Script Debugger for Mac

Used Script Debugger for Mac?

Script Debugger Analysis

AI Assisted Content · June 11, 2026

Not written by CNET Staff.

Script Debugger is a robust utility designed for developers working with AppleScript and JavaScript. This free application offers a suite of features that streamline the debugging process, including a user-friendly interface, syntax highlighting, and comprehensive error reporting. The tool aims to enhance productivity by enabling developers to identify and rectify issues within their scripts efficiently.

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Key features include the ability to set breakpoints, inspect variables, and step through code execution, which are essential for troubleshooting complex scripts. Additionally, Script Debugger supports AppleScript dictionaries, allowing users to access and utilize various scriptable applications. Overall, this utility provides a valuable resource for developers seeking to improve their scripting capabilities and ensure their code runs smoothly.

Script Debugger for Mac

Used Script Debugger for Mac?

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Full Specifications

GENERAL

Release: December 19, 2019

Latest update: June 11, 2026

Version: 7.0.10

OPERATING SYSTEMS

Platform: Mac

Operating System: Mac OS X

Additional Requirements

macOS Catalina
macOS Mojave
macOS High Sierra
macOS Sierra
OS X El Capitan

POPULARITY

Total Downloads: 1,329

Downloads Last Week: 0

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Last Updated

User Reviews

4.8/5

18 User Votes

A must-have for all serious Applescripters
bperry1September 15, 2010
Pros
Excellent debugging tools and persistent variable viewing make this app indispensable for anyone who writes more than a few lines of applescript. Solid and well-supported.
Cons
No real cons, one wish, It's so great I wish I could also use it directly for Xcode Applescript Studio files, but it is only for "plain" Applescript.
Summary
Why buy when Script Editor is free? Because it will more than pay for itself in time saved and less hair-pulling the first time you debug a good-sized script.
If you you write AppleScripts, you need this
Cloetus_1November 25, 2008
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />Some jokingly refer to AppleScript as the read-only programming language. It can be opaque... SD lets you inspect the actual values the app you're trying to script, in the moment so you REALLY know what's going on. On the flip side, it has all the sweet programming goodness like breakpoints and such. I refuse to write anything but the simplest scripts without it.
Worth the Money...
gaseous1November 29, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />This is a fantastic program for AppleScript development. It has increased my productivity with the language by an order or two of magnitude. <p> The dictionary browser is without peer and helps enormously to clarify application specific command context. Likewise, the debugger is powerful in that you can change variable values on the fly and see program status at numerous breakpoints. All this functionality is in one place, which means convenience and time savings as well as flexibility. <p> I empathiize with other reviewers who would like a cheaper product, but SD provides a very powerful development environment similar to that of other commercial programming solutions. Unfortunately, AppleScript appears to be a fairly specific development environment in that it is dependent on the dictionary of each application with which it communicates. I think it is unfair to expect this product to be an interface for Objective C or other languages such as Perl, Python and the like. Besides, SD's dedication to AppleScript is what makes it such a powerful environment<p> <p> Even if your time is only worth $10 an hour, it won't take much development effort to justify the cost of this software.
Excellent software
RogueAugust 30, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />I have been using Script Debugger for a few years now. It has save me many many hours. The scripts I've been able to write has saved the company many hours. What use to take someone all day to do can now be done in a few hours, work flow has increased a lot. Worth the money IMHO.
Now beautiful too!
blizzasterFebruary 9, 2006
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />Script debugger has always been powerful, but since migrating to OSX from OS9, it has felt a bit behind the times. This update to 4.0 adds a shiny new interface, and lots of great functionality. It is fabulous. Congrats and thank you Late Night Software. This is just great.
So good, it's scary...
mckennaMay 19, 2005
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />I am a better AppleScripter because of Script Debugger -- period. I have used (and continue to use) the debugging feautures to fix my scripts, learn how AppleScript works and "see" how the scripts of others work. I also use the "Explorer" feature of Script Debugger to improve my understanding of the dictionary -- in some cases, it's the quickest and easiest way to decipher an incoherent/ poorly written AppleScript dictionary. As for the criticism that it's expensive -- it's saved me enough time over the years to more than pay for itself. If you are going do something well, get the best tool for the job. In the case of AppleScript, the best tool is Script Debugger. This is one of my "desert island" applications.
Simply the best...
djstoneOctober 27, 2003
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />script editor on the market. Fantastic value.
Great Concept, Execution Half-There
Wm. CerniukSeptember 14, 2003
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />I really love this tool except for the fact that it cannot display any variable contents that exists out of the main entry point routine. This limitation is exceedingly frustrating and requires modification of code logic, temporary variables and other invasive techniques to actually debug. On the other hand, the Apple editor is and always has been absolutely pathetic when compared to even SimpleText. While I am grateful that ScriptDebugger exists (and Apple should be too!), I would really like to see full variable contents display regardless of execution stack depth level.
Top notch IDE!
ConcernedCitizenMay 3, 2003
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />The best AppleScript IDE out there. In fact, it's one of the best Mac apps, period!
Top notch product!
ConcernedCitizenMay 3, 2003
Pros
Cons
Summary
This review was originally posted on VersionTracker.com.<br />Best AppleScript IDE out there. In fact one of the best designed Mac apps period!

Developer’s Description

By Late Night Software

Complete replacement for Apple's Script Editor.

Script Debugger is a complete replacement for Apple's Script Editor. It offers no limit on script size as well as powerful editing, debugging and dictionary tools.