Video Up Scaler
Upscale video resolution using AI-powered WebGPU processing directly in your browser. Zero server costs, fully private.
How to Upscale a Video
Upload Your Video
Click the upload area or drag and drop an MP4 or WebM video file. The tool will display the original resolution and duration.
Choose Scale Factor
Select the desired upscaling factor: 1.5x, 2x, 3x, or 4x. Higher factors produce larger output but take longer to process.
Start Upscaling
Click the Start Upscaling button. The tool uses your GPU via WebGPU to upscale each frame. A progress bar shows the current status.
Download the Result
Once processing is complete, preview the upscaled video directly in the browser and download the MP4 file.
Use Cases
Enhance Old Footage
"Upscale low-resolution family videos or archival footage to modern HD or 4K resolution for better viewing on large screens."
Improve Social Media Content
"Upscale videos recorded on older phones to higher resolution before posting on YouTube, Instagram, or TikTok."
Game Recording Enhancement
"Upscale gameplay recordings captured at lower resolutions to create higher quality content for streaming or sharing."
Frequently Asked Questions
?How does the video upscaler work?
The tool uses WebCodecs to decode your video frame by frame, then processes each frame through a WebGPU compute shader that performs high-quality bilinear interpolation upscaling. The upscaled frames are re-encoded into an MP4 file using WebCodecs and mp4-muxer.
?What browsers are supported?
You need a browser that supports both WebGPU and WebCodecs. Currently, Google Chrome 113+ and Microsoft Edge 113+ have full support. Firefox and Safari support is coming soon.
?What video formats are supported?
The tool accepts MP4 (H.264) and WebM video files as input. The output is always an MP4 file encoded with H.264 for maximum compatibility.
?How long does upscaling take?
Processing time depends on your GPU power, video duration, resolution, and the chosen scale factor. A 30-second 720p video at 2x typically takes 1-3 minutes on a modern GPU.
?Is there a file size or duration limit?
There is no hard limit, but very large videos may run into browser memory constraints. For best results, keep videos under 500MB and 5 minutes. You can trim longer videos first.
?What type of upscaling is used?
The current version uses GPU-accelerated bilinear interpolation via a WebGPU compute shader. This produces smooth, high-quality results. Future versions will add AI neural network models for even sharper results.
?Is my data private?
Yes. Everything runs 100% locally in your browser. Your video never leaves your device — no data is uploaded to any server. The processing happens entirely on your GPU.
?Is this tool free?
Yes. Completely free with no limits, no sign-up required, and no watermarks on the output.