  • 4
    A J2EE Web Dev Framework, Struts style MVC, Event Driven like JSF and Ajax-enabled Client Scripting like YUI, Fine grained event binding, access to server variables in JavaScript & Webpages, Easy integration with Struts, No custom tags & No complex API.
    Downloads: 1 This Week
    Last Update:
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  • 5
    Pirate is a programmable API for developing complex, extensible JavaScript objects and modules.
    Downloads: 1 This Week
    Last Update:
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  • 6
    A drop-in framework for adding tagging (folksonomy) capabilities to existing applications
    Downloads: 0 This Week
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  • 7
    Arachni

    Arachni

    Web Application Security Scanner Framework

    Arachni is an Open Source, feature-full, modular, high-performance Ruby framework aimed towards helping penetration testers and administrators evaluate the security of web applications.
    Downloads: 0 This Week
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  • 8
    Avo Framework

    Avo Framework

    Build Ruby on Rails apps 10x faster

    Avo is a very custom Admin Panel Framework, Content Management System, and Internal Tool Builder for Ruby on Rails that saves engineers and teams months of development time.
    Downloads: 0 This Week
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  • 9
    3D render engine cross platform written from scratch using c++11 standard features. With the approach to create a high scalable, flexible 3D engine with full modding support. Using flexible configs to include common technologies without the lack of massive extension coding
    Downloads: 0 This Week
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  • 10
    Blueprint CSS

    Blueprint CSS

    A CSS framework that aims to cut down on your CSS development time

    Blueprint CSS is a CSS framework aimed at accelerating layout and typographic design by providing robust base styles, grid systems, and reusable UI components. It combines normalized defaults with helpful utilities—such as column layouts, form styling, and typography helpers—so developers can build responsive sites with less repetitive CSS. Because it’s designed as a structural foundation rather than a themed UI kit, it’s easy to layer branding and custom design on top without fighting the base styles. The framework includes mixins, modifier classes, and responsive breakpoints so layouts adapt fluidly across screen sizes. By starting with a consistent baseline, Blueprint CSS reduces cross-browser quirks and gives designers confidence in spacing, proportion, and element alignment. Teams often use it as the “CSS backbone” of internal tools, web products, or component libraries.
    Downloads: 0 This Week
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  • 11
    Bricklayer is a Ruby web application framework that uses a component architecture very loosely based on that of perl's HTML::Mason. To see the proof of concept for Bricklayer, check out the Liber RDF Portal project.
    Downloads: 0 This Week
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  • 12
    CZEBOX is a referral Open Source implementation of ISDS DataBoxes (http://datoveschranky.info/), eGovernment messaging system founded by Ministry of Interior Czech Republic and Czech Post.
    Downloads: 0 This Week
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  • 13
    A set of tools and utilities that allow development teams to practice code generation techniques in a scalable and extensible manner. This is based on the style of code generation found in Ruby on Rails.
    Downloads: 0 This Week
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  • 14
    Compass

    Compass

    Stylesheet authoring framework

    Compass is a stylesheet authoring framework built on top of Sass that provides a rich set of mixins, functions, and helpers for writing maintainable CSS. It offers abstractions for vendor prefixes, cross-browser compatibility fixes, and reusable UI patterns like grids, buttons, and typography helpers. With Compass, developers can write cleaner Sass code that compiles into consistent CSS across browsers without hand-coding workarounds. The framework also includes a command-line tool for compiling Sass, managing sprite sheets, and integrating with build workflows. It was widely adopted in the era before modern CSS standards caught up with mixins and variables, helping developers speed up styling while reducing redundancy. While less dominant today, Compass remains an important historical tool that influenced the evolution of Sass and frontend best practices.
    Downloads: 0 This Week
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  • 15
    DuckRails

    DuckRails

    Development tool to mock API endpoints quickly

    DuckRails is a development tool. Its main purpose is to allow developers to quickly mock API endpoints that for many possible reasons they can't reach at a specific time. The application allows creating new routes dynamically to which developers can assign static or dynamic responses. DuckRails is an open source development tool built using the Ruby on Rails framework. The purpose of the tool is to allow developers to easily mock API endpoints outside their applications. Knowing ruby is not required. It would just help you define ruby dynamic mocks easier (embedded ruby). No worries, you can still define dynamic responses by selecting Javascript as the mock’s body type. Instead of defining a mock to always respond with some static content, you can also configure it to dynamically resolve the content to serve. For example, you can access the original request’s parameters and headers and decide how you could respond.
    Downloads: 0 This Week
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  • 16
    EasyRails is a Windows installation package for Ruby and Ruby on Rails. Its goal is to provide a fully package that installs and configures everything you need to begin your development.
    Downloads: 0 This Week
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  • 17
    Edgar

    Edgar

    Rails3-based CRM(Customer Relationship Management) application

    Since 2012/08/15, Edgar2 project starts. This is completely re-written as an 'engine' on Ruby-on-Rails 3.2.*
    Downloads: 0 This Week
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  • 18
    Etch is a cross-platform, language- and transport-independent framework for building and consuming network services. With Etch, service development and consumption becomes no more difficult than library development and consumption.
    Downloads: 0 This Week
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  • 19
    Grape

    Grape

    An opinionated framework for creating REST-like APIs in Ruby

    Grape is a Ruby framework for building REST-like APIs with a focus on simplicity and convention. It provides a DSL for declaring endpoints, parameters, formats, and validation rules, making it easy to build consistent and documented APIs. Grape supports multiple content types (JSON, XML, etc.), versioning, error handling, and authentication hooks, which are crucial for maintaining long-lived APIs. It integrates well with frameworks like Rails or Sinatra but can also be used standalone for microservices. Built-in tools like parameter coercion, strong validations, and automatic documentation (via Swagger integrations) reduce boilerplate and improve maintainability. Because it’s lightweight and purpose-built, Grape is popular in service-oriented architectures where clean, well-structured APIs are central.
    Downloads: 0 This Week
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  • 20
    Hanami

    Hanami

    A flexible framework for maintainable Ruby apps

    Hanami is a modern Ruby web framework that aims to be lightweight, fast, and modular, in contrast to the monolithic design of Rails. It emphasizes separation of concerns, encouraging developers to structure applications into clear layers of controllers, views, entities, and repositories. Each component—like the router, model layer, or view rendering engine—can be used independently, which gives developers flexibility to build lean applications. Hanami promotes immutability, plain old Ruby objects, and minimized global state, which makes codebases more maintainable and testable. It supports multi-application setups within the same project, making it well-suited for larger service-oriented architectures. The framework is designed to provide Rails-like productivity while encouraging more explicit architecture and performance-conscious choices.
    Downloads: 0 This Week
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  • 21
    A JavaScript presentation layer framework. It proposes a complete separation of view logic and design. Its components are designed by its role and not by its screen appearance, reducing drastically the API.
    Downloads: 0 This Week
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  • 22

    Java Named Lock

    Java Named Lock

    Java Named Lock.
    Downloads: 0 This Week
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  • 23
    Josso agent for Ruby on rails. Recently, there isn't a josso agent for ruby on rails. So, this project is born for SSO with JOSSO in the ROR environment.
    Downloads: 0 This Week
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  • 24
    LCDProc-Ruby is an application programming interface (API) to the LCDProc lcd server. You can create a client, add a screen to that client, and then add widgets to that screen. Multiple clients, widgets, and screens are supported.
    Downloads: 0 This Week
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  • 25
    "MiniKidsGames" is a collention of small games for kids. It's fun to play and learn. Full-screen easy-to-play games will keep your kids on your Mac. Xcode projects/templates/tutorial are available so you can make your games quickly!
    Downloads: 0 This Week
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