A background assistant that removes the stress of spelling and grammar. Built for accessibility, designed to stay out of your way.



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 Mozilla Firefox 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 Grammalecte.
A background assistant that removes the stress of spelling and grammar. Built for accessibility, designed to stay out of your way.



Grammar Checker is an advanced proofreading tool that identifies grammar and spelling errors, delivers clear explanations, and offers practical suggestions.

Plagiarism Checker is a tool that quickly detects plagiarism, verifies content originality, and checks for AI-generated text, supporting multiple languages and large documents.

Pluma is a browser extension that allows you to spellcheck and edit text as you browse.

