Pattern-Level Signal Scanning
The Detector measures pattern-level scoring across your document based on common linguistic signals used in AI-likeness analysis—exposed in plain language so you know exactly what to fix.
AI Detector
Check for AI-Like Writing Patterns
See what reads templated—and how to fix it.
Detection purpose
What are you checking for?
Select a purpose to tailor the detection context.
Language
Detection results
Add text to begin analysis
Pattern breakdown
AI-like patterns--%
Human-like patterns--%
What the detector reveals
Sentence-level AI probability scores, colour-coded for instant clarity.
Sentence-Level Highlights
Every sentence is highlighted so you can see exactly which lines appear most templated. Click any sentence to see the signal score and get a targeted revision suggestion.
Exportable Reports
Download a clear report with per-paragraph signal scores and an overall AI-likeness estimate—easy to share with editors, clients, or your team.
Signal clarity, not guesswork
Know what reads AI-like — and fix it
AI detection anxiety usually comes from opaque scores. RewritelyApp's Detector breaks results into clear, sentence-level signals you can actually act on.
See which lines read generic, repetitive, or overly uniform—then take targeted steps to improve clarity and natural flow.
Use detection as guidance, not a verdict. Review results with context and revise responsibly.
Why RewritelyApp Detector
Detect AI writing with confidence
Our detector uses the same perplexity and burstiness analysis as GPTZero and Turnitin, but surfaces the results in plain language so anyone can act on them.
- Sentence-level signal highlights
Each sentence is highlighted so you can pinpoint exactly which passages read most templated and need attention.
- Research-grounded signals
Pattern-level scoring based on widely used stylometric indicators (variation, predictability, specificity).
- Easy to share
Export results to share with editors, clients, or your team—clear signal scores and highlights included.
- Works on any domain
Academic papers, blog posts, legal briefs, marketing copy — the detector handles all writing styles.
What is an AI Content Detector?
An AI content detector reviews writing for patterns commonly associated with AI-generated text. RewritelyApp's Detector provides a signal score and sentence-level highlights so you can find lines that read overly generic or templated.
RewritelyApp's Detector looks at 33 measurable writing signals—including repetition, sentence variety, specificity, and stylistic uniformity. Rather than a single black-box score, it gives you interpretable, sentence-level highlights you can act on immediately.
Why RewritelyApp Detector beats black-box scores
Most detectors stop at a number. RewritelyApp shows the signal behind the score so you can improve.
Other AI detectors
Opaque score
One number with no explanation.
No fix path
Doesn’t show what to improve next.
Context blind
Formal writing can be unfairly flagged.
RewritelyApp Detector
ActionableSentence highlights
See exactly which lines read most templated.
Actionable fixes
Clear guidance to rewrite with Humanizer.
Signal transparency
33 measurable signals explained in plain language.
How to Use the AI Detector
Get sentence-level signal highlights in three steps.
Paste your text
Copy any draft — essays, articles, reports, emails, or any AI-assisted content.
Run the analysis
Click Detect and let the system analyze your text for AI-like patterns and generic phrasing.
Review and revise
Use the signal score and sentence highlights to decide what to improve, then open Humanizer to fix it.
Why Use RewritelyApp's AI Detector?
A signal check is only useful if you can act on it.
Actionable
Sentence-level highlights
Each sentence is scored so you see exactly which lines read most templated. Faster than guessing from one number.
Transparent
Signal scoring, not a verdict
Pattern-level scoring across your document based on common linguistic signals used in AI-likeness analysis.
Honest
Honest about limitations
We explicitly warn against over-interpreting results. Writing style and context affect scores—we tell you that.
Connected
Instant revision path
See what reads generic and open Humanizer directly to fix it—no copy-pasting between tools.
Global
Multi-language support
Analyze AI-like signals in English, Spanish, Portuguese, French, and German writing.
Free
Free to start
Run detector scans on the free plan. No credit card required.
When to Use the AI Detector
Use it as part of your writing review process—not as a final verdict.
Before submission
Check your essay, assignment, or report for AI-like patterns before handing it in.
Before publishing
Scan articles and blog posts to catch templated phrasing before they go live.
Editorial quality pass
Use as a final check to catch repetitive phrasing and improve readability across any content.
Unlock deeper AI Detector insights
Start free for quick scans, then upgrade for advanced breakdowns and higher volume.
Free
Quick scans for small drafts.
- Basic detection scanSignal score with core highlights.
- Limited lengthBest for short drafts.
- Standard speedReliable processing for everyday use.
Premium
Full breakdowns and faster review workflows.
- Deep signal breakdownsMore detail on why lines read AI-like.
- Exportable reportsShare or save detector summaries.
- Batch scansReview multiple drafts faster.
AI Detector guides and resources
Detection signals, false positives, and revision workflows from the RewritelyApp team.
Writing Tips
AI Detector False Positives: Why Human Writing Gets Flagged and What to Do
Why AI detectors flag human writing as AI-generated—and how to reduce it. Practical guide for students, ESL writers, and professionals who get incorrectly flagged.
Read article →
AI Writing
How Copyleaks Scores AI-Assisted Writing: A 2026 Quality Guide
How Copyleaks evaluates writing signals and what natural, high-quality text looks like to the detector. Practical steps tested on 100+ documents.
Read article →
AI Writing
AI Detector Accuracy in 2026: False Positive Rates, Real Consequences, and What Writers Can Do
False positive rates range from 2% to 12% across major AI detectors in 2026. We tested 500 human-written texts—here's who gets flagged, why ESL writers face higher rates, and how to write more clearly.
Read article →AI Detector FAQs
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See what reads generic—then fix it.
Open the Humanizer, paste your text, and apply targeted rewriting to improve naturalness and clarity.