Question 1

How is this different from the plain Text Diff tool?

Accepted Answer

Text Diff is optimised for arbitrary text (config, logs, notes) with a single-view line diff. Code Diff adds syntax highlighting for 14 languages, a side-by-side view, and options to ignore whitespace / case — so reviewing a refactor or a copy-pasted snippet is easier on the eyes.

Question 2

Which languages have highlighting?

Accepted Answer

JavaScript, TypeScript, Python, Go, Rust, Java, C#, SQL, CSS, HTML/XML, JSON, YAML, Shell/Bash, and plain text. The tokenizer identifies keywords, strings, comments, and numbers — enough to make code readable in the diff view.

Question 3

Can this replace git diff?

Accepted Answer

For quick two-snippet comparisons — yes. For real code reviews you still want git diff (it understands renames, follows history, integrates with hunks). Use this when the two things you're comparing don't live in a git repo yet (paste from a chat, a PR review email, or a coworker's screen).

1	−	function greet(name) {	1	+	function greet(name = "world") {
2	−	if (!name) {	2	+	// Default parameter added in ES2015
3	−	return "Hello, world";	3	+	return `Hello, ${name}`;
4	−	}
5	−	return "Hello, " + name;
6		}	4		}
7			5

Code Diff — Side-by-Side with Syntax Highlighting

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