Bulk File Timestamp Changer
Batch change file modification, access, and creation timestamps. Relative offsets, absolute dates, EXIF-based, filename-parse, and 10+ extras. 100% private.
About Bulk File Timestamp Changer
Batch change file modification, access, and creation timestamps. Relative offsets, absolute dates, EXIF-based, filename-parse, and 10+ extras. 100% private. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
Can browser-based tools really change file timestamps?
Yes, with limitations. The File System Access API (Chrome/Edge) supports File SystemFileHandle.createWritable() with optional `lastModified` on the Blob. This tool generates a script + a downloadable ZIP with modified files for users without File System Access API support.
What extras does this tool have?
Extras: (1) Set mtime/atime/ctime to absolute date, (2) Offset by relative time (+/- days/hours/min), (3) Set to file's EXIF DateTimeOriginal, (4) Parse date from filename (configurable regex), (5) Copy from another file's mtime, (6) Sequence mode (increment by N minutes per file), (7) Random within range, (8) Set to current time (touch), (9) Batch preview before apply, (10) CSV export of before/after, (11) Export PowerShell/Bash touch script, (12) Download modified files as ZIP, (13) Sort files by name/size/exif, (14) Drag-drop reordering for sequence mode.
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