
MediaSeg
Split large media files into upload-ready chunks on macOS
141 followers
Split large media files into upload-ready chunks on macOS
141 followers
MediaSeg is a local macOS utility that splits large media files into upload-ready chunks for practical, size-limited workflows. It is useful for NotebookLM-style uploads and similar destinations, and now officially supports MP4, WEBM, and MOV, with M4A, MP3, and WAV available as experimental support. Recent updates also added theme and language support.








MediaSeg
MediaSeg now officially supports MOV, with M4A, MP3, and WAV available as experimental support.
Release builds also bundle FFmpeg / FFprobe, which makes the macOS app easier to use out of the box.
MediaSeg
Update ver.1.2.0:
UI refinement (GUI)
Language support (EN, JP, VN)
Additional Themes (Dark, Light, Neon)
Honestly the kind of thing where the whole pitch is just "yeah, I needed this and got tired of waiting." 😅 Hitting upload caps on long recordings is such a quiet, recurring papercut. And local + no re-encode is exactly the right call.
Slick. Congrats on shipping it 👏
MediaSeg
@oleg_tsizdyn Yes. MP4 splitting stays on ffmpeg stream copy, so the split step does not re-encode the media. WEBM is converted to MP4 first, then split locally.
This is one of those tools you don't think about until you hit 2gb uplload limit and waste time compressing everything.
MediaSeg
@aleksander_brousseau Exactly — this is meant for the “get past the upload cap” workflow, without having to craft a one-off ffmpeg command every time.
MediaSeg
@anusuya_bhuyan Thank you!