Create cryptographic hashes using MD5, SHA1, SHA256, SHA512 and other algorithms
Generating hashes... This may take a moment for large files.
Want to embed this hash generator on your website? Use this code:
MD5 produces a 128-bit (16-byte) hash value, typically expressed as a 32-digit hexadecimal number.
Note: MD5 is considered cryptographically broken and unsuitable for further use.
SHA-1 produces a 160-bit (20-byte) hash value, typically rendered as a 40-digit hexadecimal number.
Note: SHA-1 is no longer considered secure against well-funded attackers.
SHA-256 produces a 256-bit (32-byte) hash value, typically rendered as a 64-digit hexadecimal number.
Use Case: Recommended for most security-sensitive applications.
SHA-512 produces a 512-bit (64-byte) hash value, typically rendered as a 128-digit hexadecimal number.
Use Case: High-security applications where collision resistance is critical.
Hashing is commonly used to verify file integrity and authenticity.
Use Case: Verifying downloaded files haven't been corrupted or tampered with.
Hashing is used to securely store passwords (though with added salt and multiple iterations).
Note: For passwords, use specialized algorithms like bcrypt, not plain hashes.
Learn the basics of cryptographic hash functions, how they work, and their various applications in security.
Read Tutorial →Step-by-step guide to using hashes to verify that files haven't been corrupted or tampered with.
Read Tutorial →Learn how to securely hash passwords using modern algorithms like bcrypt, Argon2, and PBKDF2.
Read Tutorial →Compare different hash algorithms and learn which one to use for your specific use case.
Read Tutorial →Learn about the most common pitfalls when implementing hashing and how to avoid them.
Read Tutorial →Best practices for testing your hash implementation, including test vectors and validation techniques.
Read Tutorial →Compare different hash algorithms to understand their strengths and weaknesses:
| Algorithm | Output Size | Security | Speed | Common Uses |
|---|---|---|---|---|
| MD5 | 128 bits | ❌ Broken | Very Fast | Checksums, legacy systems |
| SHA-1 | 160 bits | ❌ Vulnerable | Fast | Git, legacy certificates |
| SHA-256 | 256 bits | ✅ Secure | Moderate | SSL certificates, blockchain |
| SHA-512 | 512 bits | ✅ Very Secure | Moderate | High-security applications |
| SHA3-256 | 256 bits | ✅ Very Secure | Moderate | Future-proof applications |
| RIPEMD-160 | 160 bits | ✅ Secure | Fast | Bitcoin addresses |
All hashing happens in your browser. Your data never leaves your device, ensuring maximum privacy and security.
Built with modern web standards and optimized for performance. Works instantly without server delays.
Fully responsive design that works perfectly on all devices - desktop, tablet, and mobile.
Not just a tool - includes comprehensive guides, examples, and best practices to help you learn.
A hash function is any function that can be used to map data of arbitrary size to fixed-size values. The values returned by a hash function are called hash values, hash codes, digests, or simply hashes.
The same input will always produce the same output hash value.
The hash value can be computed quickly for any given input.
It is computationally infeasible to reverse the hash function to find the original input.
A small change to the input drastically changes the output hash.
It is computationally infeasible to find two different inputs that produce the same hash output.
The output is always the same length regardless of input size.
Enhance your security knowledge with these premium resources: