Tools/Developer tools/UUID Generator and SHA Hash Calculator
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UUID Generator and SHA Hash Calculator

Generate UUIDs in batches or calculate SHA-256, SHA-384, and SHA-512 text digests locally in your browser.

UUID list0 items

Input and result notes

UUIDs identify items; hashes summarize content. They are not interchangeable. Digests depend on the algorithm and encoded bytes, and a random identifier is not a password.

Developer tools
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    Calculate SHA-256 or SHA-512 checksums for local files.

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    Generate a chosen number of cryptographically random bytes as hexadecimal text with an optional 0x prefix.

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    Calculate the CRC-32 checksum of text and display its hexadecimal value for error-detection comparisons.

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    Generate time-sortable ULID identifiers in batches using their standard 26-character representation.