Are my strings sent to any server?

No. All hashing is performed locally in your browser using the Web Crypto API. Your strings never leave your device.

Why does SHA-1 still appear here if it is considered broken?

SHA-1 is still widely used for non-security purposes such as Git commit IDs and legacy checksums. This tool includes it for informational and compatibility checking purposes, not for new security designs.

Why is MD5 computed differently from the others?

The Web Crypto API does not support MD5 because it is cryptographically broken. This tool implements MD5 in pure JavaScript for completeness, since it is still used for non-security checksums.

How do I copy a hash value?

Click on any hash value shown in the results table. A brief confirmation message will appear confirming the value was copied to your clipboard.

What does "Match" mean exactly?

Match means the two strings produce a byte-for-byte identical digest for that algorithm. Even a single character difference in either string will produce a completely different hash and show "Differ".

String Hash Comparison

Name: String Hash Comparison
Availability: InStock
Author: Nham Vu

Enter two strings and instantly compare their MD5, SHA-1, SHA-256, and SHA-512 hashes side-by-side.

String A

String B

Algorithm	Hash — String A	Hash — String B	Result

Click any hash value to copy it to your clipboard.

Enter two strings above and click Compare Hashes to see results.

Copied!

Summary

Enter two strings and instantly compare their MD5, SHA-1, SHA-256, and SHA-512 hashes side-by-side.

How it works

Type or paste your first string into the left input field.
Type or paste your second string into the right input field.
Hashes for MD5, SHA-1, SHA-256, and SHA-512 are computed automatically as you type.
Each algorithm row shows a green "Match" badge when both digests are identical, or a red "Differ" badge when they are not.
Click any hash value to copy it to your clipboard.

Use cases

Verify that two files or configuration strings are identical by comparing their checksums.
Confirm a password hash matches the stored digest without revealing the plaintext.
Debug hash mismatches when integrating with APIs that sign requests.
Test and validate your own hashing implementation against a known reference.
Quickly check whether two seemingly different strings are actually the same content.
Audit data integrity after transfer or encoding transformations.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu