Harper is described as 'English grammar checker designed to be just right. I created it after years of dealing with the shortcomings of the competition' and is a Grammar Checker in the development category. There are more than 50 alternatives to Harper for a variety of platforms, including Web-based, Mac, Windows, Google Chrome and Microsoft Edge apps. The best Harper alternative is LanguageTool, which is both free and Open Source. Other great apps like Harper are Grammarly, DeepL Write, Grammit and Refine.
Private Mac writing assistant that reads screen context to draft replies, complete sentences, correct grammar, and rephrase text in your tone. Suggestions work across apps and websites, support 36 languages, and can be accepted with Tab.
United States
AI-powered desktop writing assistant for grammar correction, rewriting, and translation with global keyboard shortcuts.
United States
Stylo fixes your writing in seconds — paste your text, pick a style. No more awkward phrasing, no more grammar mistakes, just clean polished text every time.
WordWand is a system-wide AI assistant for macOS that works in any app through a single keyboard shortcut. No copy-pasting, no tab switching — just select text, press a hotkey, and transform it instantly.
Italy
EU
AI-powered grammar correction tool using fine-tuned language models to fix grammatical errors in text.
Türkiye
AI text correction & translation via keyboard shortcuts. Highlight text, hit shortcut & fix or translate instantly. 100% private: activates only on demand & sends data directly to your API provider.
Canada
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.
SpainEU
Finds misspelled words on any web page. Works 100% offline. No account, no ads, no tracking, no data leaves your browser.
China
A background assistant that removes the stress of spelling and grammar. Built for accessibility, designed to stay out of your way.
DenmarkEU
Grammar Checker is an advanced proofreading tool that identifies grammar and spelling errors, delivers clear explanations, and offers practical suggestions.
China
ReverseGPT is an AI writing suite built around one job: taking an AI draft and making it read like human writing, without losing the meaning.
Plagiarism Checker is a tool that quickly detects plagiarism, verifies content originality, and checks for AI-generated text, supporting multiple languages and large documents.
Hong Kong SAR China
