Developer

Client-Side Hash Generator

Generate checksums locally without uploading files. Processing stays on your device — no upload, no account.

How to use Client-Side Hash Generator

  1. Paste text or choose a file.
  2. Generate MD5 / SHA-256 / SHA-512 digests.
  3. Copy the hex hashes you need.

Why use this free hash generator tool?

  • All processing happens locally in your browser. Your files are never uploaded to a server.
  • Web Crypto for SHA-256/512.
  • SparkMD5 for MD5.
  • Text and file modes.

Technical details

Web Crypto subtle.digest provides SHA-256 and SHA-512. MD5 uses SparkMD5 for legacy checksum compatibility - prefer SHA-256 for security-sensitive integrity checks.

Client-Side Hash Generator FAQ

Are files uploaded?

No. All processing happens locally in your browser. Your files are never uploaded to a server.

Is MD5 secure?

MD5 is fine for casual checksums, not password storage or collision-resistant security.

Hex vs base64?

This tool outputs lowercase hex digests.

Large files?

Hashing reads the file in the browser; very large files may take time.

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