Hash Generator

Convert text into SHA-1, SHA-256, and SHA-512 hashes.

Category: Converters

When to use?

Use it to generate a hash for verifying file or text integrity, or to see how a hash function works for learning purposes.

How to use

  • Enter text.
  • Choose the hash algorithm (SHA-1, SHA-256, SHA-512).
  • Copy the generated hash.

Input Explanation

Enter the original string to hash. Even a tiny change produces a completely different hash.

Calculation Basis

It generates the hash with the browser Web Crypto API. A hash is one-way and the original data cannot be restored.

Usage Examples

  • Verify file integrity - Generate a hash of text or data to verify integrity.
  • Learn password hashing - See how a hash function works directly.
  • Verify downloads - Check whether a downloaded file's hash matches the provided value.

Examples

  • "hello" (SHA-256) → 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824
  • Compare a text's SHA-1, SHA-256, SHA-512 hashes on one screen

Cautions

  • A hash is not encryption. Use dedicated algorithms like bcrypt or Argon2 for password storage.
  • A mismatched encoding standard or complex nested data may break or drop the structure.

Guides

Hash function traits

A hash converts input into a fixed-length string. The same input always gives the same output, and restoring the original from the output is practically impossible.

Choosing MD5 vs. SHA

MD5 and SHA-1 are fast but have collision weaknesses and are not recommended for security. Use SHA-256 or higher for file integrity or password storage.

FAQ

Can a hash be decrypted?

No. A hash is one-way and the original data cannot be restored.

Which algorithms are supported?

SHA-1, SHA-256, and SHA-512, which the browser Web Crypto API supports reliably.

Does the same input always give the same hash?

Yes. The same input always produces the same hash, usable for integrity verification.

Why no MD5?

MD5 is insecure and not recommended, so only the safer SHA family is provided.

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