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Free developer utilities that run entirely in your browser. Fast, private, and always free.

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  3. Hash Generator

Hash Generator

Generate SHA-1, SHA-256, SHA-384, SHA-512 hashes

Related Tools

  • UUID Generator - generate unique identifiers
  • Password Generator - create secure passwords
  • Base64 Encoder - encode binary data as text
  • Number Base Converter - work with hexadecimal output

How to Use Hash Generator

  1. Enter your text

    Type or paste the text you want to hash into the input field.

  2. View all hash types

    See your text hashed with SHA-1, SHA-256, SHA-384, and SHA-512 algorithms.

  3. Copy any hash

    Click the Copy button next to any hash to copy it to your clipboard.

Frequently Asked Questions

Is this Hash Generator free and secure?
Yes, the Hash Generator is completely free to use with no limitations. All hashing is performed locally in your browser using the Web Crypto API, so your input text never leaves your device. This ensures both privacy and security for sensitive data.
What is a cryptographic hash and what is it used for?
A cryptographic hash is a fixed-size string of characters generated from input data of any size. Hashes are used for password storage, data integrity verification, digital signatures, and checksums. The same input always produces the same hash, but it is computationally infeasible to reverse a hash back to the original input.
Which hash algorithm should I use?
For most purposes, SHA-256 is recommended as it provides a good balance of security and performance. SHA-512 offers more security for highly sensitive applications. SHA-1 is considered weak and should only be used for legacy compatibility. For password hashing, specialized algorithms like bcrypt or Argon2 are preferred over these general-purpose hashes.
Can I verify a file's integrity with this tool?
This tool generates hashes from text input. To verify file integrity, you would paste the file's contents as text. For binary files, you would need a tool that can read the raw file bytes. The hash you generate can be compared against a known hash to verify the data has not been modified.
Why can I not reverse a hash to get the original text?
Cryptographic hash functions are designed to be one-way functions. While the same input always produces the same hash, infinite possible inputs could theoretically produce the same hash (though collisions are extremely rare). This irreversibility is what makes hashes secure for password storage and data integrity verification.