AI video upscaler
Upload a soft, small or old clip and the AI video upscaler rebuilds it at 2x or 4x — 540p to 4K, 720p to 1440p. It runs Topaz Video Upscaler, the same model behind the desktop app studios pay a licence for.
No prompt to write, no settings to learn. The clip is the whole request. Clips under 5 seconds are free with your signup credits.
Upload after sign-in
Upload after sign-in.
One pass, 270p back to 1080p
Before and after
Honest disclosure: we took a 1080p clip and downscaled it to 480×270 at CRF 30 to create the "before". That is deliberate — it gives the comparison a ground truth, so the 4x result can be checked against the original resolution instead of just looking sharper. The upscale itself is a real, unedited run.
What the AI video upscaler actually fixes
Upscaling is one specific job done well, not a general repair tool. These are the cases where an AI video upscaler earns its cost, and the ones where it cannot help — worth knowing before you spend credits.
Low-resolution footage that has to fill a big screen
This is the core case. A 480p export, a clip pulled off an old phone, a render you only have at 540p — anything that looked fine in a small player and falls apart full-screen. The model reconstructs edge and texture detail rather than simply interpolating pixels, which is why 4x output holds up where a plain resize turns to mush. A 540p source at 4x lands at 4K; 720p at 2x lands at 1440p.
Soft, compressed and blocky clips
Heavy compression leaves blocking around motion and smears fine texture. The upscaler rebuilds through those artefacts instead of magnifying them, which is the practical difference between this and any resize in a video editor. The more compressed the source, the more visible the improvement — and also the more the model is inferring rather than recovering.
Old AI-generated video at yesterday's resolution
Clips generated a year ago at 480p or 720p can be brought up to current delivery resolution without regenerating them — which matters, because regenerating never returns the same shot twice. If you have a take you liked and cannot reproduce, upscaling is the only way to keep it and still deliver at 1080p or 4K.
What it will not do
It does not invent information that was never recorded. A face that is six pixels wide will come back sharper but not identifiable. It does not deblur camera shake, fix bad exposure, remove watermarks, or change the frame rate — those are different jobs and different models. If the source is fundamentally out of focus, upscaling makes a crisper version of a blurry shot.
The AI video upscaler at a glance
up to 4K output
2x / 4x
credits per second
6–10
on signup credits
≤5s free
MP4, MOV or MKV
32MB
AI video upscaler questions
Is there a genuinely free AI video upscaler here?
Clips of 5 seconds or under are covered by the credits you get at signup, so a short test costs you nothing and needs no card. Past 5 seconds it bills per second — 6 credits per second at 2x, 10 at 4x — because the model itself is billed that way. Anyone offering unlimited free 4K upscaling is either running a far weaker model or is about to change their pricing.
Do I need to sign up?
Yes, to run it — the free allowance is tied to your account, and uploads have to be stored somewhere while the model works. You can see a real result before signing up: the before/after on this page is an unedited run of this exact tool at 4x.
How is this different from buying Topaz Video AI?
Same underlying model, different commercial shape. Topaz sells a desktop licence around $299 and then uses your own GPU and your own hours. Here the AI video upscaler runs server-side and bills by the second, so a handful of clips costs a few dollars instead of a licence. If you upscale footage every week, the desktop app is cheaper in the long run and we would rather say so; if you have a few clips, this is.
Should I use a local or offline upscaler instead?
Local tools are free of per-use cost and keep footage on your machine, which genuinely matters for confidential material. The trade is your time and hardware: a 4x pass on a capable GPU takes minutes per clip, and the free local models are generally a step behind Topaz on fine texture. Use local for bulk work you can leave running; use this when you want one clip done now.
Can it upscale video to 4K?
Yes, if the source resolution supports it. 4x turns 1080p into 4K and 540p into roughly 1080p — the factor multiplies each side, so the output depends on what you start with. A 4K result from a very small source is technically 4K and will still look like what it came from; the honest ceiling is set by the source, not the setting.
What are the file limits?
Up to 32MB, in MP4, MOV or MKV, between 1 and 60 seconds. If your clip is too large, export it at a lower bitrate first rather than a lower resolution — bitrate is what fits it under the cap, and resolution is the thing you are here to increase. Audio is left untouched.
How long does the upscale take?
Roughly a minute for a short clip at 4x, and it scales with length and factor — our 8-second 4x demo took about 75 seconds. 2x is meaningfully faster and cheaper than 4x, so when a clip only needs to double, 2x is the better buy.
Does upscaling add detail that was never there?
Partly, and it is worth being precise about this. The model reconstructs plausible detail from patterns it learned, so what comes back is a well-informed reconstruction rather than recovered original information. For texture, edges and general sharpness that is exactly what you want. For anything where accuracy is the point — reading a licence plate, identifying a distant face — treat the result as an interpretation, not evidence.
Run the AI video upscaler on a clip now
Upload one video and let the AI video upscaler take it to 1080p or 4K. Clips under 5 seconds are free with your signup credits — see what it does to your own footage before paying for anything.