Dex is a MongoDB performance tuning tool that compares queries to the available indexes in the queried collection(s) and generates index suggestions based on simple heuristics.
mtools is a collection of helper scripts to parse and filter MongoDB log files (mongod, mongos), visualize log files and quickly set up complex MongoDB test environments on a local machine.
Maily Herald is a Ruby on Rails engine that helps you send and manage your mailings.
Think of Maily as a self-hosted Mailchimp® you can easily integrate with your site.
Free online service that allows you to test your emails for Spam, Malformed Content and Mail Server Configuration problems
Online test to help speeding up heavy web pages
SVGOMG is SVGO's Missing GUI, aiming to expose the majority, if not all the configuration options of SVGO (Nodejs-based tool for optimizing SVG vector graphics files).
Mattermost is a self-hosted solution for bringing all your team communication to one place, and making it searchable and accessible anywhere
Diagnostic.css is a stylesheet which allows the user to test for common errors in a page's markup.
Build cross platform desktop apps with web technologies
UI toolkit for building desktop apps with Electron.
The HTTP Archive tracks how the Web is built.
N1 is an open-source mail client built on the modern web with Electron, React, and Flux. It is designed to be extensible, so it's easy to create new experiences and workflows around email. N1 is built on the Nylas Sync Engine which is also open source free software.
SHML is a shell framework for faster and easier script development. HTML has CSS, Unix-like shells have ANSI/VT100 Control Sequences. SHML makes is easy to apply style to your shell scripts without trying to remember that yellow is \033[33m instead it's $(color yellow).
spaCy is a library for industrial-strength natural language processing in Python and Cython. It features state-of-the-art speed and accuracy, a concise API, and great documentation.
Chrome extension for detecting and simulating frontend Single Points Of Failure. Detects likely third-party single points of failure as you browse and allows you to Simulate 3rd party resources being unavailable.
Also, here: https://chrome.google.com/webstore/detail/spof-o-matic/plikhggfbplemddobondkeogomgoodeg
Copy text to the clipboard shouldn't be hard. It shouldn't require dozens of steps to configure or hundreds of KBs to load. But most of all, it shouldn't depend on Flash or any bloated framework.
That's why clipboard.js exists.
Otto knows how to develop and deploy any application on any cloud platform, all controlled with a single consistent workflow to maximize the productivity of you and your team.
Powerful slack-like open source group chat
htty is a console application for interacting with web servers. It’s a fun way to explore web APIs and to learn the ins and outs of HTTP.
Burp Suite is an integrated platform for performing security testing of web applications. Its various tools work seamlessly together to support the entire testing process, from initial mapping and analysis of an application's attack surface, through to finding and exploiting security vulnerabilities.