Chrome //
Extensions 
Chrome
Web store
select chrome_id_no,plugin_tag_line,plugin_name,plugin_icon,sitemap_url,oldvsnew_comment from final_chrome_totaldata_sept2022 where MATCH(plugin_name) AGAINST('+ratio' IN Boolean MODE) order by users desc
Ultrawide Display Aspect Ratio for Netflix
Provides multiple aspect ratio fill modes for movies and shows on Netflix®
WCAG Luminosity Contrast Ratio Analyzer
Pick colors from your Web, compute contrast, get suggestions. Preview with challenged visions. Versatile Color Dev Extension Tool
Youtube like to view ratio
Displays the percentage of likes to views, more popular videos have a higher ratio.
Sample Ratio Mismatch (SRM) Checker
Automatically performs Sample Ratio Mismatch (SRM) test and flags potential issues on supported experimentation platforms.
easy Aspect Ratio Calculator
Easily calculate aspect ratios from sizes or sizes from an aspect ratio
View-Like Ratio for YouTube
Add display to the YouTube watch page to show a view-to-like ratio or percentage.
YouTube Likes Ratio
Shows percent of viewers who liked the video. Useful proxy for the old like:dislike ratio.
Guzinta Math: Ratio Names
Math lesson app for introducing ratios. Video instruction, worked examples, guided practice, and instructor notes.
Guzinta Math: Ratio Tables
Math lesson app for for teaching ratio tables and rates. Video instruction, worked examples, guided practice, and instructor notes.