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● Files never leave your device Edit video on a timeline — in your browser
havenConverter includes a real multi-track timeline: drop in several videos, layer images and titles over them, lay music or voiceover on audio lanes, and trim, split, fade and reorder clips by dragging. Select a clip and move, resize, stretch or rotate it right on the preview — picture-in-picture and split-screen layouts take seconds. What you see in the preview is exactly what renders.
Everything happens in this browser tab on your own device — your video is never uploaded to a server, so even multi-gigabyte files stay private. When you’re done, export the whole timeline to MP4, MOV, MKV or WebM at 480–1080p, encoded on your device.
How to
- Open the timeline. Open havenConverter, switch to “Timeline editor”, and drop in videos, images or audio.
- Arrange the tracks. Drag clips along or between tracks, trim their edges, split at the playhead, and add video/audio tracks as needed.
- Layer titles and music. Add a title with T+, style and rotate it on the preview; put music on an audio lane and set its volume and fades.
- Export. Pick resolution, frame rate and format, then export — the file is composited and encoded locally.
Frequently asked questions
- Is this a real timeline editor?
- Yes — multiple video and audio tracks, drag/trim/split, per-clip transforms (move, resize, stretch, rotate), opacity and fades, titles, and a live preview that matches the export exactly.
- Do my files get uploaded?
- No. The timeline is composited and encoded entirely in your browser — your media never leaves your device.
- Which formats can I export?
- MP4 (H.264), MOV, MKV, and WebM (VP9), at 480p, 720p or 1080p with your chosen frame rate.
- Can I undo a mistake?
- Yes — full undo/redo (⌘Z / ⇧⌘Z), plus keyboard shortcuts for play, split and delete.
Guides
Vertical 9:16 video for Reels, Shorts & TikTokAdd music to a video — free, no watermarkMerge video clips — privately, in your browserEdit video without installing anything
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