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Addmodern Postgres terminal written in Rust. psql-compatible, with built-in DBA diagnostics and AI assistant.
A psql-compatible terminal written in Rust with built-in DBA diagnostics and AI assistant. Single binary, no dependencies, cross-platform.
Créez votre RPG sur navigateur en HTML5 !
Make Your Own Game with RPG Maker.
Games are hard to make, right? Not with RPG Maker! It’s as simple as starting a New Project. We provide the tools and assets so you can start making your dream game in seconds!
The lightweight, user-friendly, distributed relational database built on SQLite. Fault tolerance and high availability with zero hassle.
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Replicating SQLite using the Raft consensus protocol. rqlite is a distributed system that provides a replicated SQLite database. rqlite is written in Go and uses Raft to achieve consensus across all the instances of the SQLite databases. rqlite ensures that every change made to the database is made to a quorum of SQLite files, or none at all.
Corrective lenses for curmudgeonly readars in your life.
This is a drop-in replacement for R——'s (now defunct) metadata service. It works with your existing R—— installation, it's backwards-compatible with your library, and it takes only seconds to enable or disable. You can use it permanently, or temporarily to help you add books the R—— service doesn't have yet. It works equally well with ebooks and audiobooks.
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The Rspack-based Build Tool. Speed up your webpack application.
Rsbuild is an Rspack-based build tool for the web. Rsbuild is an enhanced Rspack CLI, which is more user-friendly and out-of-the-box. Rsbuild is the Rspack team's exploration and implementation of best practices for web building. Rsbuild is the best solution for migrating from Webpack to Rspack, reducing configuration by 90% and getting 10x build speed.
Build Analyzer. Analyzer for Rspack & webpack.
Visualize the building process.
Rsdoctor is a build analyzer tailored for the Rspack ecosystem and fully compatible with the webpack ecosystem.
Rsdoctor is committed to being a one-stop, intelligent build analyzer that makes the build process transparent, predictable, and optimizable through visualization and smart analysis, helping development teams precisely identify bottlenecks, optimize performance, and improve engineering quality.
RSIBreak takes care of your health and regularly breaks your work to avoid repetitive strain injury (RSI)
Whether it's the health of your wrist or your eyes that concerns you, you need to take short breaks and it's all too easy to forget when you are busy.
🚀 Go Faster. Go Typed.
Think of Rslint as Rust Clippy but for TypeScript — more like a TypeScript extension than an ESLint plugin.
Rslint is a high-performance JavaScript and TypeScript linter written in Go. It offers strong compatibility with the ESLint and TypeScript-ESLint ecosystem, allowing for seamless replacement, and provides lightning-fast linting speeds.
A fast Rust-based web bundler. Build a high-performance frontend toolchain.
Fast, free and open-source spam filtering system.
Rspamd is an advanced spam filtering system and email processing framework that allows evaluation of messages by a number of rules including regular expressions, statistical analysis and custom services such as URL black lists. Each message is analysed by Rspamd and given a verdict that might be used by MTA for further processing (e.g. to reject a message, or add a special header indicating spam) along with other information, such as possible DKIM signature or modifications suggested for a message.
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Simple RSS-to-Mastodon autoposter.
A really simple script [rss :-)] to scrape RSS feeds and post them into a Mastodon account
rss feed statistics, feedburner alternative
Transform RSS feeds into beautiful reading formats for a better reading experience.
RSS.Beauty is an RSS beautification tool based on XSLT technology that transforms ordinary RSS/Atom feeds into elegant reading interfaces.
I consume the world via RSS feeds, and this is my attempt to keep it that way. This app uses the API of other websites and gives you an RSS feed in return. Quick and simple.
RSS-Bridge is a PHP project capable of generating RSS and Atom feeds for websites that don't have one. It can be used on webservers or as a stand-alone application in CLI mode.
The RSS feed for websites missing it.
RSS-Bridge is a PHP web application.
It generates web feeds for websites that don't have one.
🧡 Everything is RSSible.
RSSHub is the world's largest RSS network, consisting of over 5,000 global instances.
RSSHub delivers millions of contents aggregated from all kinds of sources, our vibrant open source community is ensuring the deliver of RSSHub's new routes, new features and bug fixes.
RSS-lambda transforms RSS feeds without RSS client lock-in.
There are RSS clients that can perform transformations on RSS feeds, e.g. only keep entries with certain keywords, or translate texts of the entries
However, using those features from the RSS clients will create RSS client lock-in that prevents you from moving to another RSS client if you desire
RSS-lambda is an application that perform transformations on the server-side instead so that you can freely move to another RSS client while keeping the transformations. It's also self-hostable so that you don't even need to rely on the official server instance!
RSSMonster is a self-hosted RSS reader for people who enjoy following their own sources. Read chronologically, organize subscriptions, and save useful articles. With optional AI processing, you can also explore related coverage, follow ongoing stories, and rank articles by quality or personal interest.
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rsync is an open source utility that provides fast incremental file transfer.
An open source utility that provides fast incremental file transfer. It also has useful features for backup and restore operations among many other use cases.
rsync is freely available under the GNU General Public License and is currently being maintained by Andrew Tridgell.
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rtcqs is a Python utility to analyze your system and detect possible bottlenecks that could have a negative impact on the performance of your system when working with Linux audio.
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rtfmbro provides always-up-to-date, version-specific package documentation as context for coding agents. An alternative to context7
rtGui is a web based front end for rTorrent - the Linux command line BitTorrent client. It's written in PHP and uses XML-RPC to communicate with the rTorrent client.
Open source real-time translation app for Android that runs locally.
RTranslator is an (almost) open-source, free, and offline real-time translation app for Android.
Connect to someone who has the app, connect Bluetooth headphones, put the phone in your pocket and you can have a conversation as if the other person spoke your language.
A rich web-based Ring Tone Text Transfer Language (RTTTL) composer.
The RTTTL format is still used today in some applications and devices such as hobbyist Arduino projects, IoT devices, and older mobile phones.
Modernize your VBE with enhanced project navigation and organization, static code analysis, unit testing, refactorings, and other modern-day essential functionalities.
Trying to tame the three-headed dog. Rubeus is a C# toolset for raw Kerberos interaction and abuses.
The Ruby Linter/Formatter that Serves and Protects.
RuboCop is a Ruby code style checker (linter) and formatter based on the community-driven Ruby Style Guide.
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Rubular is a Ruby-based regular expression editor. It's a handy way to test regular expressions as you write them.
your community gem host.
RubyGems.org is the Ruby community’s gem hosting service. Instantly publish your gems and then install them. Use the API to find out more about available gems. Become a contributor and improve the site yourself.
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A delightful Ruby way to work with AI through a unified interface to OpenAI, Anthropic, Google, and DeepSeek. A delightful Ruby way to work with AI. No configuration madness, no complex callbacks, no handler hell – just beautiful, expressive Ruby code.
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Free, interactive tutorials to help you discover Ruby idioms, in your browser!
turn your Ruby on Rails app into a mobile app.
Ruby Native turns a Rails app into iOS and Android apps. This gem is the Rails-side integration: view helpers, a YAML config file, endpoints auto-mounted at /native, and a CLI for previewing and deploying builds. Full docs, including the complete helper reference and config schema, live at rubynative.com/docs.
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Ruby Next makes modern Ruby code run in older versions and alternative implementations
Ruby Next is a transpiler and a collection of polyfills for supporting the latest and upcoming Ruby features (APIs and syntax) in older versions and alternative implementations. For example, you can use pattern matching and Kernel#then in Ruby 2.5 or mruby.
A web-app framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.
Related contents:
- The Unofficial 37signals/DHH Rails Style Guide @ Marc Köhlbrugge's GitHub Gist.
- Making the case for Rails monoliths over microservices @ thoughtbot.
- Part 1: How We Fell Out of Love with Next.js and Back in Love with Ruby on Rails & Inertia.js @ Hardcover.
- The One-Person Framework in practice @ Bram Jetten.
- Serving Large Files in Rails with a Reverse Proxy Server @ Write Software, Well.
- My puts Debugging Workflow in Rails Apps @ Paweł Urbanek.
- Tip: Put your Rails app on a SQL query diet @ Andrew Atkinson.
- Ruby on Rails: The Open-Source Blueprint @ The Miners.
- Engineering excellence starts on edge @ David Heinemeier Hansson.
- You're doing Rails wrong @ Banana Curving Machine.
- The Rails developers' guide to mobile app frameworks @ Masilotti.com.
- How I Audit a Legacy Rails Codebase in the First Week @ piechowski.io.
- Returning To Rails in 2026 @ markround.com.
- Different Approaches to Debugging Query Performance in Rails @ Saeloun.
- Rails 8: How to Auto-Generate Social Media Preview Cards @ DevBlog by Zil Norvilis.
- Scaling Rails at Aura Frames: Splitting to 8 Primary DBs and Reaching #1 in the App Store @ Andrew Atkinson.
A dynamic, open source programming language with a focus on simplicity and productivity. It has an elegant syntax that is natural to read and easy to write.
Related contents:
- The 60-Second Wait: How I Spent Months Solving the Ruby’s Most Annoying Gem Installation Problem @ Closer to Code.
- How Ruby Executes JIT Code: The Hidden Mechanics Behind the Magic @ Rails at Scale.
- How Ruby Went Off the Rails @ 404 media.
- Open Source is the Most Fragile and Most Resilient Ecosystem @ Peter Zhu.
- Frozen String Literals: Past, Present, Future? @ byroot's blog.
- When Your Hash Becomes a String: Hunting Ruby’s Million-to-One Memory Bug @ Closer to Code.
- In Praise of dhh @ Filipa Mendonça-Vieira.
- Optimizing Ruby performance: Observations from thousands of real-world services @ Datadog.
- Can Bundler Be as Fast as uv? @ Tenderlove Making.
- Why Ruby Still Feels Like Home After All These Years @ Caio Bianchi.
- Shrinking Ruby Hashes @ byroot's blog.
Component Library. Ruby gem for RubyUI Components.
A UI component library, crafted precisely for Ruby devs who want to stay organised and build modern apps, fast. Beautifully designed components that you can copy and paste into your apps. Accessible. Customizable. Open Source.
Infrastructure management and security software. Rudder is an easy to use, web-driven, role-based solution for IT Infrastructure Automation & Compliance.
Rudder is a configuration and security automation platform. Manage your Cloud, hybrid or on-premises infrastructure in a simple, scalable and dynamic way. Rudder is an easy to use, web-driven, role-based solution for IT Infrastructure Automation & Compliance.
Understand how your team codes with AI. Coding Agent Analytics for Claude Code.
Rudel gives engineering leaders visibility into Claude Code usage across their team. Track productivity, quantify ROI, and surface quality signals, automatically.
Exploring memory safety that's easier to use.
A programming language that is higher level than Rust but lower level than Go. Someday, anyways.
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An extremely fast Python linter and code formatter, written in Rust.
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An open source Flash Player emulator.
Made to run natively on all modern operating systems and browsers, Ruffle brings Flash content back to life with no extra fuss.
Multi-agent AI orchestration for Claude Code.
Orchestrate 100+ specialized AI agents across machines, teams, and trust boundaries. Ruflo adds coordinated swarms, self-learning memory, federated comms, and enterprise security to Claude Code — so agents don't just run, they collaborate.
🌊 The leading agent orchestration platform for Claude. Deploy intelligent multi-agent swarms, coordinate autonomous workflows, and build conversational AI systems. Features enterprise-grade architecture, self-learning swarm intelligence, RAG integration, and native Claude Code / Codex Integration
Create bootable USB drives the easy way.
Rufus is a utility that helps format and create bootable USB flash drives.
One command. 25 languages. Universal multi-language runner and smart REPL written in Rust.
A universal code runner and stateful REPL written in Rust. Execute Python, JavaScript, TypeScript, Go, Rust, C, C++, Java, Kotlin, Swift, and 15 more languages with a single command.
Secure code execution for AI applications.
run executes untrusted JavaScript and type-stripped TypeScript in a hardened QuickJS sandbox. Guest code can access only the host functions you provide.
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Easily run old versions of UNIX for PDP-11 on modern hardware
pkgx is a blazingly fast, standalone, cross‐platform binary that runs anything. It’s npx for everything else.
CLI tool for spawning and running containers according to the OCI specification.
Runbook Automation.
Enable Self-Service Operations: Give specific users access to your existing tools, services, and scripts. Rundeck by PagerDuty is an open source runbook automation service with a web console, command line tools and a WebAPI. It lets you easily standardize tasks to improve operational quality by deploying automation across a set of nodes.
Turn your operations procedures into self-service jobs. Safely give others the control and visibility they need.
Effortlessly run tasks and manage your services on AWS ECS (Elastic Container Service).
RunECS is a cross-platform tool available for macOS, Linux, and Windows.