Are files uploaded for this tool?

This browser tool processes the selected media locally on this device. The file is not uploaded to ArtPlayer servers for this workflow.

Will the export have a watermark?

No. ArtPlayer browser tools do not add watermarks to exported files.

Why can processing take time?

The work runs in your browser, so speed depends on your device, browser, memory, source size, and the export settings needed for the result.

Which browsers work best?

Recent Chrome, Edge, and other modern Chromium browsers usually work best for heavier browser media processing.

What should I try if a large file fails?

Try a smaller source, close other heavy tabs, reduce resolution or duration first, and keep the tab open until the export finishes.

Which browser should I use for video upscaling?

Use a recent desktop Chrome or Edge with WebCodecs and WebGPU or WebGL support. The Quality model requires WebGPU; available models and output dimensions depend on your device.

Why is upscaling slow?

AI upscaling is compute-heavy and depends on your browser, GPU support, memory, source resolution, and source length.

Is the output always 2x or 4K?

No. The tool targets up to 2x the source width and height. Browser encoding and device limits can reduce the output dimensions. Check the result resolution; a fixed 4K output is not guaranteed.

Will upscaling restore missing detail perfectly?

No. Upscaling can enhance perceived detail, but it cannot perfectly recover information that was never in the source.

What if the video is too large?

Try a shorter clip, a smaller source, or a desktop browser with stronger GPU support. Large files can exceed browser memory limits.

Browser video tool

AI Video Upscaler

WebGPUWebGLUp to 2xLocal processing

Upscale videos up to 2x for free with AI in your browser. Compare the result and download an MP4 without uploading your video.

Source video

Drop a file here, or click to choose

AI mode

Quality model

FastBalancedQuality

How it works

Three steps to finish the browser workflow.

1
Choose a video file
Upscale videos up to 2x for free with AI in your browser. Compare the result and download an MP4 without uploading your video.
2
Start upscaling
ArtPlayer loads AI super resolution model weights locally, sends frames to a browser worker, and exports a new MP4 result.
3
Download MP4
Check the finished result, then download the exported file.

Everything you need

Core details about privacy, browser support, output, and practical limits before you start.

100% local

No server upload; the selected video stays on this device.

Private

Processing happens in browser APIs and local workers.

GPU ready

Uses WebGPU or WebGL where the browser supports it.

Input, output and limits

Check supported inputs, output formats and usage requirements before you start.

Supported input	Video files such as MP4, MOV and WebM. Container and codec support depends on the browser and processing runtime.
Output result	Export options: MP4.
Processing and privacy	Processing runs on this device. Source media is not uploaded for this workflow.
Browser requirements	WebCodecs plus WebGPU or WebGL. The Quality model requires WebGPU; available models depend on the device.
Usage limits	Processing capacity depends on duration, dimensions, codecs, settings and available device memory. Large inputs can fail; keep the original file.
Is the output always 2x or 4K?	No. The tool targets up to 2x the source width and height. Browser encoding and device limits can reduce the output dimensions. Check the result resolution; a fixed 4K output is not guaranteed.