📢 Sponsored: Check out Susan's Sudoku - A free daily sudoku puzzle.

Intermediate

HCB by Hack Club

🏦 The neobank built for nonprofits.

Updated Apr 05, 2025

By Sam Poder

Free Open Source Real World Example

Price: Free

Description

HCB is an open source, safe, and easy-to-use fiscal sponsorship platform for hackathons, Hack Clubs, robotic teams and more. We use it to run our fiscal sponsorship program, we provide high schoolers with a 501(c)(3) status-backed restricted fund for their organization. Behind the scenes, HCB is a Ruby on Rails application (learn more by reading our documentation).

More "Free" Projects

Fizzy

The Kanban tracking tool for issues and ideas by 37signals

By Basecamp View Details →

RubyEvents.org - iOS

Hotwire Native iOS App

By Marco Roth, Leon Vogt, Joe Masilotti View Details →

Campfire

Super simple group chat, without a subscription. And you get the code, too.

By 37Signals, Basecamp View Details →

More "Open Source" Projects

Once

Easy self-hosting for Docker-based web apps

By Basecamp View Details →

Maybe

The OS for your personal finances.

By Josh Pigford View Details →

RubyUI

A UI component library, crafted precisely for Ruby devs who want to stay organised and build modern apps, fast.

View Details →

More "Real World Example" Projects

Writebook

Instantly publish your own books on the web for free, no publisher required.

By 37Signals, Basecamp View Details →

ActiveRabbit

AI-based error tracking and performance monitoring

By Alex Shapalov View Details →

Turbo Native Directory

A place to discover Turbo Native applications and share learnings on building them.

By Rob Zolkos View Details →

Stay updated with the latest Rails projects

Join our newsletter to get updates on new Rails projects and resources.