Private by design
Frames are decoded, enhanced and encoded locally. No video upload endpoint exists.
LOCAL PROCESSING. CREATIVE FREEDOM.
Free AI video upscaler
No watermark. No uploads.
Enhance video resolution online with on-device AI. Upscale 720p to 1080p or compatible 1080p clips to 4K. Free downloads; browser and GPU limits apply.
Video UpscalerWebGPU · WebCodecs
01Choose your video
◈ Your video stays on this device. Cookie-free usage counters never include your media or filename.
02Make it yours
Choose a video to unlock settings.
03Preview & export
2× AIA clearer view starts with your video.
Your actual before-and-after preview will appear here.
Experimental browser engine · Results depend on your source and GPU
FrameLift in numbers
- Page views
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- Videos upscaled
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Shared totals since counters launched. No tracking cookies or persistent visitor IDs. Page views are not unique visitors. Only completed video jobs count; previews, cancellations and images do not.
Loading usage totals…
Real frame-by-frame AI
WebSR runs Anime4K convolutional networks on your GPU, with weights chosen for your content.
Keep your soundtrack
Compatible audio is copied without re-encoding. Unsupported audio blocks processing before it starts.
Enhance video resolution online, with local processing
Upscale 720p to 1080p free
Choose a compatible MP4 or WebM, select the 1080p preset, and compare an AI preview before processing. A 1280 × 720 video becomes 1920 × 1080 without stretching the picture. Download the result without a watermark or account.
Read the 720p to 1080p guide →Can I convert 1080p to 4K online free?
A compatible 1920 × 1080 clip can be enlarged to 3840 × 2160 using the 4K preset when your GPU, memory and browser encoder support it. FrameLift performs one 2× AI pass. A 720p clip cannot reach 4K in one pass, and 8K output is not supported. Video limits are 512 MB, 10 minutes and 8-bit SDR.
Check browser and GPU compatibility →What does an AI video quality enhancer improve?
The Anime4K networks used by WebSR can make edges appear clearer, but extra pixels do not guarantee recovered detail. Compression blocks, halos and flicker may become more visible. Compare the preview and the finished video in motion. Compatible audio is preserved; unsupported audio blocks processing rather than being silently removed.
See how AI video upscaling works →Free downloads without uploading your video
Processing runs on your device. Our application does not upload selected videos or images. The browser downloads the website and selected model files; cookie-free counters record only page views and completed video jobs. For still pictures, use the separate free 2× image upscaler.
Open the AI image upscaler →