...What it does:
Changes video FPS via FFmpeg.
Keeps or re‑encodes audio if requested.
No effects, no content edits.
Writes results to a separate output folder by default.
Also doubles as a fast video compressor: keep the original FPS and raise compression (e.g., higher CRF or lower bitrate) to reduce file size.
Important:
The program is intended for users who understand what FPS conversion does.