Video Upscaler Online

Viralkey's video upscaler is a dedicated quality pass for a clip you already have. You upload one video, pick 1× enhance, 2× upscale, or 4× upscale, and get a clearer file back. It is not a generative rewrite: the scene, faces and source frame rate stay the ones in the upload. Use it when a clip is soft, compressed or too small for a post — not when you want a new video invented from a prompt.

The pass analyzes the uploaded frames and applies the factor you picked. Clarity and local detail should improve while the original motion stays. You do not write a prompt and you do not pick a style. Upload, choose 1×, 2× or 4×, read the quote, and start. That is the whole brief for this AI video upscaler.

Yes. You can enhance a video you already shot at 1×, or enlarge it at 2× or 4×. It works well for social clips, tutorials, and product demos when the source still has something to recover. A second pass will not invent detail that was never in the file. Start from the cleanest original you have.

Upload an MP4, MOV or WebM, pick the target resolution, and start the pass. The form shows duration, frame rate, source size and the credit quote before anything is charged. When the run completes, play before and after side by side and download the take you want. That is how to upscale video here — three decisions, one file.

The closed set is 1× enhance, 2× upscale, and 4× upscale. Those are real factors on the form, not stretched previews. 1× is the lighter spend for a same-size clean-up. 2× is the everyday enlarge. 4× is for a small source, still bounded by a short-side cap. The page does not sell a named 4K output. If the source is already huge, stay on 1× — extra pixels rarely help a clean large file.

Upload MP4, MOV or WebM, up to the size cap shown on the form. Other containers are out of scope on this page. Duration is limited to five minutes. If the file is larger than the cap, compress or trim it first. The source frame rate is preserved; you are not picking a new fps on this form.

Yes. Each run is a Viralkey Studio generation and spends credits from your balance. This tool requires Pro — generation is gated until you upgrade, not a limited free-tier allowance. The exact spend is shown in-product before you start. Rerunning the same clip at another factor is a new spend.

There is no single winner for every clip. The best AI video upscaler for this page is the one that keeps your shot, offers a real 1× / 2× / 4× factor, and shows the credit quote before you start. Viralkey is built for that job. If you need a new scene, a new performance or a prompt-led rewrite, use a different studio page.