100% In-Browser • Your files never leave your device

Text Diff & Code Compare Tool

Compare two text snippets or code files side-by-side with instant additions and deletions highlighting. 100% private in-browser diff.

Confronta Testo & Codice (Client-Side)
Differenze rilevate:+5 aggiunte-4 rimozioni
1-function calculateTotal(price, tax) {
2- var discount = 0;
1+function calculateTotal(price, tax, coupon = 0) {
2+ let discount = coupon;
33 if (price > 100) {
4- discount = 10;
4+ discount = Math.max(discount, 15);
55 }
6- return (price - discount) + tax;
6+ const subtotal = price - discount;
7+ return subtotal + (subtotal * tax);
78 }

How to use Text Diff & Code Compare Tool

1

Paste the original version in the left box.

2

Paste the updated or modified version in the right box.

3

Click 'Compare Differences' to calculate the line-by-line LCS diff.

4

View highlighted additions (+) and deletions (-) or copy the patch.

Frequently Asked Questions (FAQ)

Can I safely compare confidential legal contracts or proprietary source code?

Yes! The diff calculation runs entirely in JavaScript on your device. No text or code is ever sent to our servers.