Side-by-Side Diff Viewer

Compare text and code files side-by-side online. Visual split diff viewer with colored change highlights. Free developer comparison tool.

About this tool

Side-by-Side Diff Viewer compares two text or code files with split layout and clear highlighting of added, removed, and modified lines.

How to use

  1. Paste original text in the left panel and modified text in the right panel.
  2. View synchronized side-by-side comparison.
  3. Inspect highlighted deletions in red and additions in green.

FAQ

Can I compare source code files?

Yes, supports JavaScript, Python, HTML, CSS, JSON, and plain text.

Is my confidential code sent to a server?

No, diff computation is executed 100% locally on your machine.

What does Side-by-Side Diff Viewer do?

Side-by-Side Diff Viewer compares two text or code files with split layout and clear highlighting of added, removed, and modified lines.

How do I use Side-by-Side Diff Viewer?

Open the Side-by-Side Diff Viewer tool, then paste original text in the left panel and modified text in the right panel.

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