DevOnlineTools

Text Diff Checker & Comparison

Compare code snippets or plain text side-by-side or unified to highlight additions, deletions, and line changes with difference filtering and file export.

devonlinetools://text/diff-checker
⌘ + EnterRun / Format
Shortcuts Active
+4 added−5 removed1 unchanged
Original
Modified
+function greet(name, greeting = "Hello") {
+
−function greet(name) {
− console.log("Hello " + name)
− return true
+function greet(name, greeting = "Hello") {
+ console.log(greeting + ", " + name + "!")
−}
−const version = "1.0.0"

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Frequently Asked Questions

How does text diff checking work?

Diff checking compares two text blocks line by line, marking added lines in green and removed lines in red.