checkai.

From your draft to your next step.

Know what happens before you click. Your original stays available while you review the result.

  1. 1

    Bring your text

    Paste a draft or import a text file. Word and PDF imports are available after sign-in. Your draft carries through account setup on this device for up to 24 hours.

  2. 2

    Choose a tool and check access

    One free humanization of up to 100 words after sign-up and email verification. Full result to read and copy. No card or automatic subscription. Subject to eligibility and monthly availability. Detection, paraphrasing and summarizing are included from Starter; plagiarism starts with Pro. The editor shows the applicable limits and word cost before you confirm.

  3. 3

    Run, then review

    Processing starts only after your explicit request. Read the AI estimate and any returned passage highlights in context. For a humanized draft, compare the changes and accept only what you want to keep. Check names, numbers and references.

  4. 4

    Keep the version you choose

    Save documents and versions in your account. Reopen completed results or resume an existing request without submitting it again. Export your work when it is ready.

What to check in every result

Read the signal in context

An AI estimate can be wrong. Review any returned highlights alongside the sources and drafting process.

Understand detection limits

Compare before you accept

Review wording, names, numbers and references against your original. A rewrite is a suggestion, not a fact check.

Review a revision

Know where your text goes

AI requests send the submitted text for processing. Review the storage and deletion details before sharing sensitive material.

Privacy and data

Start with a short passage.

One free humanization of up to 100 words after sign-up and email verification. Full result to read and copy. No card or automatic subscription. Subject to eligibility and monthly availability.

Open the humanizer