CHROME EXTENSION PRIVACY · NOVEMBER 4, 2026

Your CSV stays on your device.

The extension is free, works offline, and does not upload your files or comparison results.

01

Local file processing

Files are read only after you select or drop them. Parsing, matching, comparison, search, and CSV report generation run locally in a browser Worker. File contents, names, headers, matching keys, searches, and results are not sent to a server.

02

What is saved

Chrome local storage saves only trim whitespace, ignore letter case, numeric analysis enabled, number format, and rows per page. These settings are stored on this device, not in Chrome Sync. File contents, file names, field selections, results, and history are never saved by the extension.

Use Local preferences → Restore default preferences to reset these options. Chrome removes the extension's local storage when you uninstall it. New comparison clears the file session and keeps your preferences.

03

One permission

The storage permission supports local preferences. The extension does not request website access, browsing history, tabs reading, clipboard, downloads, or unlimited storage permissions. It does not inject scripts into websites or include analytics, advertising, remote code, or third-party trackers.

04

Files and downloaded reports

The active CSV session remains in memory while the tool is open. Cancel, New comparison, reloading, or closing the tool releases session references; browser memory reclamation is not an immediate physical wipe. Export CSV saves a report only after you click it. Your browser and operating system manage downloaded files.

05

Contact

binzh303@gmail.com. Email is handled by your and the recipient's email providers. The link does not attach files or send automatically. Use anonymized examples for support.

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