Roman Grinyov is a
browser extension publisher,
most of their extensions are
productivity extension and
search tools extension.
November 19th, 2021
Check the markup of the current page using different markup validators
November 25th, 2021
Uppercase and lowercase alphabets
January 18th, 2022
Search for selected text using the context menu
November 20th, 2021
Count selected characters
Prepare pieces of text (icons, emoji, phrases, etc) and keep them always at hand
Simple extension for quick notes with a characters' counting feature
You could send emails to publisher.