Linguix

Linguix is an AI writing assistant, made by Textly Inc., that checks grammar, punctuation, and spelling in real time and offers to rewrite sentences for clarity as you type. It works as a browser extension across Chrome, Edge, and other major browsers, layering suggestions on top of tools people already use, including Gmail, Google Docs, ChatGPT, and Canva, and it's also available as a standalone web editor. Beyond basic correction, it scores writing quality based on factors like sentence length, vocabulary complexity, and passive voice, and it offers text-expansion shortcuts that can cut the time spent writing repetitive emails or social posts. The product supports checking in English, French, German, Spanish, Portuguese, Italian, and Polish, and its team features let organizations enforce a shared style guide and track how their employees are writing over time, including error counts. That combination of individual writing help and team oversight is aimed at sales, marketing, customer support, and other business teams that need consistent, professional written communication rather than at students or casual writers. Linguix is also available as a Grammar Check API for developers who want to build the correction engine into their own products. The company states it is trusted by more than 450,000 users and holds a number-one ranking on Product Hunt, though these figures come from the company's own marketing rather than independent verification.