Codeground AI change tools

Diff & Patch Generator

Compare two text/code blocks and generate a clean unified patch instantly. Useful for PR snippets, release notes and quick code reviews.

Patch settings

Context lines

Ignore whitespaceIgnore case

6 changed lines

+3 additions

-3 deletions

Original

Updated

Unified patch output

--- a/old.txt
+++ b/new.txt
@@ -1,6 +1,6 @@
-function sum(a, b) {
-  return a + b;
+function sum(a, b, c = 0) {
+  return a + b + c;
 }
 
-console.log(sum(2, 3));
+console.log(sum(2, 3, 4));

How to use Diff & Patch

Paste your original and updated content, set context lines, then click Generate patch. You can copy or download the resulting unified diff and apply it in git workflows or code reviews.

Power tips

Set file names first to generate cleaner patch headers for teammates.
Enable “Ignore whitespace” to focus on semantic line changes.
Use “Swap sides” to compare quickly when inputs are pasted in reverse.
Use “Reverse patch” when you need rollback-style output.