Martian Open Source

Open Source is a defining part of Martian culture. We’ve created dozens of libraries and utilities for developers in diverse programming language communities, as well as tools and plugins for UI designers.

121: projects with
167K+: stars and climbing

Rails Startup Stack
Rails Startup Stack
Our selection of services, gems, guides, and materials to build and grow fast-paced businesses with Ruby on Rails.
Overmind
Overmind
Advanced Procfile-based process manager for web application development. With it, you can efficiently run several processes from your Procfile in a single terminal.
Hivemind
Hivemind
Advanced Procfile-based process manager to run several processes from your Procfile in a single terminal.
imgproxy
imgproxy
imgproxy is a fast and secure on-the-fly image optimization server.
AnyCable
AnyCable
Realtime server powering all types of realtime features: chats, collaboration, streaming, IoT data and more.
Autoprefixer
Autoprefixer
Autoprefixer lets you write your CSS rules without vendor prefixes.
PostCSS
PostCSS
One of the most popular and most depended-on npm libraries, PostCSS transforms CSS using an extensible plugins API. With more than 200 plugins, developers can lint CSS, support variables and mixins, transpile future CSS syntax, and more.
Martian Mono
Martian Mono
Martian Mono is a monospaced version of the Martian Grotesk for code style design. It's the first Evil Martians open source typeface on the market.
Logux
Logux
A new way to connect clients and server. Instead of sending HTTP requests (AJAX/REST), it synchronizes the log of operations between client, server, and other clients through WebSockets.
Astrograph
Astrograph
Lowers the entry threshold to the Stellar ecosystem and makes it possible to develop Stellar-based applications in hours instead of weeks—significantly reducing Stellar application development costs and time-to-market.
Browserslist
Browserslist
Defines and shares the list of target browsers between various frontend build tools.
Gon
Gon
A Ruby gem that provides a straightforward way to pass Ruby variables to the Rails frontend code.
Lefthook
Lefthook
Git hooks manager for Node.js, Ruby, or any other type of projects.
Ruby Next
Ruby Next
A transpiler and a collection of polyfills for supporting new and upcoming Ruby features in older versions and alternative implementations.
Size Limit
Size Limit
Linter for your JavaScript application that makes the Web lighter by preventing JS library bloat.
TestProf
TestProf
A Ruby test profiling toolkit with a collection of different tools to analyze your test suite performance.
Action Policy
Action Policy
An authorization framework for Ruby on Rails applications.
OKLCH Color Picker & Converter
OKLCH Color Picker & Converter
OKLCH Color Picker & Converter helps designers and web developers pick and convert colors in OKLCH and LCH color space, enhance a11y in their projects, and prepare for a future with a vibrant P3 color space.
Polychrom
Polychrom
A Figma plugin that ensures UI text is readable by leveraging the new APCA algorithm.
Harmony
Harmony
Accessible UI Color Palette
RunRuby.dev
RunRuby.dev
Brings Ruby programming into your browser, streamlining the process of writing and running Ruby code.
Yabeda
Yabeda
Make Ruby and Rails application monitoring as easy as possible.
Ossert
Ossert
An open source SaaS that provides maturity maintenance certification for Ruby libraries.
Nano ID
Nano ID
A nano-sized unique string ID generator for JavaScript.
Storeon
Storeon
An event-based, Redux-like state manager for React, Preact, Angular, Vue, and Svelte.
Color Name
Color Name
A Figma plugin that answers the question “How should I name this color?” once and for all.
PostCSS-modules
PostCSS-modules
A PostCSS plugin to use CSS Modules everywhere: not only at the client side.
State Machine
State Machine
A Sketch plugin that allows you to use ⌃⌘S to switch an active tab on a tab bar you’re designing, an active navigation section in a menu, or a page number in a pagination control.
Compo
Compo
A Sketch plugin that makes it easier to work with interface components.
Sort Me
Sort Me
A Sketch plugin that makes sorting artboards and layers dead simple.
Size Marks
Size Marks
A Photoshop™ script for web designers and frontend engineers.
Evil Blocks
Evil Blocks
A tiny JavaScript framework for web pages designed to split your app to separated blocks.
VFont
VFont
VFont is a library for mobile engineers and designers that simplifies work with variable fonts in iOS projects.
Gem Check
Gem Check
Gem Check lets users check out all the best Ruby practices in one place.
imgproxy-node
imgproxy-node
A JavaScript library for easily constructing URLs for images processed with imgproxy.
Evil Icons
Evil Icons
A simple and clean SVG icon pack with the code to support Ruby on Rails, Sprockets, Node.js, Gulp, and Grunt.
Visibility.js
Visibility.js
A JavaScript library that can detect if a browser tab is currently active for a user.
Clean Publish
Clean Publish
A tool for removing configuration files, fields, and development scripts from package.json before publishing to npm.
Nano Stores
Nano Stores
A tiny state manager for React, React Native, Preact, Vue, Svelte, Solid, Lit, Angular, and vanilla JS.
Nano Stores Router
Nano Stores Router
A tiny router for the Nano Stores state manager
Nano Stores Query
Nano Stores Query
A data fetcher library for Nano Stores state manager.
SugarSS
SugarSS
An indent-based CSS syntax for PostCSS.
Mock Suey
Mock Suey
A collection of tools to keep Ruby mocks in line with real objects.
apcach
apcach
JavaScript color calculator for composing colors with consistent APCA contrast ratio.
Action Policy GraphQL
Action Policy GraphQL
An integration for using Action Policy as an authorization framework for Rails GraphQL applications.
Logidze
Logidze
A Ruby library for tracking Active Record changes.
Clowne
Clowne
Clowne is a powerful and customizable Ruby gem for cloning models. Clowne works with pure Ruby, ActiveRecord, and Sequel.
Browserslist IntelliJ Plugin
Browserslist IntelliJ Plugin
Adds support for Browserslist config files to your favourite IDE
Dip
Dip
A tool to simplify and smooth the Docker Compose utilizing.
Engems
Engems
A collection of tools and guides on building component-based Rails applications on top of Rails Engines and gems
Parser
Parser
The only existing tooling-grade Ruby parser.
Terraforming Rails
Terraforming Rails
A collection of tools and guides to help turn legacy Ruby on Rails code into legendary code.
Evil Martians Telephony
Evil Martians Telephony
A cloud-based Martian swiss army knife for voice calls, VoIP, conferencing, and voicemail. Powered by VoxImplant
Anyway Config
Anyway Config
A configuration library for Ruby gems and applications.
Astrocore
Astrocore
An alternative, Rust-based implementation of stellar-core, the core component of the Stellar network.
Google Translate Diff
Google Translate Diff
A Ruby gem to use the Google Translation API for long texts on multi-lingual websites.
ebay_request
ebay_request
This Ruby gem for simplifies working with eBay XML APIs.
ebay_api
ebay_api
Ruby client to eBay RESTful JSON API.
PGTrunk
PGTrunk
Empower PostgreSQL migrations in Rails app.
RSpec SQLimit
RSpec SQLimit
A test-driven way to fight N+1 queries in ActiveRecord.
GraphQL Fragment Cache
GraphQL Fragment Cache
Improve GraphQL Ruby applications performance with the ability to cache response fragments.
Blood Contracts
Blood Contracts
A Ruby gem for runtime data validation and monitoring.
Liquor
Liquor
A safe and extensible templating language that compiles to Ruby.
GraphQL-AnyCable
GraphQL-AnyCable
GraphQL subscriptions for AnyCable.
xk6-cable
xk6-cable
The k6 extension helps with the implementation of a fully-featured load testing scenario involving AnyCable Demo application xk6-cable.
CarrierWave BombShelter
CarrierWave BombShelter
A Ruby gem designed to detect an image’s real dimensions without decoding it.
ACLI
ACLI
An Action Cable command-line client written in mRuby.
wsdirector
wsdirector
A command line tool for testing WebSocket servers using scenarios.
Lite Cable
Lite Cable
Lightweight Action Cable implementation to bring Rails real-time experience to any Ruby application.
Rubanok
Rubanok
A magical Ruby DSL for transforming params in HTTP controllers.
Skooma
Skooma
A Ruby library for validating API implementations against OpenAPI documents.
JSONSkooma
JSONSkooma
A Ruby library for validating JSONs against JSON Schemas.
ArLazyPreload
ArLazyPreload
Lazy loading associations for Active Record models.
Store Attribute
Store Attribute
An ActiveRecord extension which adds typecasting to store accessors.
N+1 control
N+1 control
The tool offers RSpec and Minitest matchers designed to prevent the "N+1" queries problem.
GraphQL Ruby Persisted Queries
GraphQL Ruby Persisted Queries
A plugin for graphql-ruby to reduce HTTP request sizes by sending a request ID instead of an entire selection set.
Fixturama
Fixturama
A collection of helpers that allows writing elegant Ruby tests.
StoreModel
StoreModel
A Ruby gem to simplify working with JSON database columns which are used to store various unstructured data.
Active Delivery
Active Delivery
A framework that provides an entry point for all types of Rails notifications.
Abstract Notifier
Abstract Notifier
A framework that provides an Action Mailer-like API for describing notifier classes.
Isolator
Isolator
Isolator helps detect non-database side effects during database transactions.
after_commit everywhere
after_commit everywhere
Allows to use ActiveRecord transactional callbacks outside of Rails models.
Feature Toggles
Feature Toggles
A Ruby mechanism for pending product features that take longer than a single release cycle.
dry-initializer
dry-initializer
A small domain-specific language for building class initializers with parameters and options.
Evil::Struct
Evil::Struct
Nested structure with type constraints for Ruby, based on the dry-initializer DSL
Evil::Client
Evil::Client
Human-friendly DSL for writing HTTP(s) clients in Ruby
EvilSeed
EvilSeed
A Ruby tool for creating partial anonymized dump of your database based on your app models
Freezolite
Freezolite
A Ruby gem that turns the frozen_string_literal compile option automatically
RuboCop GraphQL
RuboCop GraphQL
A Ruby gem containing a number of rubocop rules to keep GraphQL-related code tidy.
Kuby AnyCable
Kuby AnyCable
A Kuby plugin designed for deploying AnyCable applications.
Active Event Store
Active Event Store
A wrapper over Rails Event Store which adds conventions and transparent Rails integration.
Ruby Bytes
Ruby Bytes
The toolkit to build, deploy and install application templates for Ruby and Rails applications.
view_component-contrib
view_component-contrib
A collection of extensions and developer tools for ViewComponent.
RuboCop Markdown
RuboCop Markdown
The tool to run Rubocop against your Markdown files to make sure that the code follows style guidelines and has valid syntax.
RuboCop Gradual
RuboCop Gradual
RuboCop Gradual is a tool that helps track down and fix RuboCop offenses in your code gradually.
omniauth-ebay-oauth
omniauth-ebay-oauth
OmniAuth Strategy for eBay Apps (for using with eBay REST APIs).
activerecord-postgres_enum
activerecord-postgres_enum
A Ruby gem to integrate PostgreSQL's enum data type into ActiveRecord's schema and migrations.
Active Record Slotted Counters
Active Record Slotted Counters
Slotted counters technique implementation for Ruby on Rails.
GraphQL::Connections
GraphQL::Connections
Provides additional implementations of cursor-based paginations for GraphQL Ruby gem.
Schked
Schked
A framework-agnostic scheduler for running recurring jobs.
Downstream
Downstream
A straightforward way to implement communication between Rails Engines using the Publish-Subscribe pattern.
Quantizr
Quantizr
Fast library for converting RGBA images to 8-bit palette images. Written in Rust; can be used with C
sidekiq-fair_tenant
sidekiq-fair_tenant
Sidekiq middleware to re-route excess jobs of “greedy” users to slower queues
URI::IDNA
URI::IDNA
A IDNA2008, UTS46, IDNA from WHATWG URL Standard and Punycode implementation in pure Ruby.
Inertia Rails Contrib
Inertia Rails Contrib
A collection of extensions, developer tools, and the community documentation for Inertia's Rails adapter.
TurboMount
TurboMount
Add components from React, Vue, Svelte, and other frameworks to your Hotwire application.
Fullstaq Ruby Docker images
Fullstaq Ruby Docker images
Unofficial Docker images for Fullstaq Ruby, a custom build of Ruby MRI
Sidekiq::Grouping
Sidekiq::Grouping
Allows identical Sidekiq jobs to be processed with a single background call.
sidekiq-postpone
sidekiq-postpone
Bulk-pushes tasks to Redis when you need it to.
Sidekiq limit_fetch
Sidekiq limit_fetch
Sidekiq strategy to support a granular queue control—limiting, pausing, blocking, querying.
protoc-gen-terraform
protoc-gen-terraform
Generates Terraform provider schemas and unmarshallers from protobuf definitions.
protobuf-as
protobuf-as
Protobuf AssemblyScript compiler.
PgClosureTreeRebuild
PgClosureTreeRebuild
A Ruby gem to quickly rebuild trees in PostgreSQL implemented via the Closure Tree pattern.
KeyUX
KeyUX
JavaScript library to improve keyboard UI of web apps.
Nano Events
Nano Events
Simple and tiny event emitter library for JavaScript.
Print Snapshots
Print Snapshots
Print Jest snapshots to check the CLI output of your tool.
Check TypeScript Definitions
Check TypeScript Definitions
Unit tests for TypeScript definitions in your JavaScript open source library.
Convert Layout
Convert Layout
A JavaScript library to convert text from one keyboard layout to another.
Dual Publish
Dual Publish
Allows you to dual publish projects as both ES modules and a CommonJS package to npm.
tiller-releases-converter
tiller-releases-converter
A tool to automate Helm's tiller migration from ConfigMap releases backend to Secrets-based backend for Kubernetes and Helm users.
Micro Transform
Micro Transform
Tiny library to transform JavaScript objects between different states.