ContentGuard
100% Free · No Signup Required

Free AI Content Detector & Plagiarism Checker

Verify authenticity in seconds. Detect ChatGPT, Claude, and Gemini text, check originality, correct grammar, and score readability.

Detect AI ContentCheck Plagiarism
10k+ daily usersReal-time processingNo document storage
Analysis Complete
Contentguard Editor

Artificial intelligence models are rapidly changing the way content is generated. This paragraph was entirely generated by a large language model to simulate AI patterns. ContentGuard AI uses advanced statistical markers like perplexity and burstiness to detect these patterns in seconds.

78%
AI Detected
AI Probability
78%
Readability
B-
Confidence
99.4%
0K+
Checks Completed
0K+
Monthly Users
0.0%
System Uptime
0%
Free Forever
ALL-IN-ONE WORKSPACE

Everything You Need to Analyze Writing

Detect AI-generated text, check plagiarism, correct grammar, and enhance readability — all on a single free, secure platform.

AI Content Detection

Advanced analysis to detect AI-generated text with sentence-level highlighting and confidence scores.

Plagiarism Checker

Check text originality with detailed similarity reports and source matching.

Grammar Analysis

Identify grammar, spelling, and punctuation errors with smart corrections.

Readability Analyzer

Measure reading level, complexity, and estimated reading time.

Citation Generator

Generate properly formatted citations in APA, MLA, Harvard, and Chicago styles.

Writing Metrics

Word count, character count, sentence analysis, and vocabulary density — all in real time.

SIMPLE PROCESS

How It Works

Get comprehensive writing statistics in three simple steps.

01

Paste or Upload

Paste your writing text directly, or upload PDF, DOCX, and TXT files.

02

Engine Processing

Our system analyzes content for AI generation, plagiarism, and grammar patterns.

03

Detailed Reports

View in-depth analysis reports with sentence highlights, scores, and exports.