ProofKey is described as 'Open-source grammar checker and writing assistant for Chrome that uses Chrome's built-in model or your own AI provider, with no backend or telemetry' and is a Grammar Checker in the web browsers category. There are four alternatives to ProofKey for a variety of platforms, including Mac, Windows, Microsoft Edge, Web-based and Google Chrome apps. The best ProofKey alternative is LanguageTool, which is both free and Open Source. Other great apps like ProofKey are Grammarly, Harper and ProWritingAid.
A complete grammar checker, style editor, and mentor, offering 25 writing reports. It identifies repetitive language, vague words, overuse of adverbs, passive voice, and complex structures while providing a word explorer and thesaurus.
United Kingdom
Proofreading software compatible with LibreOffice, Word, Firefox, and Chrome. Supports 20+ languages, offering two tiers: free and premium, with features like customizable checks, Microsoft add-on, and error detection in gender, ISBN, and IBAN. Offers open-source web and desktop versions.
United States
Delivers real-time spelling, grammar, and style check, generative AI for instant drafts, comprehensive writing feedback, and enhanced sentence clarity and word choice for effective communication on multiple platforms, including desktops and web browsers.
United States
Harper is an English grammar checker designed to be just right. I created it after years of dealing with the shortcomings of the competition.
United States
