GrammarProGrammar Checker for ESL Learners
Learning English? Fix grammar mistakes common among non-native speakers — articles, prepositions, tenses, and more. Free, instant, AI-powered.
Why ESL Learners Love GrammarPro
Catches ESL-Specific Mistakes
Our AI understands patterns common to non-native speakers — missing articles, wrong prepositions, tense mixing — errors that generic spell checkers miss.
Learn While You Write
See your corrected text side-by-side. Over time, you'll internalize correct patterns and make fewer mistakes naturally.
Perfect for IELTS & TOEFL Prep
Practice writing essays and get instant feedback on grammar. Use Formal Tone mode for academic-quality English.
6 Checking Modes
Grammar, Spelling, Punctuation, Clarity, Formal Tone, and Concise Writing — cover every aspect of English mastery.
Common ESL Mistakes We Fix
Article Errors
"I went to store"
"I went to the store"
Preposition Mistakes
"I'm good in math"
"I'm good at math"
Tense Confusion
"Yesterday I go to school"
"Yesterday I went to school"
Subject-Verb Agreement
"She don't like it"
"She doesn't like it"
Word Order
"I always am happy"
"I am always happy"
Plural/Singular
"I have many informations"
"I have a lot of information"
Frequently Asked Questions
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Last updated: March 2026