Text Diff Tool

What this tool does

The Text Diff Tool compares two text blocks and highlights additions and removals side by side. It helps you see exactly what changed in a document, configuration file, or message draft without using a full diff tool or version control client.

When to use this tool

Use it when reviewing edits, validating content updates, or checking changes in copy before publishing. It is also helpful after cleaning text with Whitespace Cleaner or when comparing pattern changes from Regex Tester.

How it works

The tool tokenizes both inputs, computes the differences, and renders the output with clear visual markers for removed and added text. Options like trimming whitespace and ignoring case help you reduce noise when the edits are minor or formatting-only.

Example use case

You have two versions of a support response and need to confirm only a few sentences changed. Paste the original on the left and the updated version on the right, click Compare, and review the highlighted differences before sending the final reply to customers.

Use cases

• Review edits between two versions of copy.
• Compare config changes before deployment.
• Verify generated output against a source template.

Notes & limitations

The diff is best for text and small code snippets; very large documents may be slow in the browser. The tool does not preserve formatting like markdown rendering, so interpret results as plain text. Always review final content in its destination context.

This view compares text at a word level for readability, not at a full line-by-line version control granularity. If you need strict line diffs for code reviews, use a dedicated diff tool. For drafts and content edits, this tool prioritizes clarity over exact patch output.

If you see many tiny changes, try enabling the trim option to reduce noise from extra spaces. You can also split large documents into sections and compare them one at a time to keep the output readable.