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Supplemental Essay Grader

Paste a supplemental essay, enter the college's word limit, and see how specific, personal and on-prompt it is, with the sentences behind each score.

Grade your essay

Beta: accuracy still being measuredFirst essay free
Sample essay. Paste yours.
69 wordsPlain text is fine
Drives the word count and the limit check

We never train AI on your essay or rewrite it. We don't save grades made without an account. Our AI provider keeps a copy for up to 30 days. Account essays auto-delete after 30 days, or delete them now. For ages 13+.

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Your result

Paste your supplement and press Grade. Your result appears here: a score for each of the 5 rows, the sentences behind it and one fix per row.

  • Answers the Promptnot scored yet, out of/5
  • Specific to This Collegenot scored yet, out of/5
  • Connection to Younot scored yet, out of/5
  • Engagement and Contributionnot scored yet, out of/5
  • Voice and Concisionnot scored yet, out of/5
How it works

How scoring works

The grader scores a supplement on five rows, from Answers the Prompt to Voice and Concision, each out of 5, and quotes the sentences behind every score. You enter the college's word limit, and our code checks your draft against it exactly as it checks the Common App's 650. The full pipeline, its tests and its limits are on our scoring method page.

Before you paste

What to paste, and how your limit is checked

Supplements are short, so every sentence is judged. Give the grader the question and the limit.

What to paste

Paste one supplement at a time, and paste the college's question into the prompt field: the first row is judged against it. Then type the word limit from the prompt; the presets cover 100, 150, 250, 350 and 650 words.

The grader needs at least 50 words to judge an answer, so one-line “short takes” can't be graded on their own.

Checks our code runs

Over your limit, the count reads “280 / 250 words: 30 over your limit”, and cutting goes first in Fix this first. The essay is still graded.

  • Doesn't answer the question asked: Answers the Prompt is capped at 2 of 5.
  • Most of it would fit any college: Specific to This College is capped at 2.
  • Details never tied back to you: Connection to You is capped at 2.

Personal statement or supplement?

Use this grader for anything a single college asks for on top of the main essay. For the main essay, use the college essay grader, which checks the Common App's 650-word limit and its seven prompts.

For the University of California, the UC PIQ grader knows each of the eight questions and the 350-word cap.

Prompt types

Which supplements it grades

The same five rows fit every common supplement. What changes is what counts as specific.

Prompt typeWhat “specific” means here
Why usCourses, programs, people or traditions found at this college, and why each matters to you.
Why this majorWhat you have already done in the subject, and the classes or research you want next.
CommunityOne community you belong to, your role in it and something you changed or learned.
Activity or interestA moment from the activity, not a summary of it, and why you keep doing it.
The rubric

The supplemental essay rubric, row by row

GradeLamp supplemental essay rubric, version 1.1.0, updated 6 Nov 2026. Written in our own words. Sources: Application Essays (UNC Writing Center).
RowPointsWhat earns it
Answers the Prompt0–5Answers the exact question asked, directly and fully, rather than recycling a different essay.
Specific to This College0–5Details that only fit this college, such as particular courses, programs, research or traditions, or for other prompts, concrete details of your experience.
Connection to You0–5Ties the details back to your own experiences, interests and goals, so the reader sees why this matters to you in particular.
Engagement and Contribution0–5Shows how you would take part and what you would add: what you would do, join, start, study or bring to the community.
Voice and Concision0–5A natural voice and efficient writing that uses a short limit well: no throat-clearing, filler or repetition, and clean mechanics.
Total25Our code adds the row scores; the AI never does the arithmetic.

Each row runs from 0 to 5. Bands: 0-9 Early draft, 10-15 Developing, 16-20 Strong, 21-25 Ready to submit.

See your feedback

A sample, graded row by row

A "why us" answer to a 250-word prompt for a fictional college, written by our team. It answers the question well; one generic sentence costs it on two rows.

Supplement prompt (250 words): Why are you interested in Larkspur College?

Every Saturday since tenth grade, I have pulled on waders and tested Mill Creek behind our middle school for nitrates. My data lives in a shared spreadsheet that the county reads about twice a year. At Larkspur, I want to do the same work where people use it.A

Answers the Prompt5/5

Level: Answers every part of the prompt directly, from the first sentences.

NoteAnswers the question in the first paragraph and stays on it to the end.

Larkspur's Watershed Lab is the reason I first looked at the college. Students there run the sampling program for the Alder River,B and the city uses their results to decide where to replant the banks. I want to join that sampling team in my first year and learn how to turn readings into recommendations that someone acts on.

Specific to This College4/5

Level: Mostly specific details, with a little generic praise.

FixNext pointSwap the sentence about the campus and reputation for one more detail that only this college offers.

I am also drawn to the first-year seminar on rivers and cities, because it is taught jointly by a biologist and a historian.B My creek is polluted partly because of a parking lot built in the 1970s,C and I have never studied why those decisions were made.

Connection to You4/5

Level: Clear personal links for most details.

FixNext pointSay what you would do with what the seminar teaches you, so the course connects to a goal and not only to your curiosity.

Larkspur has a beautiful campus and a strong reputation, and I think I would fit in well there.E

Voice and Concision3/5

Level: Generally clear, with filler, repetition or noticeable errors.

FixNext pointCut this sentence: any applicant could write it about any school, and it spends words your specifics need.

Outside class, I would bring my habit of keeping careful records. I would like to start a monthly creek cleanup with local high school students,D so the next group of tenth graders has someone to learn from.

Engagement and Contribution3/5

Level: Some sense of engagement, but vague.

FixNext pointConnect the cleanup to the lab's river sampling, so your contribution builds on something the college already does.

Fix this first: the generic sentence in the fourth paragraph. Cutting it lifts concision and frees about 20 words for a detail only this college has.

208 words of a 250-word limit · 5 paragraphs · Strong band

Get this on your essay

SampleWritten by the GradeLamp team for teaching. Not a real student's essay. The scores and comments were written by hand to show what a result looks like; they are not output from the grader. Larkspur College, its Watershed Lab and the Alder River are fictional, invented for this sample.

Revise

How to raise your supplemental essay score

Short essays reward precision. Most gains come from replacing general sentences, not adding new ones.

How do I make a why us essay more specific?

Do the research before you revise: the course catalog, department pages, student newspaper and club lists. Then find each sentence that could name any college and replace it with one that names something only this one has, plus why it matters to you. The Specific to This College row quotes the sentences behind its score, so you can see what it counted.

What should I cut when I'm over the word limit?

Start with an opening that restates the question, then sentences about rankings, size or location, then lists of three programs where one would do. Cut until you are under, and grade again: the Voice and Concision row usually rises when the filler goes.

Should a supplement be about the college or about me?

Both, joined. A detail about the college earns its place when the next sentence connects it to something you have done or want to do. If a paragraph is only about the college, Connection to You drops; if it is only about you, Specific to This College does.

Does a short answer need a conclusion?

Rarely. Under 150 words, end on your most specific sentence rather than a summary of what you just said. The words you save are better spent on a second concrete detail.

Questions

FAQ

What is a supplemental essay?

An extra essay or short answer that a particular college asks for on top of the main personal statement, such as "Why us?", "Why this major?" or a question about your community.

How long are supplemental essays?

Each college sets its own word limit, so enter the limit from your prompt and the grader checks your draft against it.

What makes a strong "why us" essay?

Specific details about the college, such as courses, programs or opportunities, connected to your own goals and experiences, rather than rankings, weather or location.

Can I reuse one "why us" essay for several colleges?

You can reuse ideas, but a strong answer names things only that college offers, so the grader marks down sentences that would fit any school.