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AI Code Detector

Detect AI-generated code using an AI code detector to distinguish AI vs. human patterns, highlight traces, and verify code authenticity. Upload or paste to analyze structure, logic, and originality across multiple programming languages.

Supported Languages:  

English

French

Spanish

German

All others

AutoEnglishAfrikaansAlbanianAmharicArabicArmenianAzerbaijaniBasqueBelarusianBengaliBosnianBulgarianCatalanCebuanoChichewaChinese SimplifiedChinese TraditionalCorsicanCroatianCzechDanishDutchEsperantoEstonianFilipinoFinnishFrenchFrisianGalicianGeorgianGermanGreekGujaratiHaitian CreoleHausaHawaiianHebrewHindiHmongHungarianIcelandicIgboIndonesianIrishItalianJapaneseJavaneseKannadaKazakhKhmerKoreanKurdishKyrgyzLaoLatinLatvianLithuanianLuxembourgishMacedonianMalagasyMalayMalayalamMalteseMaoriMarathiMongolianMyanmarNepaliNorwegianPashtoPersianPolishPortugueseRomanianRussianSamoanScots GaelicSerbianSesothoShonaSindhiSinhalaSlovakSlovenianSomaliSpanishSundaneseSwahiliSwedishTajikTamilTeluguThaiTurkishUkrainianUrduUzbekVietnameseWelshXhosaYiddishYorubaZulu

Try sample

AI
Human

(.doc, .docx, .pdf)

0/5000 characters

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Trusted by 10k+ Universities • 50k+ Businesses • 100+ Countries

Detect AI-Generated Code

AI code detector identifies AI-generated code using pattern recognition linked to AI code generation and modern AI programming practices. It distinguishes AI-generated logic from human-written code using structured behavioral signals. CudekAI provides an AI likelihood score and generates an AI-likelihood report to verify code authenticity.

detector.py

def detect_ai_code(snippet):
  # pattern + behavioral signals
  score = analyze(snippet)
  return {
    ai_likelihood: score,
    "verdict": "AI-generated",
  }
Human

// refine ranking{" "} const top = items{" "}   .filter(i => i.score > 0.6){" "}   .slice(0, 5);

AI

function getTopItems(items) {"{"}{" "}   return items.filter(...){" "} {"}"}

AI Likelihood Score

72% likely AI-generated

Distinguish AI vs Human-written Code

Differentiates AI vs. human code by evaluating behavioral and logical patterns across code structure. AI code detector classifies human-written and AI-generated code, including fully AI code, hybrid code, and partial AI patterns. CudekAI's AI code checker assigns an AI vs. human likelihood score using side-by-side comparison to deliver a clear classification verdict.

Highlight AI Code Traces

AI code detector highlights suspicious segments by identifying hidden AI-generated traces across code fragments and structural components. It applies line-level highlighting across individual classes and functions to expose mixed code segments with clarity. CudekAI generates color-coded results with code highlighting (AI/mixed/human), heatmap visualization, and segment-level breakdown for clear visual reporting.

AI

MIXED

HUMAN

1

import os

HUMAN

2

import json

HUMAN

3

 

HUMAN

4

def fetch_user_data(user_id):

AI

5

"""Fetches user data and returns dict."""

AI

6

response = requests.get(API + user_id)

MIXED

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return response.json()

MIXED

8

 

HUMAN

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users = [u for u in load() if u.active]

HUMAN

Verify Code Authenticity & Originality

Evaluate code originality and structural authorship signals across AI-written code patterns to verify authenticity. AI code detector confirms genuine code through originality and behavioral assessment checks. CudekAI performs authorship verification using attribution analysis, ownership confirmation, IP verification, and intellectual property checks.

Authorship Verification

Originality Check

Ownership Confirmation

IP Verification

Experience Core Features of AI Code Detector

Achieve High Accuracy

Delivers high accuracy using advanced machine learning and pattern recognition across multi-layered code analysis. Enhances verification reliability by producing precise results with cross-model compatibility and industry-grade precision.

Get Instant Code Analysis

Processes code instantly to deliver real-time detection with under-10-second analysis even for large and complex code blocks. Improves work efficiency through fast processing, detection history access, and quick screenshot summary sharing for review management.

Analyze Naming & Variable Patterns

Analyzes variable and function naming patterns to detect AI-like naming, inconsistencies, and abbreviation styles. Reveals structural naming issues by separating descriptive and generic identifiers to support cleaner, human-readable code structures.

Evaluate Comment Style & Documentation

Examines comment and documentation styles, including inline comments, block comments, and docstring patterns. CudekAI improves readability by identifying over-commenting, under-commenting, and redundant documentation practices.

Analyze Code Structure and Logic

Breaks down code structure and logic flow by examining syntax patterns and language-specific coding conventions. AI code detectors upgrade structural understanding by detecting redundant logic and non-standard coding practices.

Analyze Code Quality

Identifies code quality issues, including AI bugs, syntax errors, logical flaws, and security risks across codebases. Strengthens reliability by exposing maintainability issues and unsafe patterns in software projects.

Generate Detailed Reports

Compiles detection results into structured reports with confidence scores and AI vs. human likelihood breakdowns. Enhances decision-making with visual summaries, charts, and actionable insights for clearer interpretation.

How to Detect AI-Generated Code?

01

Paste, Upload, or Enter Code

Paste code, upload files, or enter code directly for AI code detection processing. CudekAI code checker supports code input, code samples, drag-and-drop upload, and repo or codebase uploads across multiple programming formats, including .py, .js, .ts, .java, .cpp, .php, .rb, .go, .swift, .html, .css, and .sql.

02

Run the AI Code Analysis

Run the AI code detector to scan code for AI-generated patterns, perform instant analysis, and detect AI coding signals using structured multi-step evaluation. Includes language detection, optimization options, and real-time scanning without watermark or metadata dependency.

03

Get a Detailed Detection Report

CudekAI Code Checker generates a structured detection report with an AI likelihood score, AI vs. human classification, and detailed detection results. Review outcomes with precise insights, confidence-based analysis, and clear result summaries for verification.

Multi-Model AI Code Detector

Detect AI-generated code across leading AI coding assistants and large language models used for software development.

GitHub Copilot

OpenAI icon

ChatGPT

Claude

Cursor

Gemini

Meta

Llama

DeepSeek

Grok

Grok

Multi-Language AI Code Detection

AI Python Detection

Analyzes Python code to identify AI-generated patterns such as PEP8 violations, wildcard imports, and outdated formatting styles. It compares Pythonic and non-Pythonic structures to detect AI programming signals in .py files.

.py

AI JavaScript & TypeScript Detector

Reviews JavaScript and TypeScript code for AI coding patterns, including var usage, jQuery patterns, loose equality, and modern ES6+ syntax. AI code checker also checks async/await usage, arrow functions, and frontend logic across .js, .ts, .jsx, and .tsx files.

.js
.ts
.jsx
.tsx

AI Java, Kotlin & C# Detection

Examines Java, Kotlin, and C# code for structural patterns such as naming verbosity and modern syntax usage. It evaluates JVM-based logic and code structure across .java, .kt, and .cs files.

.java
.kt
.cs

AI C, C++, & Go Detection

Inspects C, C++, and Go code for low-level patterns, including memory management, system-level logic, and concurrency structures like goroutines. CudekAI code detector processes .c, .cpp, .h, and .go files for structural anomalies.

.c
.cpp
.h
.go

AI PHP, Ruby & Rust Detection

Reviews PHP, Ruby, and Rust code for patterns such as legacy functions, global variables, Rails conventions, and ownership or borrow logic. AI code checker evaluates .php, .rb, and .rs files for structural signals.

.php
.rb
.rs

AI Swift, HTML, CSS & SQL Detection

Analyzes Swift, HTML, CSS, and SQL code for markup, styling, and query-level patterns. It detects structural anomalies in stylesheets and database logic across .swift, .html, .css, and .sql files.

.swift
.html
.css
.sql

Find Out Why CudekAI Is The Best AI Code Detector

Software Engineering & Development Teams

Developers, engineers, and software teams use CudekAI AI code detector to identify AI-generated code across code review and development workflows. It improves code quality in front-end, back-end, and full-stack development while supporting modern AI coding processes.

Code Reviewers & Quality Assurance Teams

Code reviewers and QA teams optimize code reviews by detecting AI-generated code in pull requests, commits, and repositories. CudekAI improves code audit accuracy across code reviews and large codebases.

Educators, Universities & Academic Integrity Teams

Educators, professors, and students use AI code checkers to detect AI code in academic assignments, programming assignments, and coursework. It supports academic integrity in grading and student evaluation.

Technical Recruiters & Hiring Teams

Recruiters and hiring managers evaluate coding tests and take-home assignments using CudekAI's code checker to check if code was written by AI in candidate submissions. It improves the assessment of coding tests and interview code reviews.

Everyday Developers & Self-Learners

Developers, beginners, and self-learners use AI code checkers for personal projects and coding practice. It detects AI codes to improve learning, coding skills, and programming understanding.

Pricing Plans: Start Free, Upgrade Anytime

AI Code Detector API Integration

Integrate the CudekAI Code Detector into your CI/CD pipelines, code review tools, and learning platforms with a single API call to scan code for AI-generated patterns at scale.

Supported Languages

The CudekAI AI Code Detector is available in 103 languages worldwide so developers across the globe can verify code authenticity in their native language.

🇬🇧

English

🇿🇦

Afrikaans

🇦🇱

Albanian

🇪🇹

Amharic

🇸🇦

Arabic

🇦🇲

Armenian

🇦🇿

Azerbaijani

🇪🇸

Basque

🇧🇾

Belarusian

🇧🇩

Bengali

🇧🇦

Bosnian

🇧🇬

Bulgarian

🇪🇸

Catalan

🇵🇭

Cebuano

🇲🇼

Chichewa

🇨🇳

Chinese Simplified

🇹🇼

Chinese Traditional

🇫🇷

Corsican

🇭🇷

Croatian

🇨🇿

Czech

🇩🇰

Danish

🇳🇱

Dutch

Esperanto

🇪🇪

Estonian

🇵🇭

Filipino

🇫🇮

Finnish

🇫🇷

French

🇳🇱

Frisian

🇪🇸

Galician

🇬🇪

Georgian

🇩🇪

German

🇬🇷

Greek

🇮🇳

Gujarati

🇭🇹

Haitian Creole

🇳🇬

Hausa

🇺🇸

Hawaiian

🇮🇱

Hebrew

🇮🇳

Hindi

🇱🇦

Hmong

🇭🇺

Hungarian

🇮🇸

Icelandic

🇳🇬

Igbo

🇮🇩

Indonesian

🇮🇪

Irish

🇮🇹

Italian

🇯🇵

Japanese

🇮🇩

Javanese

🇮🇳

Kannada

🇰🇿

Kazakh

🇰🇭

Khmer

🇰🇷

Korean

🇮🇶

Kurdish

🇰🇬

Kyrgyz

🇱🇦

Lao

🇻🇦

Latin

🇱🇻

Latvian

🇱🇹

Lithuanian

🇱🇺

Luxembourgish

🇲🇰

Macedonian

🇲🇬

Malagasy

🇲🇾

Malay

🇮🇳

Malayalam

🇲🇹

Maltese

🇳🇿

Maori

🇮🇳

Marathi

🇲🇳

Mongolian

🇲🇲

Myanmar

🇳🇵

Nepali

🇳🇴

Norwegian

🇦🇫

Pashto

🇮🇷

Persian

🇵🇱

Polish

🇵🇹

Portuguese

🇷🇴

Romanian

🇷🇺

Russian

🇼🇸

Samoan

🇬🇧

Scots Gaelic

🇷🇸

Serbian

🇱🇸

Sesotho

🇿🇼

Shona

🇵🇰

Sindhi

🇱🇰

Sinhala

🇸🇰

Slovak

🇸🇮

Slovenian

🇸🇴

Somali

🇪🇸

Spanish

🇮🇩

Sundanese

🇹🇿

Swahili

🇸🇪

Swedish

🇹🇯

Tajik

🇮🇳

Tamil

🇮🇳

Telugu

🇹🇭

Thai

🇹🇷

Turkish

🇺🇦

Ukrainian

🇵🇰

Urdu

🇺🇿

Uzbek

🇻🇳

Vietnamese

🇬🇧

Welsh

🇿🇦

Xhosa

🇮🇱

Yiddish

🇳🇬

Yoruba

🇿🇦

Zulu

Reviews

Professionals and everyday users rely on it

AI Content Detector

Cudekai's AI detector has been a real stress reliever. Some of my professors are strict about AI-written work, and this tool gives me confidence that my papers look authentic before I turn them in.

D

Daniel

Refine AI

I use Cudekai's humanizer tool after finishing my papers to make sure they actually sound like me. It smooths out the writing and makes everything flow naturally—like my own voice, just better polished.

C

Chelsea

Rewriter

Whenever I'm stuck trying to rephrase something, I just drop it into Cudekai's rewriter. It gives me cleaner, clearer versions in seconds and saves me so much time for other work.

R

Ricardo

Plagiarism Checker

Cudekai's plagiarism checker is really solid. The reports are detailed but easy to understand, which makes fixing issues much quicker. It's a must-have for my projects.

M

Michael

Support

Frequently Asked Questions (FAQs)

What is an AI code detector?

An AI code detector is an AI tool by CudekAI that analyzes code to identify whether it is written by humans or generated by AI models. It evaluates structure, logic, and coding patterns to deliver a reliable classification.

How to detect AI-generated code?

AI-generated code is detected by analyzing patterns, structure, and behavioral signals in code. CudekAI applies machine learning models to generate likelihood scores based on these indicators.

How to tell if code is AI-generated or human-written?

AI-generated code often shows consistent patterns, generic naming, and uniform logic structures. Human-written code usually reflects variation, intent, and personalized coding styles.

Is CudekAI's AI code detector accurate?

CudekAI provides high-accuracy results based on confidence scoring, though results are not absolute due to model variability. Outputs should be interpreted using probability-based insights.

Can AI detectors identify code from ChatGPT, Claude, or Copilot?

Modern detectors, including CudekAI, recognize patterns from tools like ChatGPT, Claude, and GitHub Copilot. They compare structural similarities across multiple AI coding models.

Which programming languages are supported?

CudekAI's AI code detector supports Python, JavaScript, Java, C++, Go, PHP, Ruby, Rust, and more. Detection adapts to language-specific syntax and coding patterns.

How does an AI code detector work?

CudekAI uses pattern recognition, machine learning, and multi-layer analysis to compare structural and stylistic signals. It classifies code as AI-generated or human-written based on behavior patterns.

Is my code data safe?

Code submitted for analysis is processed securely and is not stored or shared without permission. Privacy and data protection are maintained throughout the detection process.

Can AI code detectors analyze partial code snippets?

AI code detectors can analyze functions, snippets, and partial code segments. Larger code samples improve accuracy and detection reliability.

What makes code look AI-generated vs. human-written?

AI-generated code often includes repetitive structures, overly clean formatting, and predictable logic. Human-written code shows variation, optimization choices, and contextual decision-making.

Can CudekAI AI code detectors be used for students, teams, or hiring?

AI code checkers are widely used in education, development teams, and recruitment. It helps verify originality, assess coding skills, and maintain quality standards.

What is the difference between plagiarism detection and AI detection?

Plagiarism detection identifies copied code from existing sources, while AI detection identifies whether code is generated by AI models. Both serve different validation purposes.