01
Upload your work
Drop in an essay, lab report, or problem set. Pick the subject and add any rubric or context your teacher gave you.
How it works
Three steps. One better draft.
No setup, no waiting on a teacher. Upload, read your feedback, and fix the things that move your grade.
02
Get a grade & feedback
In under a minute you get an estimated grade plus detailed, actionable feedback mapped onto your document.
03
Fix it first
Work through the colour-coded notes, fix the things that move your grade, and submit a draft you feel good about.
The feedback is the point
Not just a number — a map of what to fix.
Every pre-grade comes back colour-coded and annotated, so you can see your strengths and your gaps at a glance and act on them right away.
- An estimated grade — treated as a starting point, never a promise.
- Line-level annotations highlighted right on your text, not in a separate report.
- A prioritised fix list so you know what to tackle first.
- Works across subjects — essays, lab reports, problem sets and more.
How your feedback is colour-coded
The same legend across every subject.
Well done — keep doing this
Could be stronger — worth another pass
Needs work — fix before you submit
Comment pin — a specific note in context
Grounded, not guessed
Every note points at the sentence it’s about.
No floating advice, and no single number pretending to be certain. You get a range, and each comment is pinned to the exact words that earned it.
Your paragraphAS SUBMITTED
Fitzgerald uses the green light at the end of Daisy’s dock to represent Gatsby’s unreachable dream1, a symbol that returns at every turning point in the novel. The narrator’s tone shifts here without clear evidence2, moving from sympathy to judgement inside a single paragraph.
Nick calls Gatsby great and then describes a man who paid too high a price for one dream. The reader is asked to accept both readings at once3, but the essay never does the work of reconciling them.
B+86–89%
Always a range. A teacher marking this on a Tuesday and on a Thursday would not land on the same number, and neither will we. The range is what we can honestly stand behind — the feedback below is the part worth acting on.
…represent Gatsby's unreachable dream
A clear, arguable thesis that goes beyond summary. Keep this.
…shifts here without clear evidence
Two of your four claims are asserted without a supporting quotation. This is the one to fix first.
…accept both readings at once
Resolving this contradiction is the single highest-value change in the essay.
Actual output
This is what comes back.
Real feedback from real pre-grades, on real student work. Not reviews — the product itself.
Thesis & argument23/25
A clear, arguable thesis that goes beyond summary. The one thing holding it back is that the essay discovers a better argument in paragraph 2 and never promotes it.
Evidence & support19/25
Where you quote the text you analyse it well. The gap is consistency — two of your four claims are asserted without a supporting quotation.
Organisation20/25
Paragraphs are ordered sensibly, but the final one reverses the introduction without acknowledging it. Resolving that contradiction is the single highest-value fix.
Mechanics & style24/25
Clean, controlled prose with varied sentence length and no recurring grammar issues. A few transitions lean on “however” where the logic already carries the weight.
Method — lab report17/20
Your procedure is reproducible, but the control is described only by implication. Name it explicitly so a reader knows what you compared against.
Working shown — problem set22/25
Q5 and Q8 reach the right answer through a sign error that cancels itself out. Worth fixing before a marker who reads the working finds it.
Examples from graded work, shared with permission and with names removed. We show you what the feedback looks like rather than telling you how many people liked it.
Pricing
Start free. Upgrade when it counts.
No card to start. Cancel anytime. Your first three pre-grades are free.
Free
The whole pre-grader, three times a month.
$0/forever
3 pre-grades per month
Upload your rubric — points detected automatically
Per-criterion feedback & percentage
PDF, Word, image & text uploads
Saved grade history
Recommended
Student Pro
For the student who submits a lot.
$4.99/mo
Everything in Free, without the monthly cap
Full annotated markup & comment pins
Highlights linked to every comment
Unlimited pre-grades
Grade history & re-checks
FAQ
Questions, answered.
No — and that is important. PreGrader gives an estimated grade as a starting point to help you improve. Your real grade depends on your teacher and their rubric. Think of it as a study aid, not a promise.
Essays, lab reports, problem sets, history papers and more. Pick the subject, upload your file, and add any rubric or instructions your teacher provided so the feedback fits your assignment.
Most pre-grades come back in under a minute, complete with an estimated grade, annotated markup, and a prioritised list of what to fix first.
No. PreGrader gives you feedback on work you already wrote — like a tutor or peer reviewer — so you can revise it yourself. It does not write your assignment for you, and we encourage following your school's academic integrity policy.
Your documents are yours. We use them only to generate your feedback and grade history, and never share them. You can delete a pre-grade from your history at any time.
Yes. Free stays free forever, and paid plans can be cancelled at any time — you keep access through the end of your billing period.