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    SHA Hash Generator (SHA-1, SHA-256, SHA-512)

    Instantly compute the SHA-1, SHA-256, SHA-384 and SHA-512 digests of your text in the browser.

    Runs in your browser, no data sent Free · No sign-up required
    SHA-1
    000866a7dfbbf43d54c0960d12d6ef2b357e8f0b
    SHA-256
    b6f2d11e8a1f8fb7dc2b71f9340d0efc333951ad3f74a57a11c683ab84f90fcc
    SHA-384
    84d5028126d017b6ebf1e498c847eef7664361d9793c083398d6cf23c66b18799808c247845b3261fb6f947ebbccecae
    SHA-512
    336b346cd41b386398895ff18db3a4b0b2469445f96a2fd68edc82a89d8a56d504b42279fd74751c00e7ba56ecd7cce1a7b5d6e5cdb2a58adb8fc39956e31aaa

    What is a hash used for?

    Hash functions are the fastest way to verify whether data has changed. If you take the SHA-256 digest of a file or text and recompute it later and get the same result, the data is intact. In software distribution, the integrity of downloaded files is usually checked this way (checksum).

    • File integrity: Verifying that downloaded data is not corrupted
    • Data fingerprint: Generating a unique identifier without exposing the content
    • Signature & verification: A fundamental building block of digital signature processes

    Privacy: All computation is done locally with your browser's Web Crypto API; your text is never sent to any server.

    Frequently Asked Questions

    A hash is a one-way function that converts data of any length into a fixed-length, unique 'fingerprint'. The same input always produces the same output, but it is practically impossible to recover the input from the output. It is used for data integrity verification and password storage.

    Both are secure hash algorithms from the SHA-2 family. SHA-256 produces a 256-bit (64-character) output, while SHA-512 produces a 512-bit (128-character) one. Because it is longer, SHA-512 theoretically has higher collision resistance; for most applications SHA-256 is more than enough.

    MD5 and SHA-1 are now considered cryptographically broken (insecure), and the Web Crypto API in modern browsers does not support MD5. For security-sensitive work, we recommend SHA-256 or higher. SHA-1 is provided only for compatibility with legacy systems.

    A plain SHA hash alone is not enough for storing passwords; a 'salt' should be added against attacks, and slow, dedicated algorithms such as bcrypt, scrypt or Argon2 should be used. SHA-256 is better suited for file integrity (checksum) verification.

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