Free Tool
The complete browser-based video workflow for content creators
Replace backgrounds, upscale, edit, and export — no subscriptions, no uploads, free forever.
The problem
Content creation requires juggling multiple paid tools: one for editing, one for upscaling, one for export. Subscriptions add up quickly and cloud tools upload your raw footage.
The NSS solution
NSS provides a complete in-browser video pipeline: composite a replacement background as a layer, upscale with Lanczos, edit with the full Video Editor (backgrounds, grading, text, trim), and export. All on your device, all free.
How to use it
- 1
End-to-end video production
Record → composite background → edit (colour grade, text, trim) → export MP4. Complete pipeline in one browser tab.
- 2
Upscale legacy footage
Use the Video Upscaler to bring older 360p or 480p clips up to 960p for social media without re-recording.
- 3
Reaction cutouts
Remove backgrounds from screenshots and stills for reactions, profile avatars, and Notion embeds.
- 4
Thumbnail headshots
Remove the background from your headshot and drop the cutout onto a bold thumbnail background.
Step-by-step guide
- 1
Composite your video background
Go to /video-editor. Drop your clip and add a background layer behind it.
- 2
Edit
Set the background, colour grade, and add text overlays.
- 3
Trim and export
Use the timeline trim handles to cut to the perfect length, then export as MP4 or WebM.
- 4
Upscale if needed
For low-resolution clips, use /video-upscale first for a 2× resolution boost before compositing.
Common questions
Is there a watermark on exported video?
No. Exports are clean with no watermark, attribution, or branding imposed by NSS.
What is the maximum video length?
Up to 5 minutes per clip in the editor. Upscaling works best on clips under 60 seconds.
Can I export the same clip in multiple formats?
Yes. In the Video Editor, you can export multiple times with different settings without re-processing.
Ready to try it?
No account. No subscription. No images uploaded to any server.
Open video editor free→