Does this text diff tool process my documents locally or upload them to a server?

Text diff calculations, character-level comparison, and patch generation execute 100% locally in your browser memory. Your text, source code files, logs, and sensitive data are never uploaded to any remote server or stored in external databases.

What views and comparison options are supported?

This tool provides both Side-by-Side and Unified diff views with line numbers, intra-line character/word level change highlighting, whitespace controls (ignore whitespace, trim spaces, ignore blank lines), case sensitivity toggles, and JSON auto-formatting before comparison.

Can I upload files directly or compare code files?

Yes. You can drag and drop or select plain text (.txt), Markdown (.md), JSON (.json), CSV (.csv), or common source code files (.js, .ts, .py, .html, .css, .log, etc.). Files are read locally as UTF-8 text in your browser RAM.

How do I copy or export the comparison result?

You can copy the raw unified diff patch to your clipboard, copy the modified text, or download the patch as a standard .diff / .patch file ready for use in Git or software patch utilities.

How does the tool handle large files and long lines?

The diff engine uses optimized Myers line comparison and includes safe performance limits. For lines exceeding 2,000 characters, character-level diffing gracefully degrades to line-level highlighting to prevent browser UI freezing.

JavaScript is Required

Zapixal is a client-side application. It requires JavaScript to process images securely in your browser without uploading them to a server. Please enable JavaScript to use this tool.

Client-Side

Diff Viewer & Text Comparator

Name: Zapixal - Diff Viewer & Text Comparator
Availability: InStock
Author: Zapixal

Compare text or code side-by-side or unified. Character-level diff highlighting, whitespace filters, and patch export locally in your browser.

Text Suite2 Tools

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