Padre is a Perl IDE, an integrated development environment, or in other words a text editor that is simple to use for new Perl programmers but also supports large multi-lingual and multi-technology projects.

Takes a snapshot with your Mac's built-in iSight/FaceTime webcam every time you git commit code, and archives a lolcat style image with it.

In-browser code editing made bearable....

For a plethora of languages (more than just those i tagged it with) also offers vim keybindings

We make it possible for you to build serverless applications with our secure, scalable web APIs for web and mobile development.

Obnoxiously easy iOS development with RubyMotion

Opa is an open source, simple and unified platform for writing web applications. All aspects are directly written in Opa: Frontend code, backend code, database queries and configuration. And everything is strongly statically typed.

Build HTML5/JavaScript mobile apps that automatically transform to the native look-and-feel of iOS, Android and BlackBerry. Take advantage of Kendo UI Mobile’s unique adaptive rendering to target multiple phone and tablet platforms with single UI codebase. Learn more

RubyMotion is a revolutionary toolchain for iOS.
It lets you quickly develop and test native iOS applications for iPhone or iPad, all using the awesome Ruby language you know and love.

command line sass compiler written in C
SassC is a wrapper around libsass (http://github.com/hcatlin/libsass) used to generate a useful command-line application that can be installed and packaged for several operating systems.

Desktop WebKit wrapper for HTML/CSS/JS applications.

A lightweight server clone of Amazon S3 that simulates most of the commands supported by S3 with minimal dependencies. Used primarily for offline development without incurring s3 cost or latency.

The Last Rocket was an experiment with two goals: make an awesome iOS game and document the process to better understand what goes into making an awesome game. Lift Off is the resulting document. Less “how to”, more “what have I done!”, this Development Diary is just that, a diary, consisting of equal parts enthusiasm, and introspection.

It's like Dropbox for your app's data.


A scalable real-time backend for your web app
Build apps really fast without the hassle of managing servers.

Cocoa Touch library for finding information on an iOS device's owner. Inspired by Square's iOS app.

Rust a safe, concurrent, practical language

Mojito is a sweet (and minty!) MVC application framework built on YUI 3 that enables agile development of Web applications. Mojito allows developers to write client and server components in the same language (JavaScript), using the same framework. Because Mojito applications are written in JavaScript, they can run on the client (in the browser) and on the server (with Node.js). In addition, Mojito has built-in support for internationalization, testing, and building documentation.

The Parse platform is a one-stop solution for your mobile backend. If you need to persist data from your clients to a server, you can use our platform and SDK to easily send and retrieve data to our servers.

Rainbow is a code syntax highlighting library written in Javascript.
It was designed to be lightweight (1.2kb), easy to use, and extendable.
It is completely themable via CSS.

an interactive git tutorial written with git and ruby

WAT Driven Development Perfect typing thanks to Gary Bernhardt's WAT in your terminal

A free testing service for mobile developers, managers and testers.
Makes beta testing your iOS apps, and seeing what people are using even easier. Great looking stats. Maybe even useful After beta? Not sure.

Enyo is an open source object-oriented JavaScript framework emphasizing encapsulation and modularity. Enyo contains everything you need to create a fast, scalable mobile or web application:

Built from the ground-up for mobile first - Enyo powers webOS, and was designed from the beginning to be fast and work great on mobile devices
Now available for desktop and cross-browser development - Enyo 2.0 now runs across mobile environments and desktop browsers including Chrome, Firefox, and Internet Explorer
Highly customizable and extensible - Enyo core can be expanded with modules, UI widgets, and more
Lightweight and fast - Enyo 2.0 core is about 17KB gzipped, and built for fast application rendering and performance
Simple, self-contained, and easy to digest - Build increasingly complex functionality starting with simple, reusable components
Built to scale - Enyo was created on the principles needed to build vast, complex mobile and web applications
Open Source - Enyo is available under the Apache License, Version 2.0.

simulates one or two finger on iOS using a mouse. great for testing

Phantom Limb makes desktop browsers simulate touch events
has a bookmarklet to activate it too... ooh aaah

memory management techniques for iOS

Let your users upload photos in your app from any of their favorite photo services, not just photos they have stored locally. Completely free to use!

A skeleton application framework using Ember.js and Rake Pipeline.

Amber is an implementation of the Smalltalk language that runs on top of the JavaScript runtime.

"Project Kotlin" is a codename for a statically typed programming language compiled to JVM byte code and JavaScript.
It is developed by JetBrains and distributed under Apache 2 Open Source License.

the Ember.js todo app ported to a variety of javascript mvc frameworks

Can (optionally) do single-file servers like Camping. and... yeah I dunno. seems to want to be extremely minimalist framework

a faster, mor minimal, alternative to Moose. "This module is an extremely light-weight, high-performance Moose replacement. It also avoids depending on any XS modules to allow simple deployments. The name Moo is based on the idea that it provides almost -but not quite- two thirds of Moose."

Dancer is a simple but powerful web application framework for Perl, inspired by Ruby's Sinatra.

Tinycon allows the addition of alert bubbles and changing the favicon image. Tinycon gracefully falls back to a number in title approach for browsers that don't support canvas or dynamic favicons.
Alerts in the favicon allow users to pin a tab and easily see if their attention is needed.

Say goodbye to SDKs, compilers and hardware. Simply write your app using HTML, CSS or JavaScript, upload it to the PhoneGap Build service and get back app-store ready apps for Apple iOS, Google Android, Palm, Symbian, BlackBerry and more.
By compiling in the cloud with PhoneGap Build, you get all the benefits of cross-platform development but can still build apps just the way you like.

why the javascript #! paths are bad

xcodebuild-rb is a RubyGem that provides a Ruby interface to the xcodebuild utility that ships with Xcode in the form of a series of Rake tasks. This gem only supports Xcode 4 (you can try it with 3.x, but YMMV). It makes it simple to run your builds from the command line, especially on remote machines such as Continuous Integration servers.

A functional programming language that compiles to javascript

Squad is a web-based collaborative code editor.
We make it simple to open, edit and share code in real time.

CouchApps are JavaScript and HTML5 applications served directly from CouchDB. If you can fit your application into those constraints, then you get CouchDB's scalability and flexibility "for free" (and deploying your app is as simple as replicating it to the production server).

backbone-couchdb: Give your couchapp some backbone

A dual (localStorage and REST) sync adapter for Backbone.js

mac specific walkthrough of testing and serving from osx during dev

How to create offline webapps on the iPhone

decent looking presentation with link to online example

Hijack: Provides an irb session to an existing ruby process.

An example application to show a simple integration between Rails and Twitter

SCREENCASTS FOR SERIOUS DEVELOPERS

(link is to their inbound service)
$1.50 per 1,000 e-mails ($0.00015 ) with no monthly fee. You buy "credits" in advance.

A creative-commons book on Backbone.js for beginners and advanced users alike. How to write modular JavaScript apps for desktop and mobile.

ActiveLdap provides an object oriented interface to LDAP

A listing of the officially registered URL schemes

Airbrake collects errors generated by other applications, and aggregates the results for review.

For rapidly building functional Cocoa applications using WebKit (HTML, CSS and JavaScript).

Create Mac apps.
Use HTML5 for the UI.
Script it with anything.
Can not possibly be simpler.

Caveman is a package that parses and validates HTML5 cache manifests. HTML5 applications are notoriously picky about their cache manifests, and it is difficult to check that all of the components are as they should be.

Popcorn makes video work like the web. We create tools and programs to help developers and authors create interactive pages that supplement video and audio with rich web content, allowing your creations to live and grow online.