Answers to the questions we hear most
Can't find what you need here? The team is a message away.
Getting started
What file types can I upload?
TXT Audit accepts .docx, .pdf, and .txt files, or you can paste text directly into the upload box. Scanned image‑only PDFs aren't supported yet since there's no text layer to check.
How long does a check take?
Most documents finish in under a minute. Longer files, generally 30 pages or more, can take a few minutes since all three checks — plagiarism, AI detection, and similarity scoring — run over the full text.
Is there a minimum or maximum document length?
There's no strict minimum. The maximum on both plans is 40,000 words per document; anything longer should be split into parts.
Plans & billing
How many documents can I check for free?
The Free plan includes 3 document checks every month, with the same plagiarism, AI detection, and similarity scoring you get on Premium.
What does Premium include?
Premium is $49 a month for 49 document checks, plus priority placement in the scan queue during busy periods.
What happens if I use up my monthly checks?
You can upgrade to Premium at any point in your billing cycle, or wait until your quota resets at the start of your next monthly cycle.
Can I cancel anytime?
Yes. Cancelling stops future billing immediately; you'll keep Premium access through the end of the period you already paid for.
Detection & accuracy
How is the similarity score calculated?
It combines fingerprint matches against our web and academic index with a semantic similarity pass that also catches paraphrasing, into a single 0–100 originality score.
How accurate is the AI detector?
The AI‑likelihood meter is a confidence estimate based on writing patterns, not a certainty. Treat a high score as a prompt to review a passage rather than definitive proof either way.
Can I dispute a flagged match?
Every flag links to its source and match percentage so you can judge it yourself. If something looks wrong, send it to support and we'll take a look.
Privacy & security
Is my document stored or shared?
Documents are stored only long enough to generate your report and are never shared with, or added to, any third‑party plagiarism database.
Can I delete a document after checking it?
Yes, you can delete any uploaded document and its report from your dashboard at any time.
Still have a question?
Send it to us and we'll usually reply within one business day.