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Hash Generator

Create MD5, SHA-1, SHA-256, SHA-384, or SHA-512 checksums locally in your browser, and compare text digests with a published value.

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Hash Generator
Hash a file

Compute MD5, SHA-1, SHA-256, SHA-384, or SHA-512 checksums for a local file up to 50 MB. The file is processed in your browser and is never uploaded.

How to use it

  1. Paste text and select MD5, SHA-1, SHA-256, SHA-384, or SHA-512.
  2. Select Generate hash for the text digest, or enter a published checksum and choose Verify.
  3. To checksum bytes instead, expand Hash a file and choose a local file. MD5 and SHA-1 are legacy algorithms; use SHA-256 or stronger for security.
What is Hash Generator?

Create MD5, SHA-1, SHA-256, SHA-384, or SHA-512 checksums locally in your browser, and compare text digests with a published value.

How it works

SiteIndex computes text and local file checksums in your browser. SHA digests use the Web Crypto API and MD5 uses a local implementation; files are never uploaded. Enter a published digest to compare it against the selected algorithm.

Common uses
  • Generate a checksum to verify text or file integrity.
  • Compare a downloaded file's hash against a published checksum.
  • Produce a SHA hash for a development or QA workflow.
Limitations
  • Text is encoded as UTF-8; a file digest is computed over its bytes. These differ if encodings or line endings differ.
  • A checksum is not a password hash, keyed MAC, or proof that a file is trustworthy.
Frequently asked questions
Is my file uploaded anywhere?
No. The file is hashed entirely in your browser using the Web Crypto API and never leaves your device.

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