Is the text uploaded?

No. SHA-256 uses the Web Crypto API in this tab.

Why is MD5 also shown?

People still search for legacy checksums. Do not use MD5 for passwords. Prefer SHA-256.

HMAC instead of a raw hash?

Use the HMAC-SHA-256 generator when you have a secret key.

Runs in your browser · Last updated 7 September 2026

Free SHA256 Hash Generator

Free SHA-256 hash generator. Hash text to SHA-256 (and MD5 / SHA-1) in this tab with Web Crypto. Nothing is uploaded.

Text

MD5

5d41402abc4b2a76b9719d911017c592

SHA-1

…

SHA-256

…

MD5 is shown because people still search for it. Do not use it for passwords. SHA-256 is computed with the Web Crypto API.

How to use this tool

Paste the text you want to checksum.
Copy the SHA-256 hex digest.
Ignore MD5 unless you are matching a legacy file.

Worked example

Input hello must produce SHA-256 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824 and MD5 5d41402abc4b2a76b9719d911017c592. Same engine as the MD5 page — this URL targets the SHA-256 query.

Frequently asked questions

What is SHA-256("hello")?: 2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824. Use that as a smoke test.
Is the text uploaded?: No. SHA-256 uses the Web Crypto API in this tab.
Why is MD5 also shown?: People still search for legacy checksums. Do not use MD5 for passwords. Prefer SHA-256.
HMAC instead of a raw hash?: Use the HMAC-SHA-256 generator when you have a secret key.
File upload?: Not on this page. Paste text.