Split large media files into upload-ready chunks on macOS
MediaSeg is a local macOS utility that splits large media files into upload-ready chunks for practical, size-limited workflows. It was produced and directed with full AI assistance, and shipped in 2 days from idea to public release. Originally created to streamline long-recording upload prep, MediaSeg is useful for NotebookLM and other size-limited upload destinations. MOV is now officially supported, with M4A, MP3, and WAV available as experimental support.
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