Hash Generator
Generate MD5, SHA and other hash values, supporting multiple algorithms and output formats, providing professional solutions for data integrity verification and secure storage
Secure Hash Generator
Generate secure hash values for file integrity verification and digital fingerprinting. Supports MD5, SHA-1, SHA-256, SHA-384, and SHA-512 algorithms. All calculations are performed locally in your browser to ensure data privacy and security.
🔍 Main Use Cases
Text Hash Calculation
Enter your text content and select the appropriate hash algorithm
🛡️ Security Recommendations
• Use SHA-256 or higher for sensitive data processing
• MD5 and SHA-1 have known vulnerabilities, use only for non-critical scenarios
• Combine with salt values when storing passwords for enhanced security
Common test examples:
Click to quick fill
Select Hash Algorithm
💡 Recommendation: SHA-256 for general use, SHA-384 or SHA-512 for high security needs
Output Format Selection
Performance Metrics
Hash Algorithm Detailed Information
📋 Usage Guide
🚀 Quick Start
- Enter the content to process in the text box
- Select appropriate hash algorithm (SHA-256 recommended)
- Choose output format (Hexadecimal or Base64)
- Click "Generate Hash Values" button
- Copy the generated hash values for use
⚡ Advanced Tips
- Support drag and drop files to text box
- Generate multiple algorithm hash values simultaneously
- Support large file content processing
- Results automatically saved to history
- One-click copy all results
🔓 MD5 Algorithm
Produces 128-bit hash values with fast computation speed. Primarily used for file integrity verification. Due to collision vulnerabilities, it's not recommended for password storage or security authentication.
⚠️ SHA-1 Algorithm
Produces 160-bit hash values, but cryptographic experts have proven it has security vulnerabilities. Major companies like Google have discontinued support. Use SHA-256 or higher versions instead.
🔒 SHA-256 Algorithm
Produces 256-bit hash values and is the most widely used secure hash standard today. Adopted by Bitcoin, SSL certificates, and other critical applications with excellent balance of security and performance.
🛡️ SHA-384 Algorithm
Produces 384-bit hash values, providing higher security levels than SHA-256. Suitable for government, financial, and other scenarios requiring extremely high security.
🔐 SHA-512 Algorithm
Produces 512-bit hash values, offering the highest level of security protection. Suitable for long-term data storage, digital signatures, and other applications requiring maximum security.
💡 Real-world Applications
File integrity verification, digital signatures, password storage, blockchain technology, API security authentication, data deduplication, and many other practical applications.
Frequently Asked Questions
🤔 What is a hash function?
A hash function is a mathematical function that converts input data of any length into a fixed-length output. The output is called a hash value or digest, which has irreversibility and uniqueness properties.
🔐 Why do we need hash verification?
Hash verification ensures data integrity and detects whether data has been tampered with. Even tiny changes in data will result in completely different hash values.
⚡ Will processing large files be slow?
Modern browsers' Web Crypto API is optimized for fast processing of large files. However, it's recommended to process very large files (> 100MB) in chunks.
🛡️ How is data security guaranteed?
All calculations are performed locally in your browser, and data is not uploaded to servers. This ensures your sensitive information won't be leaked.
🔄 Why do different algorithms produce different hash values?
Different hash algorithms use different mathematical functions and output lengths, so the same input will produce different hash values.
📱 Does it support mobile devices?
Fully supports mobile devices with responsive design ensuring normal operation on phones and tablets.