Tools
The best essay checker for students in 2026
An essay checker is only as useful as the rubric criteria it covers. Grammar-only tools miss thesis quality, structure, and citations. Below are the 5 tools US students actually use — what each catches, what each misses, and which combination is worth paying for.
What a good essay checker actually checks
Grammar, spelling, punctuation (baseline). Passive voice and readability grade. Thesis presence and clarity. Paragraph structure (topic sentence, evidence, analysis). Citation format for APA 7 and MLA 9. Plagiarism and originality. AI-generated text detection. Any tool covering only the first two is grammar software, not an essay checker.
Grammarly (free + premium)
Best-in-class grammar and tone. Free tier catches basic errors; Premium ($12/mo student rate) catches passive voice, wordiness, and formality. Does NOT check thesis, structure, or citations. Best used alongside a structural checker.
ProWritingAid ($10/mo)
Deeper style reports than Grammarly — pacing, sentence-length variety, sticky sentences, cliché flags. Weak on citations. Best for creative and long-form academic writing (theses, dissertations).
Turnitin (via your school)
The originality checker most US professors use for grading. Similarity score under 15% is the target. Also has an AI-writing score since 2023. Free through your college — do not pay for third-party 'Turnitin access' resellers.
Quillbot (free + premium)
Paraphrasing plus basic grammar. Useful for rewriting a weak paragraph, dangerous if used to bypass plagiarism detection (Turnitin flags most Quillbot output). Use for tone tweaks, not source laundering.
TutorsGallery USA free essay checker
Our /tools/essay-checker runs a rubric-style pass: thesis presence, paragraph structure, evidence density, citation format, plus grammar. Free, no signup. Best used as a first pass before Grammarly.
Which combination to use
Free stack: our essay checker + Grammarly free + Turnitin via school. Paid stack: Grammarly Premium ($12/mo) + Turnitin via school. Add ProWritingAid only if you're writing 5,000+ words a week (thesis, dissertation).
Frequently asked questions
Is there a free essay checker that catches everything?
No — every free tool has a gap. Use our essay checker for structure, Grammarly free for grammar, and Turnitin (through your school) for originality. That combination costs $0 and covers most rubric criteria.
Will an essay checker catch AI writing?
Turnitin's AI score does. Grammarly and ProWritingAid do not. If your professor uses Turnitin, assume anything from ChatGPT will be flagged.
Does an essay checker improve my grade?
It removes grammar and clarity penalties (usually worth 5-15 points). It does not improve a weak thesis or shallow research — those need editing, not checking.
Need a human editor?
Our /services/essay-editing-help ships a marked-up edit within 24-72 hours. Order at https://tutorsgallery.org/orders/stud/new, choose "Editing," attach your draft.