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

Compute SHA-1, SHA-256 and SHA-512 hashes of any text. SubtleCrypto in your browser — no uploads.

100% in your browser — files never uploaded.
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How to use the Hash Generator (SHA-1 / SHA-256 / SHA-512)

  1. 1
    Use the controls
    Each tool runs entirely in your browser — no uploads.
  2. 2
    Read the output
    Updates live, with errors flagged if input is invalid.
  3. 3
    Copy
    Click Copy to put the result on your clipboard.

About this tool

SHA hashes are fixed-length fingerprints of input data. Two identical inputs always produce identical hashes; even a tiny change produces a completely different one.

SHA-256 is the modern default for integrity checks and file fingerprints. SHA-1 is deprecated for security but still common for git commit IDs. SHA-512 is used where 256 bits aren't sufficient.

Frequently asked questions

Free?
Yes.
Uses what API?
Browser's SubtleCrypto — built-in, no library needed.
MD5?
MD5 isn't in SubtleCrypto. For integrity-only MD5 use a dedicated tool — but it's insecure.
Hashes file contents?
This is a text-input tool. For file hashing, use a dedicated tool.
Mobile?
Yes.

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