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Online Text Diff & Comparison Tool

Compare two texts side by side. See additions and deletions highlighted instantly.

Original Text
Paste your original/old text here
New Text
Paste your new/modified text here
Comparison Result
Enter text in both fields to see the comparison

How the Text Diff Tool Works

Our text diff tool uses a word-level comparison algorithm to identify differences between two pieces of text. Additions appear in green, deletions in red with strikethrough, making it easy to spot changes at a glance.

Perfect for Code Review

Compare code snippets, configuration files, or any text documents. The monospace font ensures proper alignment, and the color-coded output makes reviewing changes quick and intuitive.

Local processing

Comparison does not upload the text to a SimpleTaskTools endpoint. Redact active secrets and use a controlled browser profile when comparing confidential material.

Frequently Asked Questions

Common questions about Text Diff Tool.

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What this tool does

Compare two text versions to locate edits.

How to use it

Paste the original and revised text in their respective panels and inspect additions and removals.

Worked example

Comparing cat with cats reveals an added s; display grouping depends on the selected comparison mode.

Limitations and checks

A text difference is not a semantic code review. Whitespace options can hide meaningful indentation or spacing changes.

How your data is processed

The operation runs in your browser. Copy and download actions use your device. Where Save work is offered, a local copy is stored; eligible work can sync only under your enabled account settings. See Privacy for site analytics and storage details.

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