Development

Free, open-source developer workspace for code snippets, Markdown notes, HTTP requests, calculations, drawings, and developer tools.

Develop responsive web apps 5x faster! A must-have DevTool for all Front-End developers that will make your job easier.

Collaborative platform for API development providing design, specifications, testing, documentation, and requests with free and paid subscription plans.

Koala is a gui for Less, Sass, Compass and CoffeeScript. Koala can run in windows, mac, and linux.

Cypress is a front end automated testing tool created for the modern web. Cypress is built on a new architecture and runs in the same run-loop as the application being tested. As a result Cypress provides better, faster, and more reliable testing for anything that runs in a...

RunJS is an JavaScript playground that auto-evaluates your code as you type and outputs the results to a console panel.

MAMP installs a local server environment in a matter of seconds on your computer. It comes free of charge, and is easily installed. MAMP will not compromise any existing Apache installation already running on your system.

Open source virtualization tool supporting x86/AMD64, runs on Windows, Linux, Mac, Solaris. Offers portable, lightweight, ad-free use.

Sequel Pro is a fast, easy-to-use Mac database management application for working with MySQL databases.

Web developers: you can develop as you would on a real website, without having to buy or manage a server. If you're new to web development, we think Emporter is one of the easiest servers to use.

Dash is an API Documentation Browser and Code Snippet Manager. Dash stores snippets of code and instantly searches offline documentation sets for almost any API you might use. You can even generate your own docsets or request docsets to be included.

Docker is an open-source engine that automates the deployment of any application as a lightweight, portable, self-sufficient container that will run virtually anywhere.

A fast and friendly git client for Mac and Windows.

Open-source browser with Gecko engine, supporting HTML add-ons and providing privacy features like Enhanced Tracking Protection and third-party cookie blocking.

Use Kaleidoscope to spot the differences in text and image files. Review changes in seconds with the worlds most advanced file comparison application.

Transmit is a fast and wonderful file transfer app. It supports every major cloud storage provider, and it looks awfully nice.

Free, extensible code editor with Git integration, AI-driven IntelliCode, and 30,000+ extensions, supporting various languages like Python, Java.