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SHA-256 Hash Generator — Free Web Crypto Hashing for Files

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 Updated

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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.

What is SHA-256 Hash Generator?

A SHA-256 Hash Generator is a tool that computes the SHA-256 message digest of text or files, producing a fixed-length cryptographic checksum of the input. It uses the browser's native Web Crypto API to perform the hashing and outputs the result in hexadecimal or Base64 encoding. The computation runs entirely in the browser, so the data being hashed is processed client-side and is never uploaded to a server.

Summary

SHA-256 Hash Generator is a free 開発者 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
開発者
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.

Compare

MD5 vs SHA-256 MD5 vs SHA-1 SHA-1 vs SHA-256

Learn the basics

What is Hash function?

How-to guides

How to generate an md5 hash

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