Stylebot

About

You pick an element and choose any changes you want to make from the editor. You can change the font, color, margins, visibility and a lot more. You can also code CSS manually.

★ Easy to use: Pick and style elements using UI actions
★ Simple & Quick: Changes are saved instantly
★ Code editor - Write your own CSS 
★ Readability Mode - Make articles on any site readable by hiding non-essential page elements like sidebars, footers and ads. 
★ Grayscale Mode - Turn on grayscale to reduce strain from websites

Homepage: https://stylebot.dev/
Twitter: http://twitter.com/ahujaankit
Bug reports and feature requests: https://github.com/ankit/stylebot/issues

Privacy Policy:

Stylebot has never collected and will never collect any personal data, browsing history etc. The permission to access websites is to only let you customize the CSS for any webpage and automatically apply your CSS when you visit the webpage in the future.

In the future, Stylebot may collect browser version, platform name, user's settings (except website list or any other data which can help identify user). This information is needed for decision on implementing new features, removing unused features or suggesting default settings for new users. It will happen only with your permission.