Cut 30-minute footage into Reels, Shorts and ads
An AI video editor that watches the whole recording, finds the moments worth posting, and builds the edit on a real timeline — captions, keyframes, text and one-click object tracking.
What you can edit
Cut a 30-minute podcast, stream, webinar or interview into Reels, Shorts and TikToks in the video editor
Pin a label, logo or blur to a moving subject and let it follow, frame by frame, in the timeline editor
Add animated captions and CTA text tracks that stay synced across cuts in the video editor
Drop viral sounds onto the timeline and pair them with generated voiceovers from AI audio
Cut together generated clips from Seedance 2.0
Export the same edit at 9:16, 1:1 and 16:9 for every platform straight to MP4
Polish and export ads created with Ad Remix
Frequently asked questions
What is Planegraph's video editor?+
A multi-track timeline that runs entirely in your browser — no download required. You layer video, images, audio and text tracks, sync them, and export finished MP4. What makes it different is that it is built for long source footage: drop in a 30-minute recording and the editor already knows what is in it.
Can it turn a long video into short clips?+
Yes — that is what it is built for. The editor understands what is in your footage, so you can ask for the moments worth posting and get them cut onto the timeline as Reels, Shorts, TikToks or ads, ready for you to change.
How does one-click object tracking work?+
Name the thing you want followed — a person, a product, a face — and the editor finds it frame by frame and follows it through the shot. The result lands on the timeline as keyframes, so a caption, label, logo or blur rides along with the subject and stays editable afterwards. Tracking stops at a camera cut, where the subject may no longer be on screen.
How long can my source video be?+
Thirty minutes comfortably, and the timeline itself runs to an hour. A half-hour recording is ready to work with within a few minutes of adding it. The practical ceiling is file size: a source needs to come in under 500MB.
Does the video editor have an AI agent?+
Yes. Describe the change in plain text — "cut the dead air, add captions, drop the logo in the corner" — and it performs the multi-step edit on the timeline for you. Because it understands the footage, "cut to the part where she opens the box" is an instruction it can act on.
Can I still edit everything by hand?+
Yes, and most people do for the last ten percent. Every cut, caption, keyframe, text overlay and track the assistant makes is an ordinary object on the timeline — drag it, retime it, restyle it, delete it. Nothing is baked in, and nothing needs regenerating to change.
Is the online video editor free?+
Yes. The timeline editor is free to use in the browser, and you keep commercial usage rights to what you export. Paid plans add monthly generation credits for AI clips, voices and effects.
Can I add captions, trending audios and greenscreens?+
Yes. The video editor includes captions and text tracks, a library of trending audios you can drop onto the timeline, and popular greenscreen clips you can overlay on your footage.
What formats and resolutions can I export?+
You can export MP4 at 9:16, 1:1 and 16:9 up to 1080×1920, so the same edit is ready for TikTok, Reels, Shorts and YouTube.
Do I need editing experience?+
No. Describe what you want cut and the assistant builds it on the timeline; the full editing tools are there for when you want to take over. Dragging, trimming and exporting are the only three things you need to know to finish a piece.