Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-512 hashes from your text instantly. All processing happens locally in your browser.

MD5
Enter text to generate hash
SHA-1
Enter text to generate hash
SHA-256
Enter text to generate hash
SHA-512
Enter text to generate hash

Security & Privacy

  • All processing happens locally in your browser
  • No data is sent to any server
  • Your input text never leaves your computer
  • Generated hashes are for immediate use only

Online Hash Generator - Create Secure Hashes Instantly

Our Hash Generator Tool allows you to create multiple types of cryptographic hashes from any text input. Generate MD5, SHA-1, SHA-256, and SHA-512 hashes instantly with complete privacy - all processing happens in your browser.

What Are Cryptographic Hashes?

Cryptographic hashes are one-way functions that convert input data of any size into fixed-size output strings. They're commonly used for:

Supported Hash Algorithms

MD5 (Message Digest Algorithm 5)

Produces a 128-bit (16-byte) hash value, typically rendered as a 32-character hexadecimal number. While fast and widely used, MD5 is considered cryptographically broken and unsuitable for further use in security applications due to vulnerability to collision attacks.

SHA-1 (Secure Hash Algorithm 1)

Produces a 160-bit (20-byte) hash value. SHA-1 was designed by the NSA and was widely used for security applications. However, practical collision attacks have been demonstrated, and it's no longer considered secure against well-funded attackers.

SHA-256 (Secure Hash Algorithm 256-bit)

Part of the SHA-2 family, produces a 256-bit (32-byte) hash. This is currently the recommended hash function for most cryptographic applications, including SSL/TLS certificates, Bitcoin, and other cryptocurrencies.

SHA-512 (Secure Hash Algorithm 512-bit)

Also part of the SHA-2 family, produces a 512-bit (64-byte) hash. Offers higher security than SHA-256 and is used in applications where stronger security guarantees are needed. It's slower than SHA-256 but provides better security margins.

Complete Privacy & Security

Unlike many online hash generators, our tool works entirely in your browser:

Common Use Cases

  1. Password Hashing - Generate hashes for password storage (use with salt)
  2. Data Verification - Create checksums for files or messages
  3. API Security - Generate authentication tokens
  4. Digital Signatures - Create unique identifiers for documents
  5. Learning & Testing - Understand how different hash functions work
  6. Blockchain Development - Test hash generation for blockchain applications

Frequently Asked Questions

Is it safe to hash passwords with this tool?

While you can generate password hashes, note that proper password storage requires additional security measures like salting and key stretching (PBKDF2, bcrypt, or Argon2). This tool is best for learning, testing, or non-critical applications.

Why are MD5 and SHA-1 still included?

We include MD5 and SHA-1 for compatibility testing and legacy system support. However, for any security-critical application, you should use SHA-256 or SHA-512.

Can I hash files with this tool?

Currently, this tool only processes text input. For file hashing, you would need to upload the file and read its contents. We may add file hashing in a future update.

Are the generated hashes reversible?

No, cryptographic hash functions are designed to be one-way functions. You cannot reverse a hash to get the original input. This is a fundamental property of secure hash functions.

How long can the input text be?

There's virtually no limit to the input length for cryptographic hash functions. However, for practical purposes in the browser, very large inputs may affect performance.

Can I use this tool offline?

Yes! Since all processing happens in your browser, you can save this page and use it offline. Your data never needs to connect to any server.