Hash Validator

Validate that a string is a valid hash format (hex length for MD5, SHA-1, SHA-256, etc.). Auto-detect or specify algorithm.

About this tool

Checks that the input is hexadecimal and has the correct length for the chosen algorithm (or auto-detects by length). MD5=32, SHA-1=40, SHA-224=56, SHA-256=64, SHA-384=96, SHA-512=128 hex chars.

Algorithm (optional – auto-detect if empty)

Hash string

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