Quickscript

Quickscript 2.1

Free
Save and run arbitrary bits of JavaScript code on selected web pages in Safari.
 
2.1 (See all)

Quickscript is an extension that lets you save and run arbitrary bits of JavaScript code on selected web pages in Safari. The most important word in the foregoing sentence is "save", because if you want to run a bit of JavaScript on a web page just once, you can always use Safari's built-in error console to do that. Scripts saved in Quickscript can run either on demand, when you select them in a menu; or automatically, whenever you visit a page that matches a URL pattern that's saved with the script.
I wrote Quickscript solely for my own use, so I could have a way to run little scripts of my own devising that don't deserve their own extension. Admittedly, it's not very polished (not that any of my extensions are!) or even fully baked. It is, however, at least minimally functional.
(In case you're wondering whether Quickscript supports scripts written for Greasemonkey, it doesn't. Quickscript is a lot simpler and less ambitious than Greasemonkey, and it makes no effort to be compatible with that Firefox extension.)
What's new in this version:
Updated the bundled jQuery to version 2.1.0.

Info updated on: