An AI Detector and Rewriter in One Place
Stop pasting between a checker and a rewriter that disagree with each other. Scan, rewrite, and rescan in one workflow — every version scored by the same detector, so the numbers are comparable.
Try It Free →5 free rewrites · free account, no card · results in seconds
The usual routine is four copies and two tabs: paste into a checker, read a score, paste into a rewriter, paste the result back into the checker. It is slow, and worse, it is unreliable — two different detectors disagree constantly, so the score you rewrote against is often not the score you end up being judged on. Comparing a number from one engine with a number from another tells you very little.
This tool is an AI detector and rewriter in the same workflow. Every rewrite returns three versions, each carrying a live AI-probability score from the same professional-grade detection engine, with the lowest-scoring version highlighted. The before and after come from one measurement source, so the change in the number actually means something. A semantic comparison runs alongside it, scoring how far the meaning moved and flagging drift.
There is also a free standalone AI checker at /ai-detector for when you only want to scan something: up to 300 words per check and 5 checks a day without an account, because each scan calls a paid detection engine behind the scenes. Inside the app the same detector runs on every version automatically, plus a manual re-check on demand, so the scan step stops being a separate errand.
Why one tool beats a checker plus a rewriter
- One measurement source. Input and output are scored by the same engine, so the drop is a real comparison rather than two unrelated numbers.
- No copy-paste loop. Scan, rewrite and rescan happen in one place — no tab-switching, no re-pasting, no losing track of which version you were on.
- Scored per version. All three rewrites come back with their own score and the lowest is highlighted, so choosing is a decision rather than a guess.
- Sentence-level detail. The detector highlights which sentences look machine-written, and single sentences can be rewritten in place without redoing the whole passage.
- Meaning measured too. A semantic comparison scores how closely each rewrite tracks your original and flags drift — a lower AI score is worthless if the argument moved.
- Free checker included. The standalone AI detector is free without an account: 300 words per check, 5 checks a day.
The longer argument is in why the best tools do both. If you mainly want the rewriting side, the human rewriter page covers how the restructuring works; if you only need a score right now, the free AI detector takes a paste and nothing else.
One tool vs a separate checker and rewriter
| Feature | AI Rewriter | Separate tools |
|---|---|---|
| Scoring engine | Same detector before and after | Two engines that routinely disagree |
| Steps per revision | One — rewrite and scores arrive together | Four: check, copy, rewrite, re-check |
| Versions scored | 3 per run, lowest highlighted | Whatever you paste back, one at a time |
| Sentence-level flags | Yes, and rewritable in place | Usually read-only, if offered |
| Meaning drift | Scored on every rewrite | Not measured by either tool |
| Word-count resets | One 1,000-word budget per run | Two separate caps to manage |
Describes the general two-tool workflow, not any specific named checker or rewriter.
Frequently asked questions
Is there an AI detector and rewriter that is free?
The AI detector here is free with no account: up to 300 words per check, 5 checks a day. The rewriter gives you five full rewrites free with a free account and no card, each up to 1,000 words, and every one of those runs includes the detector scores and the meaning check. After that it is a one-time plan for a day, a week or a month — nothing renews.
Why do two AI detectors give me different scores?
Because they are different classifiers trained on different data, each returning its own confidence estimate rather than a measurement of a fixed quantity. That is exactly why checking and rewriting against one consistent engine is more useful than mixing sources: the absolute number matters less than whether it moved on the same scale.
Does the rewriter automatically check the output?
Yes. Every version that comes back is scored automatically, and you can re-check any text manually at any point. You never have to paste the result into a separate checker to find out where you stand.
Will a low score here mean a low score in my university's system?
Not necessarily, and no tool can promise that. Institutions run their own detectors, versions change without notice, and a score is probabilistic rather than proof either way. What you get here is a consistent, live measurement to work against, plus the sentence-level detail showing which parts still read as machine-written.
Can I check text I did not write here?
Yes — the free detector takes any pasted text, which is the usual way people check a draft they have been sent or their own writing that was wrongly flagged. The same 300-word and 5-a-day limits apply, since each scan calls a paid detection engine.
What does the meaning check add to the AI score?
It stops you from optimising the wrong number. Aggressive rewriting can lower an AI score by quietly dropping or distorting content, so each version is also scored for semantic similarity against your original, with drift flagged. Facts, figures and citations are still worth checking yourself before you submit.
Check, rewrite and recheck without leaving the page
Five full rewrites free — free account, no card, scores included.
Try the Detector + Rewriter