mogenerator. Core Data code generation
3kjrswizzle. one-stop-shop for all your method swizzling needs
2.6kmach_inject. interprocess code injection for Mac OS X
832clicktoflash. WebKit plug-in to prevent automatic loading of Adobe Flash content
713markdownlive. Purpose-built Markdown Editor for Mac OS X with Live Preview
498mach_override. runtime function overriding for Mac OS X
438AutoLayoutShorthand. alternative system for creating and adding Cocoa Auto Layout constraints
357mach_star. code injection and function overriding for Mac OS X
256JREnum. macros that automate vending an NSString given an enum value (f.x. MyEnumToString(value))
151jrfeedbackprovider. nonviral cocoa source for implementing an application feedback panel (for bugs, feature requests and support)
114lich. Simple, general, human-sympathetic binary data format
106OAuthConsumer. fork of http://code.google.com/p/oauth/ 's Obj-C 2 API
81JRTranscriptView. Purpose-built text view for logging output. iOS 7+
66stressdrive. tool to completely fill a drive with random data and ensure it can be entirely correctly read back
62NSInvocation-blocks. Even-easier NSInvocation creation thanks to blocks
54SafariSessionSaver. Simple app that archives (and restores) Safari's currently-open windows+tabs
53JRErr. light at the end of the NSError** tunnel
51MagicHat. Objective-C Binary Documentation Tool. Think classdump with a hyperlinked GUI.
45bdalias. Simple Cocoa wrapper for Carbon Aliases
39Blitz. 20 slides. 15 seconds each. 5 minutes total. Go.
32JRTruthTable. tell it the current conditions, and it will tell you the current state
31node-mysql-oil. slick api on top of node-mysql
30clonedrive. paranoid bytewise drive cloning
27JRLog. Simple but flexible Log4J-like logging system for Objective-C
26ForceQuitUnresponsiveApps. Small background app for Mac OS X 10.6+ that automatically force-quits hung apps
24SafeToUnplug. tiny faceless background app that notfies you when it's actually safe to unplug a drive
23BlockStep. makes async code (Obj-C+Blocks) read kinda like sync code
21NSKeyedArchiver-butWithNSError. Categories to make NSKeyedArchiver & NSKeyedUnarchiver easier to use and report errors via NSError**
19CodaAutosaveOnDeactivate. Coda plugin to automatically save edited documents upon application focus resignation
18nginx-homebrew-support. support files for nginx-homebrew running as a machine-wide service
15OpenRadarApp. client-side app for automatically posting Apple-filed RADARs to OpenRadar
15webedit. think TextEdit but using WebKit
14ComplimentKit. opt-in to automatically receive flattrs (microdonations) as your users use your mac app
12hypo. why just #import a header file when you can import the object itself?
12git-subtree. __THIS REPO IS OBSOLETE__ - future development is in https://github.com/helmo/git/tree/subtree-updates
12JRKVOBlocks. Another take on integrating KVO with Blocks. 10.6+manual memory management assumed
12UIView-jr_addConstraints. easier notation for adding Auto Layout constraints to UIView
11gitignore. A collection of useful .gitignore templates
10CoreData-JRExtensions. Objective-C
10JRPDFLabel. Design your interface in Interface Builder using custom fonts without having to bundle them
10NSXReturnThrowError. Adds origin information to NSError and eases wrapping error codes
10JSRegexTeststand. simple single-page app to dynamically develop and test javascript regular expressions
9jryaml. Modern YAML for ObjC. Uses libyaml and Mike Schrag's MDYAML
9cocoagit. An Objective-C/Foundation implementation of the Git version control software.
9Transformation-Matrix-Funhouse. demo of -webkit-transform: matrix3d() (and transformation matrices in general)
9woplat. WOInstaller + Wonder Web Server Adaptor + OS Support Files
9unpopular. Chrome Extension that hides indicators of social status on GitHub (watchers, stars, forks) and Twitter (followers, retweets, favs)
8MAObjCRuntime. ObjC wrapper for ObjC runtime API
8UIView-jr_viewInSuperview. Let's make it easier to create an Auto Layout-ed UIView
7Function.introspect.js. Small javascript library that interrogates a function to return its name, argument names and source code
7TwitterReflectorDish. a simple twitter reflector dish (used for @c4)
6MiscMerge. textual templates for Obj-C
6BillingsCal. Simple comprehensive live reporting of Billings' database
6xib2pdflabels. tool that generates a multipage PDF, one page per JRPDFLabel view
6JRCenteringScrollView. UIScrollView subclass that uses Auto Layout to center its content
5IGIsolatedCookieWebView. A WebView subclass that uses its own internal non-permanent cookie storage and does not access or affect the system-wide shared cookie storage.
5atomicity. Blast from the Classic Mac OS past. Atomic Locks, Stacks, Guarded Stacks, Queues, and Guarded Queues
5ply. minimalist CSS library
5jsongo. like mongo db, except stores data in git-friendly flat json files
4