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Pedro Ivotools

SHA-1 Hash Generator

Generate the SHA-1 hash of any text with the browser's Web Crypto API. Fast, local and never uploaded.

Local calculation
The result is calculated in your browser.
Private by default
Nothing you enter leaves your browser.
SHA-1 hash

How it works

The text is encoded as UTF-8 and digested with crypto.subtle.digest('SHA-1'). SHA-1 is considered weak against collisions; prefer SHA-256 for anything security related.

  • SHA Hash Generator

    Calculate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text with the Web Crypto API, without uploading it.

  • MD5 Hash Generator

    Generate the MD5 hash of any text locally. Useful for checksums and legacy systems; do not use MD5 for passwords.

  • CRC32 Calculator

    Calculate the CRC32 checksum of any text, the same checksum used by ZIP, PNG and Ethernet, right in your browser.

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