CoGrader
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Free AI Essay Grader

Grade my essay, honestly

Paste your essay below and get AI-powered feedback in seconds. See your score, what you did well, and exactly what to improve -- all aligned to real classroom rubrics.

Free, no sign-up
AP & state rubrics
Results in seconds
0 words0 chars
3 free grades remaining
7,000+ Teachers trust CoGrader
Free No sign-up required
< 5 sec To get your feedback
Rubric-aligned AP, state & custom rubrics
How it works

From essay to feedback in three steps.

  1. 1

    Paste your essay

    Copy your essay from Google Docs, Word, or anywhere else and paste it into the text box.

  2. 2

    Click "Grade My Essay"

    Our AI reads your essay and scores it against a real classroom rubric — AP English, state writing tests, or the kind your own teacher would use.

  3. 3

    Get your feedback

    See your XP score, rubric breakdown, and one specific thing you can improve right now.

Trusted by educators and built for compliance

Trusted by 7,000+ teachers and educators

Used at 1000+ schools
Backed by UC Berkeley
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Frequently Asked Questions

CoGrader: the AI Teaching Assistant.

Is this really free?

Yes. You get 3 free grades, and can unlock 3 more by sharing a bit about yourself. After that, there is a short cooldown before you can grade again.

How accurate is the feedback?

The AI uses real classroom rubrics — AP English Synthesis, state writing rubrics (STAAR, FAST, Regents), or generic argumentative and informative rubrics. It scores your thesis, evidence and commentary, and sophistication the way a teacher would.

Is my essay stored or shared?

No. Your essay is sent to our AI for grading and then discarded. We do not store, share, or use your essay for any other purpose.

Can my teacher use this too?

CoGrader is built for teachers. If your teacher wants to grade an entire class of essays in under 2 minutes, they can sign up for a free teacher account at cograder.com.

What rubric does the AI use?

This free grader defaults to the AP English Language and Composition Synthesis Essay rubric — three criteria (Thesis 0-1, Evidence and Commentary 0-4, Sophistication 0-1) for 6 points mapped to an XP score out of 100. The full CoGrader platform also supports STAAR, FAST, Regents, CAASPP, and custom teacher rubrics.

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