We've updated — New tools, dark mode, and an improved experience. 🎉

Diff Viewer

Compare two texts and view differences. Side-by-side or unified diff view.

Share:

Compare two text versions

Spot insertions and deletions between drafts, configs, or API responses. “Text diff” intent wants immediacy—pair with JSON formatter when both inputs are minified.

How Diff Viewer Works

Paste or enter your input in the field above. Most tools update in real time. Click the Copy button to copy the output. All processing happens in your browser—your data never leaves your device unless the tool explicitly uses a server feature (such as URL shortening or bcrypt hashing).

This tool is part of the Viewers category. Check similar tools below. All everytools are free, no signup required. Works on desktop and mobile.

Diff Viewer – Free Online Tool Screenshot
Diff Viewer interface preview

Common Use Cases

  • Review CMS export changes before import
  • Compare staging vs production JSON responses
  • Teach students line-based change tracking
  • Support agents contrasting before/after error messages

You might also like

Other Viewers Tools

Frequently Asked Questions

Diff vs git diff?
Git understands file history and merges. This tool is for ad-hoc snippets pasted from tickets, email, or logs without a repo context.
Large payloads?
Very large pastes can slow the browser. Consider comparing hashed sections or splitting by file for huge configs.