AI Video Upscaler

Upscale supported videos locally with Anime4K AI on WebGPU. Choose a higher resolution, compare a preview and export H.264 MP4 without uploading your video.

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Your video stays on your device — processed locally in your browser, never uploaded.

Quick Facts About AI Video Upscaler

Upscale supported videos locally with Anime4K AI on WebGPU. Choose a higher resolution, compare a preview and export H.264 MP4 without uploading your video.

Input
A local video with a supported, browser-decodable video track
Output
MP4 with H.264 video; audio is copied or converted when supported
Resolution
Available higher targets depend on the source; output dimensions are shown before export
AI engine
Anime4K CNN 2× model via WebSR, followed by resizing to the selected target
Requirements
WebGPU plus WebCodecs decoding and H.264 encoding support
Preview
Before/after comparison of a reduced-resolution still
Processing limits
Local processing; full-frame GPU memory and in-memory output limit practical clip size

AI Upscaling vs Simple Video Resizing

Simple resizing interpolates pixels to make a larger image. TakeVid first runs each decoded frame through an Anime4K convolutional neural network using WebGPU. The model produces a 2× frame and estimates additional visual detail; Canvas then resizes that result to the output dimensions you selected. This is one 2× AI pass, not a separate 4× AI model. A larger image cannot guarantee recovery of details missing from the original, and results depend on the source.

Which Output Resolution Can I Choose?

After you select a file, TakeVid displays its input dimensions and available larger output dimensions. The choices are drawn from 720p, 1080p, 1440p and twice the source height, with lower or equal choices removed. Width follows the source aspect ratio with rounding to even dimensions. For example, a 720p source can offer 1080p and 1440p, while doubling a 1080p source gives a 2160p-height target. These targets are not a promise that every GPU can process or encode them.

What Does the Before/After Preview Show?

The comparison uses one frame around the middle of your video. For the preview, the source frame is reduced to at most 640 pixels wide before the same AI model and target scaling are applied. Use it to judge whether the effect suits your source, then inspect the downloaded MP4. It is a reduced-resolution still preview, not a full-resolution benchmark or a guarantee of identical results for every frame.

Browser, GPU and Memory Requirements

The tool needs WebGPU, a working GPU adapter and WebCodecs support for decoding the source and encoding H.264. Model weights are bundled with the website and video processing stays in a background worker on your device. Inference uses full-frame buffers rather than tiles; the AI canvas is twice the source width and height, and the finished MP4 is held in memory. There is no CPU fallback or universal maximum file size. Try a short clip first, and use a smaller source if GPU allocation or encoding fails.

What Happens to the Audio?

An audio track already supported by the MP4 output container is copied without re-encoding. Otherwise TakeVid attempts to decode and re-encode it, using AAC where available or an Opus fallback. If no audio encoder exists for that fallback path, export can be silent. Preview the finished file and check its sound before replacing or sharing the original.

How to Upscale a Video

  1. Choose a short video that your browser can decode, such as MP4, WebM or MOV.
  2. Review the detected dimensions, choose an available higher output resolution, then start processing.
  3. Preview the finished MP4 and download it. Processing stays on your device for the duration of the task.

Why Use TakeVid AI Video Upscaler

  • Anime4K neural processing on your GPU, followed by scaling to the selected dimensions
  • Available higher output resolutions depend on source height
  • Reduced-resolution before/after still preview
  • H.264 MP4 output; audio preservation depends on codec support
  • No upload queue: decoding, upscaling and encoding run locally in your browser
  • Best suited to short clips on a recent desktop browser with WebGPU and WebCodecs

Supported Formats

Input: a video your browser can decode, including many MP4, WebM and MOV files. Output: a standard H.264 MP4 at the output resolution you choose. Audio is retained when the input and output support it.

Common Use Cases

  • Prepare a short 720p or 1080p clip for a higher-resolution display
  • Make older phone, webcam or screen-recording clips easier to view
  • Create a larger version of a social clip before adding it to an edit
  • Preview whether upscaling improves a compressed source enough for your use
  • Generate a higher-resolution MP4 for a TV, projector or presentation
  • Test a local AI upscaler before committing a long project to a desktop workflow

Privacy & Browser Processing

This tool runs entirely in your browser using WebCodecs. Your video is decoded, processed and re-encoded on your device — it is never uploaded to a server, and everything is released when you close the tab.

Related Video Tools

  • Compress Video to a Target Size — Reduce video file size with a custom MB target. TakeVid selects bitrate, resolution and frame rate locally, checks the result and exports H.264 MP4 without uploads.
  • Video Converter Online — Convert supported videos to MP4, WebM, MKV or MOV locally. Choose quality, resolution and frame rate, with H.264 or VP9 output and no video upload.
  • Video Frame Extractor — Extract stills from supported videos locally. Capture at the playhead or sample a range at intervals. Save PNG, JPG or supported WebP images, individually or as ZIP.

Download Videos with TakeVid

TakeVid is a browser extension that detects supported video and streaming resources on many websites. Save compatible media in your browser, then edit the source clip with these local video tools.

Install TakeVid Extension

Frequently Asked Questions

How does the AI video upscaler work?

An Anime4K convolutional neural network processes each frame with WebGPU in a background worker. One 2× AI pass is followed by resizing to the selected dimensions, then H.264 MP4 encoding. This is different from ordinary resizing alone.

What resolution will my video become?

Available larger heights are chosen from 720p, 1080p, 1440p and twice the source height. Width follows the source aspect ratio. A 720p source can offer 1080p and 1440p; GPU memory and codec support still determine whether an export succeeds.

Will AI upscaling improve video quality?

It can make edges and compressed textures look cleaner than ordinary scaling, but it does not recover detail that was never captured. Very blurry, heavily compressed or tiny sources may improve only a little; preview the result before relying on it.

Which browsers can run this tool?

Use a recent desktop browser with WebGPU and WebCodecs, such as Chrome or Edge. If WebGPU is unavailable, the page shows a notice and the tool is disabled.

Will the audio quality change?

Audio supported by the MP4 container can be copied. Otherwise the tool attempts conversion with an available AAC or Opus encoder. If the fallback audio encoder is unavailable, output can be silent. Check the completed file.

How long does upscaling take?

Time depends on clip duration, resolution, codec and your GPU. Short clips are the best fit for browser processing; longer or higher-resolution videos use more memory and can take substantially longer. The progress indicator shows the current stage.

Why is the upscaled file larger?

More output pixels and a larger output bitrate can increase file size. Doubling width and height creates four times as many pixels, but that does not imply a fixed file-size multiplier. Compress the result afterwards if it exceeds your sharing limit.

Will my files be uploaded?

Your selected files are processed on your device and are not uploaded to TakeVid. The page and processing modules must load first; available browser codecs and memory still limit what can be processed.