Padrino is a Ruby web framework built upon the Sinatra web library.

Padrino was created to make it fun and easy to code more advanced web applications while still adhering to the spirit that makes Sinatra great!

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Story behind the Padrino logo
Released on September 13, 2020


The Padrino code base has been kept simple and easy to understand, maintain and enhance. The generator for each new project creates a clean and compact directory structure keeping your code simple and well organized.

Padrino strives to adhere to the following basic principles:

Tiny and fast. Clean and compact. Creative and concise.

This framework can be used with ease for web development for a project of any size from your lightweight json web service to a large full-stack web application!

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Drop-In Admin

Padrino ships with an Admin Interface that includes the following features:

Feature Description
ORM/ODM Adapters for datamapper, activerecord, sequel, mongomapper, mongoid
Authentication Account authentication support and permission management
Template View support for Erb and Haml rendering engines
Scaffold Create a model “admin interface” by invoking a command
i18n Translated into 10 languages including English, Spanish, and Italian
$ padrino-gen project cool --orm activerecord
$ cd cool
$ padrino-gen admin
$ padrino-gen admin page post

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Building on our experience in developing web applications, we designed a framework that meets all the requirements for creating a top notch web application in a clean, concise and simple environment, with minimal deadline delays.

We provide you with the following out of the box:

Feature Description
Agnostic Full support for many popular testing, templating, mocking, and database libraries.
Generators Create Padrino applications, models, controllers, admin.
Mountable Unlike other ruby frameworks, principally designed for mounting multiple apps.
Routing Full url named routes, named params, respond_to support, before/after filter support.
Helpers Different helpers for generating tags, forms, links, images, and more.
Mailer Fast and simple support for delivering emails.
Caching Simple route and fragment caching to easily speed up your web requests.
Admin Built-in admin interface (akin to Django) with authentication.
Logging Provides a unified logger that can interact with your ORM or any library of your choice.
Reloading Automatically reloads server code during development.
Localization Full support for I18n localization.

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Padrino is ORM/ODM, JavaScript, testing, rendering, and mocking agnostic supporting the use of any number of available libraries.

The available components and their defaults are listed below:

Component Default Options
ORM/ODM none activerecord, datamapper, mongomapper, mongoid, sequel, couchrest
JavaScript none prototype, rightjs, jquery, mootools, extcore
Renderer none Erb, Haml, Slim
Test none Bacon, Shoulda, Cucumber, Riot, RSpec
Stylesheet none Less, Sass, SCSS, Compass
Mock none rr, Mocha

Just create the project with the usual generator command and pass in your preferred components!

$ padrino g project cool --orm datamapper
$ padrino g project cool --renderer haml --stylesheet sass
$ padrino g project cool --script mootools
$ padrino g project cool --orm mongoid --script mootools
$ padrino g project -h ## shows available options

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Sinatra Core

Many people love the simplicity and expressiveness of Sinatra but quickly find themselves missing a great deal of functionality provided by other web frameworks such as Rails when building non-trivial applications.

Sinatra acts as a thin layer on top of Rack itself and the "micro"-framework is kept light introducing complexities only when required by the particular application.

Our goal with Padrino is to stay true to the core principles of Sinatra including a focus on simplicity and modularity.

Starting from this assumption, we have developed a different approach to a web development framework. We expand on Sinatra through the addition of standard libraries including helpers, components, and other functionality that are needed in a framework suitable for arbitrarily complex web applications.

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