1CheckerYes, it's FREE.
1Checker is your superb booster for writing and ideal solution for proofreading. With spelling check, grammar check, style review, vocabulary enrichment, dictionary, translation, and more this-is-exactly-what-I-want benefits all packed in one.

Instant Proofreading

Fueled by our patented cutting-edge AI (artificial intelligence) technologies and power engine, 1Checker can instantly detect and correct your spelling, grammar and style errors.

Professional Explanation

Detailed, professional, and easy to understand explanations are provided with each error detected. 1Checker helps you learn from your mistakes, avoid making them again, and write better English day by day.

Progressive Advancement

All your history revisions and writing statistics are intact and on record in your User Center. By getting you insightful diagnosis of where you can work on to improve your writing, 1Checker helps you refine and shine.

Smart Enrichment

Powered by CL (contextual learning) methology, 1Checker actually has a "brain" of its own and provides you with suggestions of better choice of wording to polish your article.
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