Smart Contract Similarity Checker
Find similar smart contracts, detect clones, and analyze code differences with AI-powered insights to identify potential vulnerabilities and improvements.
Contract Discovery
Search for similar contracts across the Ethereum blockchain by address, identifying potential clones, forks, and related implementations.
Code Comparison
Directly compare two contract source codes to identify differences, with detailed analysis of changes and their potential impact on functionality and security.
AI-Powered Analysis
Leverage advanced AI to analyze contract differences, highlighting security implications, optimization opportunities, and best practices recommendations.
Advanced bytecode analysis and smart contract pattern detection
Enter the Ethereum contract address to analyze
Higher values will return only very similar contracts (0.1 - 1.0)
Choose how to search for similar contracts
Maximum number of contracts to search (5-50)
Advanced Analysis Features
Bytecode Disassembly
Analyzes EVM opcodes and execution patterns
Design Pattern Detection
Identifies common smart contract patterns
Vulnerability Scanner
Detects potential security issues in bytecode
Clone Detection
Identifies exact bytecode matches and similar contracts
How to Use the Contract Similarity Checker
Find by Address
Enter an Ethereum contract address and adjust the similarity threshold to find similar contracts.
Compare Code
Paste two contract source codes into the comparison tool to analyze differences between them.
Review Analysis
Examine the AI-generated analysis of security implications, functional differences, and recommendations.
Apply Insights
Use the detailed insights to improve your contracts, identify vulnerabilities, and implement best practices.
Important Note
While our similarity checker provides valuable insights, it should be used as part of a comprehensive security review process. No automated tool can replace thorough manual auditing for critical contracts.
The AI analysis is based on pattern recognition and best practices, but may not catch all potential vulnerabilities or edge cases. Always verify findings with additional security tools and expert review.