Text Tools
Code diff tool
Compare two versions of code and see every change highlighted. Monospace view preserves formatting. Runs locally in your browser — your code is never uploaded.
100% secure and local.Your text is compared in your browser and is not uploaded.
Frequently asked questions
- How do I compare two versions of code?
- Paste your original code in the left panel and your modified code in the right panel. The tool instantly highlights every addition, deletion, and change. The monospace view preserves code formatting.
- Does this work with any programming language?
- Yes. The diff tool compares plain text, so it works with any programming language including JavaScript, Python, Java, C++, HTML, CSS, and more.
- Is my source code uploaded to a server?
- No. All comparison happens locally in your browser. Your source code is never sent to any server, making it safe for proprietary or confidential code.