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SHA-256 Hash Generator

Compute SHA-256 digest of text or files in your browser using Web Crypto API. Output in hex or Base64.

Free No signup Client-side Privacy friendly

— %

Hashing…

How to use

  1. 1 Pick Text or File mode.
  2. 2 Type / paste text, or choose a file (≤ 50 MB).
  3. 3 Pick output encoding (hex or Base64).
  4. 4 Copy the digest.

Why use this tool

  • Uses native Web Crypto API — hardware-accelerated where available.
  • SHA-256 is approved for general security use, including signatures.
  • Output in hex (64 chars) or Base64 (44 chars).
  • Pure client-side — files never upload.

Frequently asked questions

What is SHA-256 used for?

Cryptographic signatures, blockchain hashes (e.g. Bitcoin), TLS certificates, password storage when combined with a slow hash like PBKDF2, file integrity checks.

Does this work offline?

Yes — once the page loads, hashing runs entirely in your browser without internet.

Is the file uploaded?

No — files are read locally and hashed in-browser. Nothing leaves your device.

Summary

SHA-256 Hash Generator is a free developer utility by Zerethon Tools. Compute SHA-256 digest of text or files in your browser using Web Crypto API. Output in hex or Base64. Runs entirely in the browser — no signup, no upload.

Category
Developer
Pricing
Free
Privacy
Browser-based
Signup
Not required

Privacy

Your data never leaves your browser unless explicitly stated. SHA-256 Hash Generator runs entirely client-side — no server upload, no logging, no tracking of your input.

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