Wraith is a screenshot comparison tool, created by developers at BBC News. Wraith uses a headless browser to create screenshots of webpages on different environments (or at different moments in time) and then creates a diff of the two images; the affected areas are highlighted in blue. There are two main modes for using Wraith, 'capture' mode and 'history' mode. Wraith has some built-in JavaScript and configuration file templates for you to get started with right away.
If you are using multiple Web browsers (e.g. Opera is fast, but some important websites only support IE), then this small GUI tool helps you in opening links (e.g. the ones that you click in an Instant Messenger) in the browser you like.
dotjs is a Google Chrome extension that executes JavaScript files
...It works by mapping JavaScript files to domains, so when a user visits a site, the corresponding script is executed seamlessly in the background. This approach enables users to personalize and enhance website behavior without modifying the original source code or relying on heavy user script managers. The tool is particularly useful for developers and power users who want to tweak interfaces, automate repetitive actions, or inject additional functionality into web pages. dotjs emphasizes simplicity by using a file-based structure where each script corresponds directly to a domain, making it easy to manage and organize customizations. It integrates smoothly into the browser environment and requires minimal setup to get started.