Command-line interface description language

RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp).

JavaScript crusher, code minification

RegPack is a packer intended for use on minified Javascript code.
It is mostly suited to small size constraints (1kb, up to 4kb).

The streaming build system.

Flynn simplifies deploying and maintaining applications. Instead of using complex configuration management systems, Flynn allows self-serve management of containerized deployments, making life easier for ops and developers.

ack is a tool like grep, optimized for programmers

Designed for programmers with large heterogeneous trees of source code, ack is written purely in portable Perl 5 and takes advantage of the power of Perl's regular expressions.

The PHP Coding Standards Fixer tool fixes most issues in your code when you want to follow the PHP coding standards as defined in the PSR-1 and PSR-2 documents.

Kint for PHP is a tool designed to present your debugging data in the absolutely best way possible.

In other words, it’s var_dump() and debug_backtrace() on steroids. Easy to use, but powerful and customizable. An essential addition to your development toolbox.

Pencil is built for the purpose of providing a free and open-source GUI prototyping tool that people can easily install and use to create mockups in popular desktop platforms.

Sqitch is a database change management application.
Sqitch is not integrated with any framework, ORM, or platform. Rather, it is a standalone change management system with no opinions about your database engine, application framework, or your development environment.

Remove Image Backgrounds Beta

Instantly create masks, cutouts, and clipping paths online

YSlow for PhantomJS

Online diagram/mockups design.

A JavaScript Code Quality Tool. JSHint is a tool that helps to detect errors and potential problems in your JavaScript code.

Rich tools for instrumenting, analyzing, and visualizing web apps.

Check easily whether a gem is ready for Rails 4 or not.

A tool for easy online testing and sharing of database problems and their solutions.

A CLI tool for detecting frontend SPOF, mainly blocking scripts and CSS

Tabula helps you liberate data tables trapped inside PDFs