Text Diff Checker

Compare two versions of any text and instantly see what changed. Choose line-level or word-level granularity, with color-coded additions and deletions. Perfect for reviewing edits, configs and code changes.

Runs 100% in your browserNo signup neededFree forever

Paste the original in the left panel and the modified version on the right. The diff engine computes additions and deletions in place, with a unified combined view you can copy.

Compare two texts

Original

Modified

+4 added−3 removed

Version A81 chars

Version B98 chars

function greet(name) {

console.log("hello, " + name);

function greet(name = "friend") {

console.log("hi, " + name);

}

greet("DevWorkBench");

greet();

Diff computed locally with the Myers algorithm.Updates as you type.

Line-level colours whole added/removed lines; word-level highlights just the changed tokens inside each changed block. Your texts never leave this tab.

Frequently asked questions

What do the colors mean?

Green highlights text that was added in the right input; red shows text that was removed relative to the original.

Can I see this as a git-style unified diff?

Yes — the combined view prints '-' and '+' prefixed lines exactly like git diff, and you can copy it directly.

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