Online Diff Tool
Compare text, code, JSON and other content side by side with an easy online diff checker.
Paste the original content on the left and the updated version on the right.
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Frequently Asked Questions
What is an online diff tool?
An online diff tool helps you compare two versions of text or code and quickly see what was added, removed, or changed.
What can I compare with this tool?
You can compare plain text, JSON, HTML, CSS, JavaScript, Python, markdown, configuration files, and other code snippets.
Does this diff checker work in the browser?
Yes, it works directly in your browser, so users can compare content instantly without installing extra software.
Can I compare JSON or code changes?
Yes, this tool is suitable for developers, writers, and general users who want to compare structured content or code side by side.
Is this online diff tool free to use?
Yes, it is completely free to use on your SmartTools website.