Grammarly is an English language writing-enhancement platform.

Byword is simple and efficient text editor for Markdown.

Ginger is a grammar checker, an online tool that will correct any mistake you make.

Ludwig is a smart translator and linguistic search engine which helps you to find the perfect word or sentence to express your ideas.

LanguageTool is an Open Source proofreading software for English, French, German, Polish, Russian, and more than 20 other languages.

Hemingway Editor is a proofreading tool for writers.