About The Text Compare

This free online Text Compare tool works as a quick diff checker for comparing two pasted text versions side by side. It helps you find added, removed, and changed content in documents, code snippets, logs, API responses, configuration files, and edited copy.

By default, the tool runs a fast word-level comparison so you can paste two versions and click Compare without tuning settings. If the text is identical, it shows a simple confirmation message instead of filling the page with unnecessary result rows.

How to Compare Text Online

1. Paste the first version into Original text.
2. Paste the revised version into Updated text.
3. Click Compare to view differences, or use Swap if the two versions are reversed.
4. Open Show more options when you need line mode, whitespace handling, case handling, compact view, or diff navigation.
5. Use Download Diff when you need a plain-text diff record for tickets, QA notes, or review comments.

Choosing Options Correctly

Show more options:
- Leave it OFF for quick default compares.
- Turn it ON when you need control over comparison behavior.

Diff mode:
- Line mode is better for config files, logs, and source diffs.
- Word mode is better for prose, docs, and short copy edits.

Ignore case:
- Turn ON when capitalization changes are not meaningful.
- Keep OFF when case differences are functionally important.

Ignore whitespace:
- Turn ON to suppress formatting-only changes.
- Keep OFF when spacing/tab changes are relevant.

Wrap lines and Compact view:
- Use wrap for long lines in narrow screens.
- Use compact view for dense review sessions with many edits.

Prev Diff and Next Diff:
- Use these buttons to jump between changes after a comparison.
- Use Alt+P and Alt+N when keyboard navigation is faster.

Common Use Cases

• Review document revisions before publishing or sending for approval.
• Compare API payloads, JSON snippets, XML fragments, or generated text output.
• Check configuration, environment, or log changes during debugging.
• Verify copy edits, policy text, release notes, and support templates.
• Create a downloadable diff summary for issue trackers or QA handoff notes.

Quick FAQ

Why do I see too many differences?
Use ignore-whitespace or ignore-case options when formatting, indentation, or capitalization changes are not meaningful.

When should I use line mode instead of word mode?
Line mode is better for config files, logs, and code blocks. Word mode is better for prose and short text edits.

What happens if both text boxes are identical?
The tool reports that the text is identical and there are no detailed changes to review.

Is my text uploaded?
No. Text comparison is designed to run in the browser.