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File Tasks
Number Sequence
The Number Sequence task adds an incrementing number to each filename. Numbers are assigned in the order files appear in the file list, which is controlled by the Sort By selector in the left panel.
Controls
| Control | Description |
|---|---|
| Start # | The first number in the sequence (e.g., 1, 0, 100) |
| Padding | How many digits the number occupies, zero-padded (e.g., 4 → 0001, 0042) |
| Separator | A character placed between the number and the rest of the filename (e.g., _, -, ) |
| @ Start / @ End | Whether the number is added before or after the existing filename |
How padding works
Padding ensures all numbers occupy the same width. If your sequence goes from 1 to 500, set padding to 3 so numbers appear as 001, 002, ..., 500. This keeps filenames sorted correctly in any file manager.
Examples
10 files, Start: 1, Padding: 3, Separator: _, Position: @ Start:
| Old name | New name |
|---|---|
sunset.jpg | 001_sunset.jpg |
beach.jpg | 002_beach.jpg |
mountains.jpg | 003_mountains.jpg |
Same settings but Position: @ End:
| Old name | New name |
|---|---|
sunset.jpg | sunset_001.jpg |
beach.jpg | beach_002.jpg |
Tips
- Sort your files in the left panel first, then add Number Sequence — the numbers follow the current sort order
- Use padding equal to the number of digits in your largest number to keep filenames sortable
- Set Separator to an empty string to attach the number directly to the filename without any gap
- Combine with Clear All first to produce purely numeric filenames like
001.jpg,002.jpg