Compare Code
Online
A free diff tool for developers. Compare source code files, find diffs, added functions, and removed snippets easily.
Next-generation algorithms for character-by-character comparison.
Compare Source Code Online (Diff)
For developers: diff source code files to see bugs, changes, and missing brackets.
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How to Diff Code?
We combined powerful analysis algorithms with an intuitive interface for your productivity.
Paste or Upload Snippets
Directly copy classes or logic from your IDE or upload the script files.
Ignore Whitespaces
Tick off the "Ignore spaces" setting to avoid noisy indentation adjustments.
Review File Commits
A handy way to review different iterations before executing a merge.
Your Online Web Diff Checker
We combined powerful analysis algorithms with an intuitive interface for your productivity.
No Git Required
Compare scripts on the fly without setting up local repos or command line tools.
Monospaced Output
Results stay strictly monospaced ensuring code structure remains understandable.
Language Agnostic
Whether it's Python, HTML, Go, or configuration JSON, it processes flawlessly.
Frequently Asked Questions about Code Comparison
Which programming languages are supported?
We are fundamentally language-agnostic. Because it runs as a text byte comparison, you can effectively diff PHP functions, JS components, Python modules, HTML templates, CSS style sheets, or even JSON config files.
Are spaces ignored when comparing code?
Yes, navigating the online code diff tool reveals an "Ignore spaces" switch. Turning this on will exclude trivial changes caused strictly by developers modifying tabs, spacing, or automatic linters running in IDEs.
Can I compare files directly?
Definitely. To check diffs rapidly, you can drop source code files directly onto the browser window (e.g. `main.js` vs `main_v2.js`), or manually paste snippets right from your IDE directly into the form areas without saving files locally.