A single-file, fully local web app for ordering a folder of audio files by ear (and by eye).
Point it at a directory of sound effects or music stingers, audition each file, compare
their waveforms side by side, and drag them into your preferred order — small subtle
sounds first, grand triumphant finale last. Then save renamed copies with the sort order
baked into the filenames (01_whoosh.wav, 02_hit.wav, … or name_01.wav, or a full
rename like impact_01.wav).
Audition, compare, and reorder every sound in one view, then preview the numbered filenames before saving non-destructive copies.
Open index.html in a browser. No build step, no server, no dependencies, nothing
uploaded — everything runs locally.
- Chrome / Edge: full experience — pick a folder, then "Save to folder…" writes the renamed copies wherever you choose.
- Firefox / Safari: folder picking works; exports download as a ZIP instead.
- Waveform per file, drawn at true relative amplitude — loud files visibly tower over quiet ones, so you can compare sounds at a glance. Click a waveform to play from that spot.
- Loudness analysis (max RMS over a 400 ms window, dBFS) with color-coded chips, plus one-click starting sorts: quiet → loud (the "small to grand finale" order), duration, name, shuffle.
- Drag to reorder, with keyboard support (arrows to select, ⌥/⌘+arrows to move, Space to play/pause, Backspace to remove from the list).
- Play all auditions the whole sequence in order; a play-mode toggle picks what happens when a sound ends — auto-play the next, loop the current one, or stop.
- Per-sound volume: drag any loudness chip left or right to turn that sound down or up (double-click resets). Playback previews the change, the waveform rescales, and exports apply it — adjusted files are re-rendered as 24-bit WAV at their original sample rate, with a warning if the gain clips; untouched files are copied byte-for-byte.
- Flexible naming: number as prefix or suffix, custom separator, start number, digit padding, or replace every name with a new base name.
- AIFF support everywhere: Chrome and Firefox can't play or decode
.aif/.aiffnatively, so the app ships its own AIFF decoder (PCM includingsowt/twos, float32/64) — waveforms, loudness, gain, and playback (transcoded on the fly) all work. - Non-destructive: originals are never touched — exports are copies (folder or ZIP).