Silicon Valley Dictionary - Urban dictionary meets Silicon Valley
Meta Tags - Meta Tags is a tool to debug and generate meta tag code for any website.
Writefull Thesaurus - A Google Docs add-on that uses AI to give you synonyms
Devhints - TL;DR for developer documentation
Dictionary Anywhere - Dictionary Anywhere is an open-source and easy-to-use browser extension for Mozilla Firefox and Google Chrome that allows you to check definitions easily while browsing the web.
OpenGraph.xyz - Check how search engines and social medias such as Google, Facebook, Twitter display your website