Paste your essay and get a detailed grammar score in seconds. Catches the specific errors professors actually mark down — not just typos.
12 issues detected across 3 categories. Full breakdown ready below.
Your essay opens with a comma splice in sentence 1: "The study was conducted over three months, the results were surprising." This should be split into two sentences or joined with a coordinating conjunction. Sentence 2 contains a tense shift — switching from past to present mid-paragraph without cause.
Sentence 3 — Subject-verb agreement error: "The researchers argues" should be "The researchers argue." Sentence 4 — Dangling modifier: "After reviewing the data, conclusions were drawn" — who reviewed the data? Sentence 5 — Passive overuse flag: 3 passive constructions in this paragraph reduce academic clarity. Sentence 6 — Missing article: "University conducted study" should be "The university conducted a study." Sentence 7 — Incorrect semicolon usage. Sentence 8 — Wordiness: "Due to the fact that" → replace with "Because." Sentences 9–12 — Style: vary sentence length, avoid repeating "however" consecutively, and strengthen your topic sentence.
Academic tone score: 68/100. Passive voice frequency: above the recommended threshold for academic essays (>25%). Convert at least 4 passive constructions to active voice for cleaner argumentation.
Three steps from paste to polished. No account needed to get started.
Copy any section of your essay — a single paragraph or the full document up to 5,000 words. Works with academic essays, research papers, and discussion posts.
The essay grammar checker scans every sentence for 200+ error types: comma splices, subject-verb disagreement, tense shifts, passive overuse, dangling modifiers, and more. Results in 3–5 seconds.
Get a grammar score plus a sentence-by-sentence breakdown with specific correction suggestions. Each error includes an explanation — not just a flag.
Most grammar tools are built for emails and blogs. This one is built for the writing professors actually evaluate.
Flags overly casual phrases, inappropriate first-person use, and phrasing that weakens argument strength in formal academic writing.
Every issue is pinpointed to the exact sentence with a clear explanation of what's wrong and a specific correction suggestion — not a vague squiggle.
A 0–100 grammar score with issues sorted into Critical, Warning, and Style categories so you know what to fix before the deadline.
Detects article errors, preposition misuse, and awkward phrasing patterns common in non-native English writing without penalizing valid stylistic choices.
See why students use this essay grammar checker instead of general-purpose alternatives.
| Feature | Essay Grammar Checker | Grammarly | QuillBot | ProWritingAid |
|---|---|---|---|---|
| Academic essay focus | ✔ Yes | ✘ General | ✘ General | ⚑ Partial |
| Sentence-level explanations | ✔ Yes | ✔ Yes | ✘ No | ✔ Yes |
| Academic tone scoring | ✔ Dedicated score | ⚑ Limited | ✘ No | ⚑ Basic |
| ESL-specific detection | ✔ Yes | ⚑ Partial | ✘ No | ⚑ Partial |
| Free tier | ✔ Yes | ⚑ Very limited | ✔ Yes | ⚑ Trial only |
| No account required | ✔ Yes | ✘ Required | ✔ Yes | ✘ Required |
Real feedback from people who used the essay grammar checker before submitting.
"I kept getting marked down for comma splices and had no idea where they were. This found seven in one essay. My next paper came back a full grade higher."
"English is my second language and Grammarly kept missing the article errors I make. This caught them with a clear explanation. I use it before every submission now."
"The academic tone score is something I haven't seen on other tools. It flagged that I was writing too casually for a research paper — I genuinely hadn't noticed."
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An essay grammar checker is a tool that analyzes the text of an academic essay and identifies grammatical errors, punctuation problems, and style issues that weaken writing quality. Unlike a basic spell-checker built into a word processor, a dedicated essay grammar checker understands the specific conventions of academic writing — the kind of errors that actually affect your grade.
Most students who lose points on grammar don't have a spelling problem. They have a pattern problem: recurring comma splices, tense inconsistencies across paragraphs, or passive voice overuse that makes argumentation seem vague. A word processor won't catch these. A general tool like Grammarly will catch some, but it's built for business email and blog content — not 2,000-word argumentative essays structured around a thesis statement.
The essay grammar checker on this page is trained specifically on academic writing patterns. It knows the difference between a comma splice in a casual blog post (sometimes acceptable) and a comma splice in an academic essay (never acceptable). It understands passive voice overuse in the context of a five-paragraph essay rather than a one-sentence email. That context matters for getting results that are actually useful before a submission deadline.
Understanding the most common errors helps you know what to look for before running a check. These are the errors that show up most frequently in undergraduate and graduate-level writing:
A comma splice occurs when two independent clauses are joined only by a comma with no coordinating conjunction. Example: "The study examined three variables, the results were inconclusive." This is one of the most penalized errors in academic writing. It should be split into two sentences or joined with "but," "and," or a semicolon.
When a subject and its verb don't match in number, you have an agreement error. This is especially common with collective nouns and long noun phrases that obscure the actual subject. Example: "The group of researchers argue…" — "group" is singular, so it should be "argues."
Academic essays should maintain a consistent tense throughout — typically present tense when discussing a text and past tense when describing a completed study. Shifting between tenses without reason is a pattern error that an essay grammar checker catches well because it requires analyzing multiple sentences together.
A dangling modifier is a phrase that doesn't clearly attach to the word it's supposed to modify. Example: "After analyzing the results, the conclusion was drawn that…" — the sentence implies the conclusion analyzed the results, not the researcher. These are common and easy to miss without a targeted grammar check.
| Error Type | Example (Wrong) | Correction Direction | Common In |
|---|---|---|---|
| Comma Splice | "Results varied, they were notable." | Split into two sentences | All essay types |
| Subject-verb disagreement | "The data shows conflicting…" | Check subject number carefully | Research papers |
| Tense shift | "The author argues… he argued…" | Maintain one tense throughout | Literary analysis |
| Dangling modifier | "After reviewing, the report was written." | Name who performed the action | Research, STEM |
| Passive overuse | "The experiment was conducted by…" | Convert to active voice | Lab reports, essays |
Running a grammar check is not a substitute for proofreading — it's a complement. Here's how to get the most accurate results:
The tool is built for anyone writing at an academic level, but three groups use it most consistently.
College essays need to meet specific grammar and tone standards that general writing tools don't address. Students writing argumentative essays, research papers, or online discussion posts use this tool to catch the specific errors that appear in professor rubric comments.
Writing formal academic essays in a second language introduces specific challenges: article usage (a/an/the), preposition selection, and sentence constructions that seem grammatically logical in a native language but are incorrect in English academic writing. The ESL-aware detection in this checker is built around these exact patterns.
Graduate writing carries higher stakes. A grammar error in a thesis introduction or conference paper abstract undermines credibility quickly. Graduate students use this tool as a final check before submitting drafts to advisors or uploading to journal submission systems.
Beyond running an essay grammar check, building better grammar habits reduces how much correction your writing needs over time. A few practices that consistently help:
The questions below address the most common things writers ask before using an essay grammar checker for academic work.
Real examples of the errors caught — and what the corrected text looks like.
Based on the most commonly flagged issues in academic essays — detected automatically by the grammar checker.
Different writers make different grammar mistakes. The checker is calibrated for each context.
Catch the comma splices, tense shifts, and passive voice patterns that show up in professor rubric comments. Run a check before every submission — takes 10 seconds.
Get ESL-aware detection that catches article errors, preposition misuse, and structural interference from native language patterns — with a clear explanation for each issue.
Final grammar pass before submitting to advisors, journals, or conference systems. Catches the subtle errors that get flagged in peer review — passive overuse, wordiness, modifier placement.