PepsTools

Developer Tools

SHA-256 Hash Generator

Compute a SHA-256 hex digest for text or a local file with Web Crypto.

SHA-256 is a hash, not encryption. Files stay in the browser. Inputs over 40 MB are refused.

How to use it

Paste text and Hash text, or choose a file and Hash file. Copy the digest from the result box.

Example

SHA-256 is a hash, not encryption. Inputs over 40 MB are refused.

Input

PepsTools

Result

The SHA-256 hex digest of that UTF-8 string

How it works

crypto.subtle.digest computes SHA-256 over the bytes. Text is encoded as UTF-8.

Common errors

  • A 50 MB file was refused Stay within 40 MB or hash it with a local CLI tool.
  • Web Crypto is missing Update the browser.

Limitations

There is no HMAC mode and no streaming progress UI for multi-gigabyte files.

Privacy

The text you paste is processed in your browser. PepsTools does not receive it, store it, or send it to another service.

Questions

Can I decrypt a SHA-256 digest?

No. Hashing is one-way. This page never calls the digest encryption.