Open Source Ruby Business Software

Open source project management software. Efficient classic, agile or hybrid project management in a secure environment. Take control of your data and stay secure. Take back your data ownership, we give you the power to protect your privacy in a secure environment and with highest standards in data security and privacy. OpenProject can be installed on-premises in your own infrastructure, having full control and 100% data ownership. You know where your data is stored and what happens to it, without external influence. Make your teams' working lives easier, more productive, and more enjoyable. Whether it is traditional, agile or hybrid project management, OpenProject is the fastest and safest way for teams to connect, structure their work and achieve results. Everyone knows the goals and works together to achieve them. Organize your own tasks and assign tasks to a teammate. With OpenProject you have all the information in one place.

Grafana OSS is the leading open-source platform for visualization and observability. It enables teams to query, visualize, alert on, and explore telemetry data from multiple sources in a single interface. With support for 100+ data source plugins—including Prometheus, Loki, Elasticsearch, InfluxDB, SQL/NoSQL databases, and OpenTelemetry—Grafana helps teams correlate metrics, logs, and traces across applications and infrastructure. Users can build interactive dashboards with rich visualizations, template variables, and reusable panels to monitor systems and troubleshoot issues in real time. Grafana includes capabilities such as ad hoc data exploration, alerting, annotations, and flexible query support. Its extensible plugin ecosystem integrates with cloud platforms, databases, and developer tools—allowing teams to build observability workflows without vendor lock-in. The easiest way to get started with Grafana is with Grafana Cloud, our fully managed, full-stack observability platform.

VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts. Such maps can help you to improve your creativity and effectivity. You can use them for time management, to organize tasks, to get an overview over complex contexts

This repository contains the source code for Gumroad’s e-commerce platform, exposing how a modern creator-focused storefront and payments system is assembled. The app models products, variants, subscriptions, and checkout flows, then ties them to fulfillment, licensing, and customer communications. It implements typical marketplace concerns—order management, refunds, discounts, taxes, fraud checks, and analytics—through well-defined services and background jobs. The UI offers product pages, carts, and dashboards for creators to manage listings and see performance, while APIs/webhooks enable integrations with external sites and automation. The codebase demonstrates practical patterns for multi-tenant architecture, permissions, testing, and asynchronous processing at scale. For engineers, it’s both a working marketplace and a study in how to balance flexibility for creators with reliability in payments and delivery.

Spree Commerce is a complete, free and open source e-commerce solution built with Ruby on Rails. It offers a modern, mobile-first UX, optional PWA frontend, REST API, plus many official extensions and third-party integrations. Spree Commerce offers plenty of advantages in terms of user experience, business value and security. Because of its mobile-first approach, it offers a truly smooth UX on every device, be it mobile or desktop. It’s got amazing page load speed and SEO; fast and easy installation, customization and configuration; options for flexibility and scalability; as well as mature underlying technology that ensures maximum security and compliance. It’s been downloaded over a million times, helping numerous businesses achieve success.

Open source document filling and signing. DocuSeal is an open-source platform that provides secure and efficient digital document signing and processing. Create PDF forms to have them filled and signed online on any device with an easy-to-use, mobile-optimized web tool. Use embeddable code snippets to seamlessly implement the document signing workflows directly on your website or app. Build fillable document forms using our pixel-perfect HTML API, reducing the time for creating personalized documents. DocuSeal Pro users can connect their Gmail or Outlook accounts to send all signing invitation emails from their connected email address under a custom domain. All email messages sent via DocuSeal are customizable. With our step-by-step form users have a smooth signing experience on small mobile screens. Also, you can upload documents and request signatures directly from your device.

QuickFIX is the worlds first Open Source C++ FIX (Financial Information eXchange) engine, helping financial institutions easily integrate with each other. The SVN repository is now locked. Latest code is hosted at github. https://github.com/quickfix/quickfix

If you have questions, are confused, or just want to understand our product better, we've got your back. Customer engagement suite, an open-source alternative to Intercom, Zendesk, Salesforce Service Cloud etc. Chatwoot is an open-source, self-hosted customer engagement suite. Chatwoot lets you view and manage your customer data, communicate with them irrespective of which medium they use, and re-engage them based on their profile. Talk to your customers using our live chat widget and make use of our SDK to identify a user and provide contextual support. Connect your Facebook pages and start replying to the direct messages to your page. Connect your Instagram profile and start replying to the direct messages. Connect your Twitter profiles and reply to direct messages or the tweets where you are mentioned. Connect your Telegram bot and reply to your customers right from a single dashboard.

Logstash is a server-side data processing pipeline that dynamically ingests data from numerous sources, transforms it, and ships it to your favorite “stash” regardless of format or complexity. It supports and ingests data of all shapes, sizes and sources, dynamically transforms and prepares this data, and transports it to the output of your choice. Logstash is extensible, with over 200 plugins available to let you create and configure your pipeline how you choose.

This is a C library to check the validity of German and Austrian Bank Account Numbers. All currently defined test methods by Deutsche Bundesbank (Dec 2017: 00 to E4) are implemented. Modules for AWK, Perl, PHP, Python, Ruby, C#.net and VB.net are included too. The package includes also an IBAN converter to generate (german) IBANs and BICs from account data. All currently defined IBAN rules by Deutsche Bundesbank are implemented (Dec 2017: 57 rules) and tested against independent solutions.

Frankfurter is an open-source currency exchange rate API that provides reliable financial data based on reference rates from institutional sources such as the European Central Bank. It is designed to be simple, transparent, and free to use, with no API key requirements or usage limits, making it particularly attractive for developers and small projects. The API offers endpoints for retrieving the latest exchange rates, historical data, and time-series data, enabling both basic conversions and more advanced financial analysis. It allows users to specify base currencies and filter results by selected currencies, making responses efficient and customizable. The system can be used directly from client-side applications or self-hosted for full control over data access. Its lightweight design and straightforward JSON responses make integration easy across web and mobile environments.

Helpy is a modern, self-hosted, on-premise customer support helpdesk platform designed from the ground up to give your customers a heroic customer service experience. Written in Ruby on Rails, Helpy seamlessly integrates support ticketing, Knowledgebase and a public community into one powerful solution. Helpy powers your helpcenter by providing a host of exceptional features, including multichannel ticketing, a full text searchable and SEO optimized Knowledgebase, community support forums and more. Helpy lets you harness the power of automation with Carin™, a customer support bot that can answer up to 90% of Tier 1 questions autonomously. All this and more guarantees better performance results for your helpdesk staff and the delivery of outstanding customer service experiences every time.

A quantitative finance C++ library for modeling, pricing, trading, and risk management in real-life. A cross-platform free/open-source tool for derivatives and financial engineering.

An Excel addin and server framework for implementing remote excel user-defined functions (UDFs). This framework is designed to provide a centralised warehouse of functions for Excel users (eg. within an organisation).

Log analyzer for Cognos Upfront audit logs.

Coupa e-Procurement is a requisition and purchase order system with best-in-class usability. Built to manage employee purchasing, it includes catalog management, shopping cart buying, approvals, purchase orders and more. Built in Ruby on Rails.

DataVision is a reporting tool similar to Crystal Reports. DV supports many data sources (JDBC, files) and many output formats (HTML, XML, PDF, LaTeX, Excel, delimited files, DocBook). DV includes a GUI editor. DV is embeddable. Reports are XML-based.

Billing system solution. Library for credit card/ACH processing, recurring billing and subscription management for member and donor centered organizations. Provides a way for POS / retail / recurring credit card and bank account processing.

JLink lets users author flow charts based on ISO 5807 and IBM standards. Developers can use JLink to add flowcharts to applications, serve a flow chart over the web in PDF or PNG, or dynamically create a flowchart with Javascript, Python or Ruby scripts

OnMyMeans is a budget application built using Rhomobile's Rhodes mobile application development framework.

A7 is an editor-based PIM(Personal Information Manager) or Schedular. I wanted to have better schedular on both online and offline everytime. It would be good to have some collaboration between on/off tools, but it is minor priority. For offline, finally I select just A4 size (=~ letter size in the U.S.) size paper folded into 3 times(A4 -> A5 -> A6 -> A7) and ball-point pen. This project name (A7) comes from this inspiration. For online, I wanted to have life-time schedular and easy text input tool. Unfortunately, I could not find out such a tool so that I launch this project.

A web-based application that tracks multiple projects and project related information such as time tracking of a project.

AUSten -, for using time dollars and other alternative currencies. An online system for managing alternative currencies. This is good for time banks, time dollars and local exchange trade systems (LETS). Developers are members of Austin Time Exchange

Active Admin is a Ruby on Rails plugin for generating administration style interfaces. It abstracts common business application patterns to make it simple for developers to implement beautiful and elegant interfaces with very little effort. Customizable global navigation allows you to create usable admin interfaces for your business. Use the bundled Devise configuration or implement your own authorization using the provided hooks. Use scopes to create sections of mutually exclusive resources for quick navigation and reporting. Add buttons, links or other content in the “Action Items” section on each screen. Index screens are available in many styles. The default, shown here, is a table view, but Active Admin also supports Grids, Blocks and a Blog view. Allow users to filter resources by searching strings, text fields, dates, and numeric values. Customize the sidebar sections with a simple DSL built in to Active Admin.