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File Hash Calculator

Compute cryptographic hashes (MD5, SHA‑1, SHA‑256, SHA‑512) for any file directly in your browser. Verify file integrity, compare files, or check checksums securely — no upload, no sign‑up, no limits. All processing is performed locally on your device, so your data stays private.

🔒 Processing happens in your browser — files are never uploadedFree · No sign-up required

How to Use

  1. 1Select a file – drag it onto the drop zone or click to browse your computer.
  2. 2The tool automatically reads the file and calculates all four hashes. A progress bar shows how far the read has gone.
  3. 3Once complete, the four hash values are displayed. Use the individual copy buttons or the “Copy All” button to grab the results, or download them as a .txt file.

Need more power?

Upgrade to Pro for unlimited tasks, larger files, no watermarks.

Go Pro — $9/month

Why use ShowPro's File Hash Calculator?

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100% Private
Files never leave your browser. Zero server uploads.
Instant Results
Processing happens locally — no waiting for uploads.
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Completely Free
No account needed. Use 5 times per day, always free.

Frequently Asked Questions

Is my file uploaded to a server?

No. The entire hashing process uses only your browser’s File API and cryptographic libraries. No data is transmitted anywhere.

What is the largest file I can hash?

There is no enforced limit. The tool reads files in small chunks, so it can handle very large files (several gigabytes) on most modern devices. Performance may vary with file size and hardware.

Why is MD5 included if it’s considered insecure?

MD5 is still widely used for quick integrity checks and non‑security‑critical comparisons. For scenarios where security matters, use SHA‑256 or SHA‑512. The tool gives you the choice.