Free Tool
Academic Grammar Checker
Paste your text to check for passive voice, wordiness, sentence length, and readability.
How Our Grammar Checker Works
Our free academic grammar checker analyzes your text for common writing issues that professors notice:
- Passive Voice — Academic writing prefers active voice. We highlight passive constructions.
- Wordiness — Phrases like "due to the fact that" → "because"
- Long Sentences — Sentences over 25 words can confuse readers
- Readability — Flesch-Kincaid reading ease score
- Statistics — Word count, sentence count, average sentence length
Common Academic Writing Mistakes We Detect
Passive Voice
The experiment was conducted by the researchers.
The researchers conducted the experiment.
Wordy Phrases
Due to the fact that students are stressed...
Because students are stressed...
Weak Intensifiers
The results were very significant.
The results were significant.
Why Academic Writing Needs Grammar Checking
Even strong writers benefit from an automated check. Common issues that slip through:
- Inconsistent verb tense within paragraphs
- Passive voice overuse (should be <10% of sentences)
- Filler words that weaken arguments
- Sentences that are too long for readers to follow
Need More Than Grammar Checked?
Our Draft Feedback tool goes beyond grammar — argument flow, logical structure, and thesis clarity, on the draft you've already written.
Try Draft Feedback →