Lett Web Dimmer is a free Chrome extension developed by Lett Project. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension is designed to help users adjust the brightness level on any website, making it particularly useful for websites that do not support dark mode.

With Lett Web Dimmer, you have the ability to customize the brightness level to your preference. This extension offers several modes, allowing you to enable it on specific websites only or enable it on all websites and disable it on certain ones. Additionally, you can set custom brightness settings for individual websites while maintaining the extension's functionality on all other websites.

For those who want to use Lett Web Dimmer on local files like PDFs, the extension provides a simple solution. By going to Extensions > Details > Allow access to file URLs, you can enable the extension to work seamlessly on local files as well.

Lett Web Dimmer is a convenient tool for users who want more control over the brightness levels of websites, especially those without dark mode support. Its flexibility in adjusting brightness settings and compatibility with different websites make it a valuable addition to the Chrome browser.