Text Diff Checker — Compare Two Texts
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Overview
Text Diff Checker is a lightweight, offline tool for comparing two pieces of text or code side by side. It instantly highlights the differences — showing which lines were added, removed, or changed — in a clean, retro-terminal-style interface.
Paste two blocks of text, click Compare, and the tool will display a clear diff view using color-coded highlights:
Red (-) for deleted or modified lines
Green (+) for newly added lines
You can swap, clear, or copy results with a single click.
Everything happens locally in your browser — no internet connection, no file uploads, and no third-party access.
Key features
Instantly compare two texts or code snippets.
Highlight added and removed lines in real time.
Copy or clear results with one click.
Simple, fast, privacy-first design.
Works fully offline and requires no setup.
Privacy & safety
No network access, no external API calls.
100% local processing within the popup.
No data tracking, storage, or analytics.
CSP-compliant and MV3-ready.
Perfect for developers, writers, or anyone who frequently reviews text changes and needs a quick, offline diff tool right inside Chrome.
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