Userscripts is an open source Safari extension that lets you save and run arbitrary bits of JavaScript (and CSS) code for the websites you visit. It implements a code editor right in your browser for a simple method of creating, editing and saving your code.
Features:
- Open source
- Straightforward usage
- Multiple domain specific scripts
- CSS or JS
- Automatically locally saves your scripts to the file system
- "Advanced" Javascript editor with auto complete
- No user tracking
Use cases:
- Automatic page redirection
- Website page manipulation (styling, element creation)
- Custom ad-blocking
- Website custom code injection
If you're looking for a way to easily create quality of life Javacript code snippets for your web browsing experience, give Userscripts a try.