Free AI Content Detector by Content TraceFree AI Content Detector
by Content Trace

Deep AI Content Analysis

Paste. Analyze. Know.

Content Trace is a free AI detection tool that analyzes text across 32 signals including writing patterns, sentence structure, and cognitive fingerprinting. Used by educators, writers, and content professionals worldwide.

0 words · 0/10,000 chars
8
Sections
32
Signals
100
Point Scale
Free
Always
How scores are interpreted
0255075100
Likely AI
0 – 24
Leans AI
25 – 49
Leans Human
50 – 74
Likely Human
75 – 100
DisclaimerContent Trace provides probabilistic analysis only and does not constitute a definitive determination of authorship. Results should not be used as evidence in academic, legal, employment, or disciplinary proceedings. AI detection is an imperfect science — scores may be affected by writing style, text length, editing, translation, or subject matter. A high Human Score does not guarantee human authorship, and a low score does not prove AI generation. Content Trace is provided free of charge and without warranty of any kind. Web Thrive, LLC accepts no liability for decisions made based on analysis results.

How It Works

Three steps. No account. No waiting.

📋
STEP 1
Paste Your Text
Drop in any text — an essay, blog post, email, social caption, or anything else you want to check.
🔍
STEP 2
Analyze
Our model scores your content across 8 sections and 32 individual signals in seconds.
📊
STEP 3
Get Your Results
Receive a Human Score out of 100, with a full breakdown by section so you know exactly why.

Who Uses Content Trace

Trusted by people who care about content authenticity.

🎓
Teachers & Educators
Verify student submissions and maintain academic integrity without expensive institutional tools.
✍️
Writers & Bloggers
Confirm your own work reads as authentically human before publishing or submitting.
📣
Content & SEO Professionals
Audit content before it goes live — especially when working with freelancers or AI-assisted drafts.
📚
Students
Check your own writing for AI-like patterns before submitting, and understand how to write more naturally.
🗞️
Publishers & Editors
Screen incoming content and maintain quality standards across a growing volume of submissions.

Why Content Trace

Not all AI detectors are built the same.

🆓
100% Free
No paywalls. No trial periods. No credit card. Free, always.
🧠
32 Signals
Far beyond basic perplexity checks — we analyze cognitive fingerprinting, voice, emotion, and more.
🚫
No Signup Required
Paste and analyze. No account, no email, no friction.
🔒
Privacy Focused
Your text is never stored or used to train models. What you paste stays yours.

What People Are Saying

Used by educators, writers, and content teams every day.

"

Quick and accurate — a lifesaver for my classroom. I finally have a free tool I can actually rely on.

— High school English teacher
"

I use this before submitting any freelance piece. It catches patterns in my writing I didn't even notice.

— Freelance content writer
"

The section breakdown is genuinely useful. It doesn't just give a score — it tells you why.

— SEO manager at a digital agency

Frequently Asked Questions

Everything you need to know about Content Trace.

How accurate is Content Trace?
Content Trace uses a multi-signal approach across 32 factors to produce a probabilistic Human Score. It is significantly more nuanced than single-metric detectors, but no AI detection tool is 100% accurate. Scores should be interpreted as indicators, not verdicts — particularly for short texts or content that has been heavily edited.
Is it really free?
Yes, completely. There is no paid tier, no trial, and no credit card required. Content Trace is free to use for any volume of analysis. We're supported by advertising, not subscriptions.
Can I use it for academic work?
Content Trace is commonly used by educators to screen student work and by students to review their own writing. However, our disclaimer applies: results should not be used as sole evidence in academic disciplinary proceedings. AI detection is probabilistic, and a low Human Score does not prove AI authorship.
Does Content Trace store my text?
No. Text submitted for analysis is processed in real time and is not stored, logged, or used to train any models. Your content remains private.
What makes Content Trace different from other AI detectors?
Most AI detectors rely on statistical proxies like perplexity and burstiness. Content Trace goes further — analyzing cognitive fingerprinting, emotional texture, voice authenticity, and pragmatic signals that are much harder for AI to replicate. The result is a richer, more explainable score.

From the blog

Articles on AI writing, detection, and content authenticity.

All posts →
Explainer6 min

How AI Text Detection Actually Works

What's actually happening under the hood, and why some detection approaches are more reliable than others.

Read →
Analysis7 min

Why AI Writing Sounds Different

AI writing is grammatically flawless. So why does it feel off? The answer is in how humans actually think on the page.

Read →
Guide8 min

How to Humanize AI Content: A Practical Guide

A practical framework for making AI-generated content read authentically before you publish.

Read →