FeaturesEdit, finish & record

PRODUCE

Real MP4 chapters, YouTube chapter lists and caption files.

Markers are seeded from your storyboard scenes and editable on the ruler. They export as chapters players understand, as a chapter list for the YouTube description, and your captions export as VTT — all timed to the final cut, including speed changes.

MP4 chaptersYouTube listVTT exportSnapping
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What it does

The detail that makes it work.

Embedded chapters

Muxed into the MP4 after the render, stream-copied, so chaptering never re-encodes your video.

Snap and step

Playhead and marker snapping, J/K/L shuttle, Home/End and frame stepping — the editing basics done right.

Split anywhere

Cmd+K splits the selection or every clip under the playhead; Shift+A selects everything to the right.

Learn CourseSmith

Watch the short tutorial.

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More in edit, finish & record

Pairs well with these.

Video editorDescribe an edit in words, edit the video by editing its text, cut any range — on a real multi-track timeline.AI editChange the video in plain words — transitions, animations, zooms, filters, speed, titles and shapes.Ranges & selectionsIn and out points, ripple delete, keep-only, group moves, trims and a menu on every clip.RecordingMulti-source recording — screen, camera, or both, with advanced options.AI magicTurn a rough recorded take into a polished one: AI tidies the transcript, you review it, and it is spoken again in the voice you pick.Rendered from your sourceFormulas, code and diagrams are drawn from your source in code, so the same scene renders the same frames every time.Transitions, keyframes & speed rampsCut transitions, position/scale/rotation/opacity keyframes and variable speed — shared by the preview and the render.Auto zoom & cursor from your clicksThe Cutaway extension logs pointer moves and clicks while you record; the editor turns them into zooms, click rings and a clean synthetic cursor.Music, ducking & loudnessA music library and AI composer inside the editor, automatic ducking under speech, and broadcast loudness on export.Masks, chroma key & filtersEllipse, rounded and inset masks with feathering; a green/blue-screen keyer; colour filters — all rendered identically in the MP4.Named versions & restoreWhole-timeline snapshots with a readable diff, taken by you or automatically before every export and re-prep.Edit one scene, re-voice one sceneRe-opening a changed lecture in Studio re-synthesises only the scenes whose narration changed and merges your timeline instead of clearing it.

Build a course with chapters, markers & vtt.

It’s one part of a tool that carries your source all the way to a polished, finished video.

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