Paste your personal statement into the checker above and you get a 0-100 AI score with one of three verdicts: reads as AI-generated, borderline, or reads as human-written. It is free, ten credits a day, one credit per check whatever the length, and there is no account, no login, no card and no email address. The floor is 65 words, which any full statement clears many times over. Read the score as a symptom rather than a judgement on you. Personal statements score high more often than almost any other student writing, including statements written entirely by hand, because the form rewards what a detector measures: formal register, even sentence length, careful hedging, and summary in place of detail.
Detectors measure style, not authorship. They score how predictable the next word is and how uniform the sentences are. A personal statement is written to a taught shape by everyone applying, all working from similar advice, so the drafts converge whether or not a model was ever opened.
The character limit does a specific kind of damage nobody warns applicants about. UCAS caps the whole statement at 4,000 characters and graduate programmes usually cap you at one or two pages. When a draft runs long, the first thing most people cut is the concrete part: the module name, the number, the line somebody actually said. What survives is the summary sentence, which makes the same claim from higher up. Cutting to length that way turns concrete prose into abstract prose, and abstract prose is what scores high.
This falls hardest on people writing in a second language. Liang et al. at Stanford HAI found in 2023 that 61% of TOEFL essays by non-native English speakers were falsely flagged as AI across seven detectors. Every one of those essays had a human author.
The reader is working through a large pile in a short window and is not trying to catch you. What they register first is the absence of checkable facts. Over-polished statements talk about qualities: curiosity, resilience, a genuine passion for the field. A statement written by the applicant talks about events. "Strong analytical skills" and "I spent six weeks rebuilding a dataset because the first version double-counted every repeat visitor" make the same claim, and only one could have come from you. Graduate readers apply the same test harder, because a fit paragraph naming no paper and no method reads as filler to faculty who know the field.
The registry of named AI writing tells explains each pattern, and the free AI vocabulary check marks the stock phrasing in your own draft with a replacement you can apply. It costs no credits, has no daily limit, and runs in your browser tab. These six dominate personal statements.
UCAS runs submitted statements through similarity software. That is a copying check: it compares your text against previously submitted statements and published sources, and answers a different question from the one an AI score answers. A statement can be original by that measure and still read as generic. Read the current UCAS guidance for your cycle. Phrasing lifted from an example statement or a friend's draft is the more provable problem and needs removing outright. The plagiarism and originality check here is free and unlimited, and runs in your browser.
If a statement is questioned, the weakest answer is a general denial and a finished file. The strongest is a record of the work. Write in the editor or on the proof of human writing page and the site records timestamps, text added and removed at each step, time worked, your revision ratio, and a flag when one insertion is large enough to be a paste. It records the shape of the session, not the text, so the content never leaves your browser.
The export is signed with an ECDSA P-256 key generated in your tab and commits to your exact document with a SHA-256 hash, so it proves the record belongs to that draft without carrying what you wrote. Whoever is asking drops the file on the verify page, gets a yes or no on the signature, and can confirm the text matches the hash, in their own browser. Start it early, because the challenge arrives after submission and sometimes at interview.
Run the check on the whole statement first. It costs one credit no matter how long the text is, so scoring 4,000 characters and scoring one paragraph cost the same. Then work in the free tools before you spend anything else. A score tells you a problem exists; the marks tell you where it lives, and most of it is fixed by hand in minutes, by replacing a claim about yourself with the event that proves it.
The humanizer rewrites every sentence in one click, takes 12,000 characters per run, and costs one credit per 50 words with a 25-word minimum. Read each rewritten sentence against your own facts, and check grades, module names and institutions by eye before you submit, since a rewrite works only from the text you give it.
UCAS runs submitted statements through similarity software, which is a copying check rather than an AI check. What each university does beyond that is its own decision, and you will usually never be told. Read the current UCAS guidance for your cycle.
One credit to check, whatever the length. Rewriting is one credit per 50 words, so roughly 650 words is 13 credits in one run, above the daily 10. Work a paragraph at a time. A 200-word answer is 4 credits.
We report our own checker's score and label, and make no claim about how any other company's tool will score your text. What it does show you is which phrases in your draft match the named patterns in the tells registry.
Rewriting a draft you were permitted to generate is ordinary editing. Where the application states that AI is not permitted, that rule covers the draft however it is edited afterwards, and some applications ask you to declare AI use. Read the policy in front of you.
Produce specifics rather than a denial. Gather every trace of the drafting you have, including any file's version history. If you wrote here, the signed record gives timestamps, your revision ratio and any paste events, and the person asking can verify it in their own browser.
The checker needs 65 words and the humanizer needs 25, so paste a very short answer into the AI vocabulary check instead. It runs in your browser, costs no credits, and marks the ceremonial opener eating a sixth of your allowance.