Hash Generator & Checker
Generate and verify cryptographic hashes instantly. Support for MD5, SHA-1, and SHA-256. Perfect for file integrity checks, password hashing, and security testing.
About MD5
A 128-bit hash function. While fast, it's not cryptographically secure due to collision vulnerabilities. Suitable for checksums but not for security purposes.
About SHA-1
A 160-bit hash function. Like MD5, it's no longer considered cryptographically secure. Still used in some legacy systems but not recommended for new security applications.
About SHA-256
A 256-bit hash function from the SHA-2 family. Currently considered cryptographically secure and widely used in security applications and blockchain technology.
Key Features
Multiple Hash Algorithms
Generate hashes using MD5, SHA-1, and SHA-256 algorithms. Choose the algorithm that best suits your security requirements.
Real-time Hash Generation
See hash values update instantly as you type. Generate multiple hash types simultaneously for comparison.
Hash Verification
Verify if a given hash matches your input text. Perfect for checking file integrity and validating checksums.
File Support
Upload text files directly to generate their hash values. Convenient for checking file integrity and checksums.
Common Use Cases
Development
- Password hashing and storage
- File integrity verification
- Caching and cache busting
- Content verification
- Digital signatures
Security
- File checksum verification
- Data integrity checks
- Security testing
- Digital forensics
- Blockchain applications
Frequently Asked Questions
Which hash algorithm should I use?
For security-critical applications, use SHA-256 as it's currently considered cryptographically secure. MD5 and SHA-1 are faster but should only be used for checksums and non-security purposes due to known vulnerabilities.
Are the hashes case-sensitive?
Hash values themselves are typically displayed in hexadecimal and are case-insensitive. However, the input text used to generate the hash is case-sensitive, and changing even a single character will produce a completely different hash.
Is this tool secure?
All hash generation happens directly in your browser - no data is sent to our servers. However, for sensitive data or production use, we recommend using local development tools or dedicated security software.