Free YouTube Shorts Editor
Edit 60-second vertical Shorts with AI captions. No upload, no watermark.
Edit YouTube Shorts in your browser with a 9:16 vertical canvas, on-device AI captions, silence removal and beat markers. Your clips are never uploaded. No sign-up, no watermark. Export a 1080×1920 MP4 ready for YouTube Studio.
- No upload
- No watermark
- 9:16 vertical
- AI captions
- 60s workflow
- 1080×1920 MP4
How do I edit a YouTube Short for free without a watermark?
Drop your clip into the editor above, set 9:16, trim to 60 seconds, generate AI captions on your device, and press Export. It runs in your browser, so nothing is uploaded, and the exported MP4 has no watermark.
- Price
- Free, no watermark
- Account required
- No
- Video uploaded to a server
- No, rendered in your browser
- Default ratio
- 9:16
- Length target
- Up to 60 seconds (YouTube Shorts limit)
- AI captions
- English speech, on-device
- Burn-in captions
- Yes
- Safe-zone aware text
- Yes
- Export
- 1080×1920 MP4, up to 60 fps
- File size limit
- 1 GB per file
- Best browsers
- Chrome and Edge on desktop
- Direct publish to YouTube
- No, export and upload manually
What is the ToolDeck YouTube Shorts editor?
ToolDeck YouTube Shorts Editor is a free browser tool for making 60-second vertical Shorts. It uses WebCodecs and WebAssembly to edit and render on your own device, so clips are never uploaded. It sets the canvas to 9:16, adds safe-zone-aware AI captions, removes silent gaps and exports H.264 MP4 at 1080×1920 up to 60 fps. No account and no watermark.
It is designed for cutting long videos into Shorts, gaming clips, cooking hacks, fitness tips, micro-lessons and product teasers. It does not include a stock music library and cannot upload directly to YouTube — you export the MP4 and upload it in YouTube Studio.
How to edit a YouTube Short in 3 steps
- 1
Import a clip and set 9:16
Drop a landscape or vertical clip. The canvas switches to 1080×1920; use blur fill for landscape sources.
- 2
Trim to 60 seconds and add AI captions
Cut to the Shorts length limit, remove silent gaps, and generate English captions placed inside the safe zone.
- 3
Export 1080×1920 MP4
Render an H.264 MP4 at up to 60 fps. Upload the file to YouTube Studio as a Short.
Shorts-specific features, free
9:16 vertical 1080×1920 canvas
The native Shorts format. Import vertical clips or convert landscape footage with a blurred fill background and keep the full frame visible.
AI captions tuned for Shorts safe zones
Transcribe English speech on your device and keep captions inside the area YouTube does not cover with the Shorts UI.
Silence removal for tight 60s pacing
Cut dead air automatically so the Short stays compact and watchable within YouTube’s Shorts length limit.
Beat markers on trending audio
Detect beats in your music track and snap cuts to markers for a rhythm-driven Short.
Speed ramps and freeze frame
Slow a moment down, speed a transition up, or freeze a frame on a key beat.
Text titles sized for the Shorts UI
Default title sizes and positions that stay readable above the Shorts progress bar and channel info.
Transitions and filters
Eight transitions and colour looks tuned for vertical social video.
MP4 export at 60 fps, YouTube-ready
Export H.264 MP4 at 1080×1920 and upload to YouTube Studio. No watermark, no upload from ToolDeck.
What you can make with this Shorts editor
Cutting long YouTube videos into Shorts
Pull the strongest 30–60 seconds from a long upload, reframe to 9:16 and add captions.
Gaming highlight Shorts
Cut a clutch moment, add a freeze frame and speed ramp, and export a vertical clip.
Cooking hack Shorts
Show one technique in under 60 seconds with fast cuts, captions and a music bed.
Fitness tip Shorts
Demonstrate one exercise with on-screen cues and a tight, silent-gap-free edit.
Educational micro-lessons
Explain one concept with captions so viewers can watch with sound off.
Product teaser Shorts
Tease a product with three quick shots, text overlays and a beat-synced cut.
What works well, and where Shorts editing is limited
Results depend on your browser, memory and graphics card. Check this table before a project.
| Project type | Result | Notes |
|---|---|---|
| Shorts under 60 seconds | Works well | The intended workflow. Fast export at 1080×1920. |
| Landscape to 9:16 conversion | Needs blur or crop | Use blurred background fill or crop; the full landscape frame cannot fit a vertical canvas without bars. |
| AI captions in languages other than English | Not supported yet | The speech model is English only. Import an SRT or VTT file in another language instead. |
| Beat detection on noisy audio | Less reliable | Clean music with a strong beat detects best. |
| Direct publish to YouTube | Not supported | Export the MP4 and upload through YouTube Studio. |
| 4K export for Shorts | Unnecessary | 1080×1920 is the standard Shorts resolution and exports faster. |
Tips for better Shorts
Front-load the hook
Put the most interesting second first. Shorts viewers decide quickly; captions help when sound is off.
Keep captions in the safe zone
Place text above the bottom UI and below the top edge. The editor’s caption presets account for this.
Use silence removal before captions
Cutting dead air first reduces caption cleanup and keeps the rhythm tight.
Export 1080p, not 4K
Shorts are vertical and watched on phones. 1080×1920 at 30 or 60 fps is enough and renders faster.
ToolDeck vs cloud Shorts editors
Cloud editors upload your clips and often add watermarks or limits on free plans. ToolDeck edits and renders in your browser, so files stay on your device.
| Feature | ToolDeck | Cloud Shorts editors |
|---|---|---|
| Your video is uploaded to a server | Never | Usually yes |
| Watermark on export | None | Varies by plan |
| Sign-up needed | Not required | Often |
| 9:16 vertical canvas by default | Yes | Yes |
| 60-second workflow built in | Yes | Varies |
| AI auto captions | Yes, English speech (on your device) | Often paid |
| Silence removal for tight pacing | Yes | Varies |
| Beat markers on trending audio | Yes | Varies |
| Direct publish to YouTube | No | Some editors offer it |
| Stock music and template library | No | Yes |
General comparison. Products differ and features change.
Use footage and music you have the right to use
Only edit and publish footage, music and images you own or are licensed to use. Using someone else’s work without permission can infringe copyright and get Shorts blocked or removed.
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YouTube Shorts Editor
You are hereEdit 60-second Shorts in 9:16.
Your clips never leave your device
There is no upload step and no account. Editing and rendering happen in your browser. AI captions use an open speech model downloaded once and run on your device. Read how we keep it private.