⏱️ Batch File Timestamp Modifier

Processed entirely in your browser. Modify file Modified Times with fixed, offset, random, or incremental modes, then export as a ZIP.

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Drag & Drop files here

Supports batch selection. Processing is absolutely secure—data never leaves your browser.

Target Property

* Note: Due to browser sandbox security, the frontend JSZip engine currently only supports modifying the Modified Time.

Sort by original time before processing

Modification Mode

Set Target Time:

Offset Value (Positive to add, Negative to subtract):

Start Range: End Range:

Base Start Time: Random Increment Interval (Seconds):

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100% local processing. Batch modify file modification times by offset, range, or increments, and export as a ZIP.

🛡️ Privacy Guarantee: The core processing logic executes entirely locally in your browser. We never log, collect, or upload your private data.