Free Video Scene Detector
Detect scene changes on-device and auto-split at each cut. No upload.
Automatically find scene changes in long videos with on-device AI. Each cut becomes a separate clip, so you can trim, delete and rearrange shots in the timeline. Your video never leaves your device. No sign-up, no watermark.
- No upload
- No watermark
- On-device detection
- Adjustable sensitivity
- Editable splits
- MP4 export
How do I auto-split a video by scene for free?
Import the clip into the editor above, open the AI tab and press Detect Scenes. Frame-difference analysis finds the cuts on your device and turns each scene into a clip on the timeline. Trim or delete shots, then export an MP4. Nothing is uploaded, and the export has no watermark.
- Price
- Free, no watermark
- Account required
- No
- Video uploaded to a server
- No, detection and rendering run locally
- Detection method
- Frame-difference on-device
- Sensitivity
- Adjustable
- Output
- Splits as independent timeline clips
- Combine with silence removal
- Yes
- Export
- MP4
- File size limit
- 1 GB per file
- Best browsers
- Chrome and Edge on desktop
- AI shot labeling
- Not included
- Cloud stock library
- Not included
What is the ToolDeck video scene detector?
ToolDeck Video Scene Detector is a free browser tool that finds scene changes in a video and splits the clip at each cut. It analyses frames locally with a frame-difference algorithm, so nothing is uploaded. Each detected scene becomes an independent clip on the timeline that you can trim, delete or reorder, then export as an H.264 MP4. No account and no watermark.
It is built for highlight reels, interviews, montage rough cuts, travel B-roll selection and removing unusable takes. It finds cuts, not meaning — there is no AI shot classification, so it will not label shots as “close-up” or “wide”. Hard cuts detect best; fades and dissolves may need manual adjustment.
How to auto-split a video in 3 steps
- 1
Import a long clip and press Detect Scenes
Drop the video, open the AI tab and press Detect Scenes. Analysis runs on your device.
- 2
Review the splits
Each scene appears as a clip. Keep, trim or delete shots. Adjust sensitivity if too many or too few splits were found.
- 3
Export or keep editing
Render the remaining shots as an MP4, or continue adding captions, music and transitions.
Scene detection features, free
Auto split at scene changes
Frame-difference analysis finds hard cuts and splits the clip at each detected scene boundary.
Runs entirely on your device
Detection happens in your browser. The video is not uploaded to a server.
Splits become independent clips
Each detected scene becomes a separate clip on the timeline. Trim, delete or reorder shots individually.
Sensitivity control
Adjust the threshold to catch more soft cuts or only hard cuts, depending on the footage.
Combine with silence removal
For talking-head footage, detect scenes and then cut silent gaps in the resulting clips.
Beat markers on separate workflow
Use beat detection alongside scene splits when editing to music.
Trim each split clip
Drag clip edges to tighten each shot after detection.
Export MP4 or build a highlight reel
Delete unusable takes and export the remaining shots as an MP4, or continue editing into a highlight reel.
What you can do with auto scene splitting
Highlight reels from raw footage
Split a long shoot at every cut, delete weak takes and export a tight highlight reel.
Splitting interviews into answers
Detect scene changes between answers or camera angles and keep the best responses.
Building a montage from a long shoot
Turn a single long recording into individual shots you can rearrange into a montage.
Selecting B-roll from travel footage
Split travel footage into shots and pick the strongest B-roll for a story.
Removing unusable takes
Quickly isolate and delete blown takes, camera adjustments and accidental recordings.
Automating rough cuts
Use scene detection as a first pass, then trim and refine on the timeline.
What scene detection does well, and where it is limited
Detection is a frame-difference algorithm, not a semantic AI. Check this table before relying on it for a large project.
| Project type | Result | Notes |
|---|---|---|
| Hard cuts | Detected well | Clear cuts between shots are the strongest case. |
| Fades and dissolves | Sometimes missed | Gradual transitions may not trigger a split; adjust sensitivity or split manually. |
| Very long videos | Split into parts | Process long recordings in sections to stay within browser memory. |
| Fast motion with no cut | False positives possible | Rapid movement can look like a scene change. Review the splits. |
| AI shot classification | Not included | The tool detects cuts but does not label shots (e.g. “close-up” or “wide”). |
| 4K source footage | Needs a strong PC | Decoding 4K for analysis is memory-intensive. Consider proxy files. |
Tips for cleaner scene splits
Start with default sensitivity
Run detection once at the default threshold, then raise or lower it if you get too many or too few splits.
Review before deleting
Scene detection can miss soft transitions. Skim the splits before removing takes.
Use with silence removal for interviews
After splitting, cut silent gaps in each answer to keep interviews tight.
Trim big files first
If a recording is very long, trim the usable section before running scene detection.
ToolDeck vs cloud scene detectors
Cloud tools upload your video for analysis. ToolDeck runs detection in your browser, so files stay on your device and exports have no watermark.
| Feature | ToolDeck | Cloud scene detectors |
|---|---|---|
| Your video is uploaded to a server | Never | Usually yes |
| Watermark on export | None | Varies by plan |
| Sign-up needed | Not required | Often |
| Scene detection runs on-device | Yes | Usually cloud |
| Splits become editable clips | Yes | Varies |
| Sensitivity control | Yes | Varies |
| Combine with silence removal | Yes | Rare |
| AI shot labeling and classification | No | Some cloud tools |
| Cloud stock library | No | Yes |
General comparison. Products differ and features change.
Use footage you have the right to edit
Only edit and publish footage you own or are licensed to use. Using someone else’s work without permission can infringe copyright and get videos blocked.
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Beat Sync Video Editor
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Auto Caption Generator
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Video Speed Changer
Speed up or slow down clips.
Video Scene Detector
You are hereAuto-split at scene changes.
Your video never leaves your device
There is no upload step and no account. Scene detection and rendering run in your browser tab. To verify, open your browser developer tools, go to the Network tab, then run detection and export — you will not see file uploads. Read how we keep it private.