How-To Guide
How to upscale video online with AI
Try an AI enhancement of an old or low-resolution clip without installing software. Preview your own footage, compare the result and decide whether it is worth processing in full.
What Is Video Upscaling?
Video upscaling increases the resolution of a video — for example, taking a 480p clip and enlarging it to 1080p. Traditional upscaling simply stretches existing pixels, which produces a soft, blurry result. You've seen this: zoom into a low-res video and everything looks mushy.
AI upscaling estimates detail from the source rather than just enlarging pixels. The appearance may improve, but inferred textures, faces and lettering can be inaccurate.
Why AI Upscaling Beats Traditional Methods
ClearFrame uses ReCaVSR to enhance nearby frames together. Compare its output with the original: the model architecture alone does not guarantee a better or more accurate picture.
Traditional upscaling
Bicubic or Lanczos interpolation. Stretches existing pixels. Result: larger but blurrier. No new detail is created — the video just gets bigger and softer.
AI diffusion upscaling
ReCaVSR estimates edges and textures using a diffusion model. Results depend on the footage, and generated detail can differ from the original scene.
How to Upscale Video with ClearFrame
Upload your video
Sign in and upload MP4, MOV, AVI, MKV or WebM, up to 500 MiB. An account is required for the free sample preview.
Get your free preview
Choose a 1-second segment from your video and generate a free before-and-after preview. Compare the result before paying.
Enhance the full video
One video up to 30 seconds, 30 fps and 1080p input for US$2.99 before applicable tax. Standard enhancement, no subscription or credit pack.
Download and check your result
Download the enhanced video when processing finishes. Check its dimensions, motion and audio sync; output size depends on the source and processing limits.
What to Expect: Before & After
AI upscaling works best on video that is low-resolution but otherwise clean. Here's what the enhancement typically delivers:
- Edges may look clearer, but text and fine detail are not guaranteed to be accurate.
- Some textures may appear more defined; compare against the original for unwanted changes.
- Temporal processing considers nearby frames, but you should still check motion and flicker.
Resolution is only part of the result
These input examples describe pixel counts, not guaranteed output sizes. ClearFrame chooses output dimensions according to the source and processing limits; inspect the preview.
| Input | Output | Input pixels | Typical source |
|---|---|---|---|
| 240p | Check preview dimensions | About 0.10 million (426 × 240) | Small web clips; very limited detail |
| 360p | Check preview dimensions | About 0.23 million (640 × 360) | Older web or phone footage |
| 480p | Check preview dimensions | About 0.41 million (854 × 480) | Standard-definition footage |
| 720p | Check preview dimensions | About 0.92 million (1280 × 720) | HD footage with modest room to enlarge |
Choose a suitable clip
Worth trying a preview
- A short, low-resolution clip that needs to look clearer on a larger screen.
- A digital copy of an old recording with recognizable faces and objects.
- A lightly compressed source whose original file is still available.
- An occasional enhancement where installing desktop software is inconvenient.
Consider another workflow
- Exact 4K delivery, professional restoration controls or large batch processing.
- Recovering verifiable identities, license plates or text from missing detail.
- A severely blurred, overexposed or damaged source that already fails the preview.
Video upscaling questions
Does 4× mean every video exports at 4× its dimensions?
No. The model supports upscaling, but source dimensions and processing limits determine the output. The preview shows the actual size.
Will upscaling recover the original detail?
AI estimates plausible detail from the available frames. It can improve appearance, but cannot guarantee factual recovery of missing information.
What is free?
One video up to 30 seconds, 30 fps and 1080p input for US$2.99 before applicable tax. Standard enhancement, no subscription or credit pack.
How should I compare the result?
Watch both clips at the same display size and at normal speed. Inspect faces, text, fine patterns and camera movement.
Ready to upscale your video?
Upload your video and get a free side-by-side preview. See the AI quality before you pay.