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
Convert MySQL Queries to MongoDB Syntax
A better way to conduct remote interviews
WebRTC based video chat + code editor = Awesome interviews
csscss will parse any CSS files you give it and let you know which rulesets have duplicated declarations.
manifestR is a bookmarklet, which you drag to your bookmarks bar. Then, when you visit any page, you can click the manifestR button, and it will create an HTML5 appcache manifest file for that page.
Set of tools for testing with older or newer IE browsers
A debugger for RESTful web services.
Codebender is an embedded development platform with an emphasis on the Arduino and it’s completely web-based, so you don’t have to install, manage and update anything.
MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stability.
dbv.php is a database version control web application featuring schema management, revision scripts, and more!
Instant coding answers via the command line.
Hurl.it makes HTTP requests.
Choose the request method, customize headers and POST parameters, add basic authorization or OAuth credentials, and even follow redirects. Then view the nicely formatted request and response.
It's the perfect tool for testing APIs. Just enter a URL and click send.
Testing an HTTP Library can become difficult sometimes. PostBin.org is fantastic for testing POST requests, but not much else. This exists to cover all kinds of HTTP scenarios. Additional endpoints are being considered (e.g. /deflate). All endpoint responses are JSON-encoded.
Popcorn Maker makes it easy to enhance, remix and share web video. Use your web browser to combine video and audio with content from the rest of the web — from text, links and maps to pictures and live feeds.
Selfspy is a daemon for Unix/X11 and (thanks to @ljos!) Mac OS X, that continuously monitors and stores what you are doing on your computer. This way, you can get all sorts of nifty statistics and reminders on what you have been up to. It is inspired by the Quantified Self-movement and Stephen Wolfram's personal key logging.
WebScarab is a framework for analysing applications that communicate using the HTTP and HTTPS protocols.
Extends Twitter Bootstrap with additional lightweight JavaScript controls. Easy to install, customize, update, and optimize. All functionality covered by live documentation and unit tests.