thoughtbot, inc. ORG

A guide for programming in style.

Easy file attachment management for ActiveRecord

A now-deprecated Ruby on Rails library for attaching uploaded files to database records, with automatic image resizing via ImageMagick and cloud storage support, replaced by Rails' built-in ActiveStorage.

A Lightweight Sass Tool Set

A now-deprecated library of Sass mixins and helpers that made writing CSS easier, officially deprecated in September 2024 because modern CSS now handles most of the problems it once solved.

A shell script to set up a macOS laptop for web and mobile development.

A shell script that sets up a Mac for web and mobile development in under 15 minutes, installing Homebrew, Git, Node.js, Ruby, Postgres, Redis, and more, safe to re-run after updates.

A library for setting up Ruby objects as test data.

A set of vim, zsh, git, and tmux configuration files.

A Rails engine that helps you put together a super-flexible admin dashboard.

A fluid and flexible grid Sass framework

A Rails application template with our standard defaults, optimized for deployment on Heroku.

Today I Learned

Rails authentication with email & password.

Simple one-liner tests for common Rails functionality

Functional JSON parsing library for Swift

rc file (dotfile) management

Easily include static pages in your Rails app.

Factory Bot ♥ Rails

Makes tests easy on the fingers and the eyes

Custom Android RecyclerViewAdapters that collapse and expand

An interactive shell for git

A Capybara driver for headless WebKit to test JavaScript web apps

Weather and Forecasts for Humans

[no longer maintained]

Product Design Sprint Material

Add a dash of pre-defined style to your Bourbon.

Simplify receiving email in Rails (deprecated)

A Ruby library for testing your library against different versions of dependencies.

Trails to help designers and developers learn various topics.

A collection of branches that transmit HTML over the wire.

A library for setting up JavaScript objects as test data

Shell commands for development, staging, and production parity for Heroku apps

Infix operators for monadic functions in Swift

A small library for doing (command) lines.

View helpers for Rails applications

Example App: How To Efficiently Display Large Amounts of Data on iOS Maps

Run Rspec specs from Vim

The reference for writing fantastic Rails applications

A productive library for Classic Rails, React and Redux

Modify your ENV

Better company announcements

Swift implementations for function currying

An unobtrusive, developer-friendly way to add comments

Generated scopes for ActiveRecord classes

Reports exceptions to Hoptoad

Filter sensitive information from free text before sending it to external services or APIs, such as chatbots and LLMs.

A Stripe fake so that you can avoid hitting Stripe servers in tests.

Validate your JSON APIs

Nothing but Net(working)

Sharpen your programming skills.

A library for "one off" announcements in Rails apps.

Source code for the Testing Rails book

Run shell commands safely, even with user-supplied values

Android library, written exclusively in kotlin, for animating the path created from text

Easy dependency injection for storyboard segues

Managing state is hard. Delta aims to make it simple.

Shoulda Context makes it easy to write understandable and maintainable tests under Minitest and Test::Unit within Rails projects or plain Ruby projects.

A collection of useful rake tasks.

Pluggable HTTP authentication for Swift.

A very fast json builder for Rails

[DEPRECATED] Easy AJAX file uploading in Rails

DIY @font-face web service.

A command line tool to identify complex code

Write Yourself A Roguelike: Ruby Edition

Sort HTML tables in your Rails app.

Claude skill to run code audits

Automatically ask for a PR review

Botcasts is a Hotwire-powered podcast player and Hotwire Essentials is the associated tutorial to learn how build it yourself.

Heroku deploy tasks with test coverage (DEPRECATED, NO LONGER BEING DEVELOPED)

Belt is a CLI for starting a new React Native Expo app and will even keep your pants secure as you continue development.

A template react native project for ergonomic styling structure and patterns.

Spin up an external server just for Capybara

Weather and Forecasts for Humans

A JavaScript Vim simulator for demonstrations

Remove the boilerplate of modal presentations in SwiftUI

TailwindCSS variants for aria-* attributes

[DEPRECATED] Adds test spies to mocha.

Terraform modules for rapidly building production-grade Kubernetes clusters following SRE practices.

Paperclip demo application

Create powerful interfaces for filtering, searching, and sorting collections of items.

A practical book about using Git

A project scaffold for building ghost themes using gulp, node-sass, & autoprefixer

Art Vandelay is an importer/exporter for Rails 7.0 and higher.

Programming without Null

[no longer maintained]

A successful open source project is not only one that is original, solves a particular problem well, or has pristine code quality. Those are but the tip of the iceberg, which we'll thoroughly dissect with this book.

A guide to building a Rails API and iOS app

Sample code for the Blending Modes blog post

Documentation templates for open source projects.

Accessibility tooling for Capybara

[no longer maintained]

Template React Native project to be used with Cookiecutter

A slack bot to help with FOMO.

An implementation of the Model-View-ViewModel (MVVM) pattern using Combine.

Javascript Server Side Rendering for Rails

A repository of common (and not so common) active record queries.

thoughtbot design system (tbds)

A boilerplate of pre-defined native CSS styling

The power of Rails forms for React

Prevent slow tests from creeping into your suite.

Searches for interesting messages in a Slack channel and creates a blog post with them. See https://thoughtbot.com/blog/tags/this-week-in-dev

tree, but from stdin

OpenTelemetry instrumentation for RubyLLM. 💬🔭

A sample project for getting started with Bourbon and Neat with Gulp

A new generation of vector assets

ActiveRecord like associations for your static data.

Find available time slots quickly with a materialized view.

Homebrew formulae for some of our tools

Public repo for thoughtbot custom Arduino board

Enforce duck-typed interfaces in Ruby through your test suite.

Your Map to Geocoding Rails Applications

Backbone.js on Rails

This is a folder of materials for students of the Learn Design Workshop (front-end development)

No description.

This application will serve as an example of how to track analytics such as page views using Rails. Once complete, this application will be a companion to a blog post.

No description.

A kata involving noisy animals designed for practice in improving code

An example iOS application for the Coordinator Pattern

A Go project template with our standard defaults.

User-friendly code input in React Native.

No description.

Our guide to the cities where we have offices

Cloudformation template to create Terraform state S3 backend

Presentation on the agile development process.

Automatically filter sensitive information from RubyLLM conversations using Top Secret.

A Claude Code skill that systematically eliminates unexpected output from a Ruby on Rails RSpec test suite

Create CI/CD pipelines to deploy applications to EKS clusters.

Example app demonstrating dark mode implementation

A sharable ESLint configuration that enforces thoughtbot’s JavaScript guides.

thoughtbot Guide for deploying applications to AWS

A collection of skills for Rails development and consulting with an emphasis on learning, communication, and client success.

A shareable stylelint configuration that enforces thoughtbot’s Sass guides.

No description.

Helpers and models for using Braintree in a Rails application

Generate and rotate IAM access keys usable for sending email uses Amazon SES

This repo contains a Claude Skill that you can add to your Rails project to generate a postman collection from your codebase.

No description.

Make HTTP calls by leveraging Rails rendering

A simple gem to help you perform data migrations in your Rails app.

Manage values that expire after a period of time.

Terraform modules for creating and rotating secrets

No description.

An example of using authenticate_or_request_with_http_token

A simple and flexible webview for displaying Markdown in React Native.

Delegate subdomains in Route 53 to other hosted zones, including across accounts

A command-line client to interact with Flightdeck clusters and workspaces.

Translations for clearance

Terraform module to provision the SSOSync Lambda

Template repository for AWS landing zones

A game of arbitrage.

Terraform module to provision and assign permission sets for an AWS landing zone

Terraform modules to provision databases on AWS

No description.

Template repository for Flightdeck deployments

A guide to building a Rails API and React Native mobile app

Lookup AWS SSO permission set roles by permission set name

OptionParser's missing sibling.

chef recipes for starting daikon

No description.

A small protocol for saving things to the keychain

No description.

No description.

Ruby client for checking the status of third-party services.

No description.

Embed SVG documents in your Middleman views

Slack scheduler to set up rotating pairings

Fork of Mastodon code for thoughtbot customizations

Bundler Audit Action

Create an AWS domain identity with optional delegated authorized sending

No description.

Code with thoughtbot's best practices in mind. Atomic commits, code auditing, testing patterns, Rails best practices, refactoring discipline, and systematic debugging.

Claude Code plugin for atomic commit workflow and small PR nudges

Terraform module to create an ingress stack powered by AWS Application Load Balancer

Pose prompts to teams!

No description.

WIP experiment: Build mobile apps in Elm using React Native.

No description.

Terraform module to create a secure S3 bucket.

Atomic file writes for Ruby.

The OpenTelemetry website and documentation

:memo: HTML to React parser.

A superglue example

Using blackjack to explore Combine and Diffable Data Source

Heroku buildpack with vips and pdf support via poppler (temporary fork)

Official Ruby client library for the Asana API v1

A Dependabot-style GitHub Action for importmap-rails

Contrib Packages for the OpenTelemetry Ruby API and SDK implementation.

Create and rotate Sentry project DSNs using AWS Secret Manager

A vault for storing and retrieving secrets securely.

A comprehensive collection of Quran resources

One beautiful Ruby API for OpenAI, Anthropic, Gemini, Bedrock, OpenRouter, DeepSeek, Ollama, VertexAI, Perplexity, Mistral, xAI, GPUStack & OpenAI compatible APIs. Chat, Vision, Audio, PDF, Images, Embeddings, Tools, Streaming & Rails integration.

modular high-performance TypeScript framework

How do you run a Rails app in GitHub Codespaces?

Alba is a JSON serializer for Ruby, JRuby and TruffleRuby.

A Performance analyzer for Ruby

No description.

Terraform module for provisioning Flightdeck application resources in AWS

Terraform modules for common CodePipeline/CodeBuild dependencies

Heroku classic buildpack that installs Chrome for Testing, keeping it updated on each build.

ActiveModel::Serializer implementation and Rails hooks

Free and open source fundraising infrastructure for nonprofits and NGOs

Heroku Buildpack for unixODBC with the Snowflake driver installed