WORK ORDER Nº 0008 · BAY 8

File Renamer

File Renamer renames many audio and video files at once with a pattern such as {date:yyyyMMdd}_{seq:3}_{orig}. You see every new name before anything happens, name clashes are flagged, nothing is ever overwritten, and the last batch can be undone.

What it does

Drop your audio and video files in the list, write a name pattern and check the New name column. Only when you confirm are the files renamed, and an existing file is never overwritten.

  • Placeholders. {date}, {time}, the file's own modification date {mdate} and {mtime}, a counter {seq}, random text {rand}, environment variables {env} and the original name {orig}. Dates take formats and shifts such as {date+1d:yyyyMMdd}.
  • Preview first. Every new name is shown next to the old one before anything happens. Problems turn the row red and block the rename until you fix them.
  • Safe by design. A clash with an existing file or with another name in the batch is flagged and checked again at the moment of renaming. Swaps and case-only changes work. Characters not allowed on Windows are replaced and reserved names refused, so names work on every system.
  • Undo. The last batch can be undone in one click, as long as the files have not been changed since.
  • Counter. The counter follows the order of the list (sort by name or date) and starts where you choose, with any step.
  • Lists. Drop files or whole folders (subfolders optional; only audio and video when scanning folders).

Where it helps

For anyone who files audio every day: recordings named by the recorder, jingles and promos to put in order, a library to bring to one naming scheme, files for a playout that expects a fixed pattern. Names are computed from a pattern instead of typed by hand.

Screenshots

Pattern, placeholders and the list with old and new names
Pattern, placeholders and the list with old and new names
A name clash flagged in red, in the light theme
A name clash flagged in red, in the light theme
Confirmation with the first renames before anything happens
Confirmation with the first renames before anything happens

Quick start

  1. Drop files or a folder on the window.
  2. Write the pattern, for example {date:yyyyMMdd}_{seq:3}_{orig}, and check the New name column.
  3. Press Rename, confirm, and undo the batch if needed.

First launch

The apps are free and not code-signed, so your system shows a warning the first time.

Windows
SmartScreen may say “Windows protected your PC”: click More info, then Run anyway.
macOS
Drag the app to Applications. If macOS blocks it, open System Settings → Privacy & Security and press Open Anyway.
Linux
Make the AppImage executable (chmod +x) and run it. Some distributions also need libfuse2.
Check the file
Compare the SHA-256 of what you downloaded with the one in the specs.
shasum -a 256 <file> · Get-FileHash <file> -Algorithm SHA256

Changelog

  • 26.10.1 · 2026-10-01 · First public release.