Languagetool

LanguageTool is an AI grammar, spelling, and style checker supporting 30+ languages. It offers real‑time browser extensions, desktop and Word add‑ins, advanced Picky Mode, paraphrasing, and an API for developer integration.

This AI tool is a free online writing assistant with advanced features to enhance writing skills and prevent plagiarism.

Grammar Checker is a free AI tool that corrects grammar, spelling, and punctuation errors. It also provides suggestions to improve your writing style and polish your text.