Video2x or Waifu2x Extension GUI. Both are free and open-source and available on Github. Answer from cherishjoo on reddit.com
Reddit
reddit.com โบ r/software โบ what's the best free ai video upscaler currently available?
r/software on Reddit: What's the best free AI video upscaler currently available?
July 12, 2025 -
Hey everyone, I'm looking for recommendations on the best free AI video upscaling tools out there. Ideally something that works well with low-res or older videos and can upscale to at least 1080p or 4K with decent quality.
Bonus if:
It runs locally (but cloud-based is fine too)
Supports batch processing
Doesnโt add watermarks
Works on Windows/Linux
Iโve tried a couple, but most seem to have limitations unless you pay. Curious to hear whatโs worked best for you all!
Thanks in advance!
Does Anyone Know of a Free Video Upscaling Service? - Overgrow.com
Would love to upscale a few of the older grow videos and documentaries, as the quality is terrible on a lot of the classics, like Acapulco Gold. Any ideas? More on overgrow.com
Free AI Video Upscaler?
I'm the guy that wrote https://free.upscaler.video . I get why you're looking for a free upscaler tool, but as an explanation, AI Upscaling requires AI, and that usually requires GPUs, and because of the AI boom, GPUs are at a premium and crazy expensive. Add on top of that the fact that video takes a lot of processing power - if you've ever tried rendering a 1 hour video with Adobe Premeire Pro you'd understand. I would guess that a regular person who just wants a video upscaled would be looking at demos of AI upscaling that are super high quality. To obtain that level of quality, you need to do a lot of AI processing and you either need a GPU yourself and then use something like Topaz, or (2) You can use a cloud service, upload your video and get it upscaled. If I wanted to run a cloud service to upscale a 1080p movie to 4k, it'd cost me several dollars in server costs just for that one video. My free upscaling tool gets ~20,000 visitors a month, and while I don't track information about the videos (you can see exactly what I am tracking, I shared the source code here: https://github.com/sb2702/free-ai-video-upscaler/ ). , if each person had an hour long 1080p video, I'd be spending $1M per year out of pocket just so that people can have a free upscaling tool. The idea behind free.upscaler.video was that if you can accept lower upscaling quality, you don't need a GPU, and it'll still do something (it's noticeable for like gaming videos or cartoons) but because it's happening on your computer, it's fast and it's free and I don't ask anyone to sign in. The downside is, the quality isn't very good compared to like Topaz. But again, if I wanted to give good upscaling quality for free, why would I spend hundreds of thousands in my own pocket for nothing. I have a family, and I'm also running my own startup and this was like a side project for me. I'm also likely one of the few people that's actually spent time on low-level AI upscaling processing to make it faster/cheaper/usable without a GPU, but that same skillset has far more valuable applications ( https://medium.com/vectorly/building-a-more-efficient-background-segmentation-model-than-google-74ecd17392d5 ) and I sold my last company during the pandemic because we had ultra-efficient AI software that we were selling to video conferencing companies ( https://medium.com/vectorly/how-vectorly-joined-hopin-93dffdb1acc4 ). There was literally no incentive for me to create free.upscaler.video , I did it to be nice / give back / because I knew people were looking for free upscaling software. I've thought about building a paid service alternative to free.upscaler.video that would cover the server rendering costs enough to get someone fast, good-quality no-frills upscaling, but like it'd have to be a paid service, a free + no-nonsense + good quality system would be uneconomical. As a user you don't normally view it like this because there are plenty of AI tools out there that are free and also use a lot of GPU processing, but it's not dissimilar to the compute needed for say crypto mining. If you wouldn't expect there to be free tools that just give you free crypto, no questions asked, then you can understand the economics of why there aren't that many simple, no-nonsense free AI upscaling tools even though you might feel like there should be. It's in the same category of compute as crypto-mining, but because we're so used to free AI tools, you don't view it in the same category. ----------------- Update - July 27 ----------------------- I don't know why I never checked the logs on this, but apparently the vast majority of uploads on free.upscaler.video are very short videos (under 60 seconds), I assumed most people were uploading like 30 minute or 60 minute videos. None of that changes how expensive large AI networks are computationally, to get better results you'd likey need to wait 10x the duration of your video at the minimum, but the user experience definitely depends on whether you are waiting 2 minutes for a 10 second video, vs 10 hours for a 1 hour video. Sorry if this sounds stupid or obvious, it' s precisely because I don't ask anyone to log in, and don't track anything besides the video metadata (Resolution, length) that I have no idea why people are upscaling or what people are upscaling, I don't have servers that upscale, it's all being done on your computer. My guess is that a lot of that is AI generated footage, and I can 100% understand the desire to upscale that from 720p to 4K. Because those videos are so incredibly short, I think maybe I can build some AI networks that are 100x bigger, and yeah most computers would struggle with that / it'd be pretty slow, but for people with very short videos (the majority) that is probably fine? I will train some much bigger networks and release them in free.upscaler.video , and in the open source repository that powers it https://github.com/sb2702/websr/ More on reddit.com
What's the best free AI video upscaler currently available?
Video2x or Waifu2x Extension GUI. Both are free and open-source and available on Github. More on reddit.com
What's the best free/open AI for upscaling/de-noise-ing VHS and home video?
Video2X Waifu2x Extension GUI Both are for Windows. Or try Capcut. It's online free . More on reddit.com
Is the AI video upscaler free to use?
Yes! You'll be able to try out our video upscaling tool for free. No watermarks.
topazlabs.com
topazlabs.com โบ home โบ tools โบ video upscale
Free AI Video Upscaler โ Instantly Enhance Your Video to 1080p or 4k
What is an AI video upscaler?
It's an advanced tool that uses machine learning to upscale video resolution while preserving motion clarity and detail.
topazlabs.com
topazlabs.com โบ home โบ tools โบ video upscale
Free AI Video Upscaler โ Instantly Enhance Your Video to 1080p or 4k
Can I use the AI video upscaler on mobile?
Yes! Our web-based video upscaler works on desktop and mobile.
topazlabs.com
topazlabs.com โบ home โบ tools โบ video upscale
Free AI Video Upscaler โ Instantly Enhance Your Video to 1080p or 4k
Videos
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Best Free Video Enhancer โ VideoProc Converter AI Review - YouTube
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Best AI Video Upscaler 2025 โ Enhance Old & Low-Resolution Videos ...
CapCut
capcut.com โบ tools โบ ai-video-upscaler
Let AI Video Upscaler Take Your Video to the Next Level
CapCut boasts an easy-to-use video and image editor that allows you to take your creation to the next level. Explore its basic and advanced tools right now.
Picwand
picwand.ai โบ video โบ video-upscaler
Free AI Video Upscaler โ AI Upscale to 4K Resolution Online
This tool is all used for free, you can use it directly online without a watermark. Our AI video upscaler is one of the best online AI video upscalers. It can effectively remove noise from grainy, low-quality video because it applies video color correction in its upscaling process.
Pollo AI
pollo.ai โบ video-upscaler
AI Video Upscaler - Upscale and Enhance Videos for Free | Pollo AI
Yes! Pollo AI offers a free video upscaler option that allows you to test our technology without any commitment. Experience firsthand how our upscaling can elevate your content. The best choice is clear: Pollo AI!
Published ย March 13, 2025
TensorPix
tensorpix.ai
Enhance Video and Image Quality Online | TensorPix
Enhance and upscale your videos or images online using AI in less than 3 minutes. Try for Free and without sign up. No installation needed.
Microsoft Store
apps.microsoft.com โบ detail โบ 9pct89lwp09x
Video Upscaler & AI Video Enhance for Windows - Free download and install on Windows | Microsoft Store
1 month ago - Enhance Your Video Quality to Super Resolution with AI! Transform low-quality videos into stunning 4K, 8K, or even 120FPS footage with Nero AI Video Upscaler. # Whatโs New? - Restoration Model: Experience our latest upscaling model that is ...
Clipfly
clipfly.ai โบ home โบ video ai โบ upscale video to 4k
Upscale Video to 4K: Free AI 4K Video Enhancer | Clipfly
Whether itโs a video of 720p or 1080p resolution, our tool can easily increase its video quality to 4K online free. Simply upload the video and Clipfly, powered by advanced AI technology, will automatically turn your low-quality video into a video of 4K resolution. With our AI video upscaler 4K, you can experience the simple workflow of 4K video upscaling and enjoy ultra-high-definition video quality.
Fotor
fotor.com โบ home โบ ai enhancer โบ ai video upscaler
Free AI Video Upscaler: Use AI to Upscale Videos Online | Fotor
Upgrade your videos from 240p, 360p, and 480p to higher resolutions such as HD and 4K upscaling, with a single click. Immerse yourself in stunning visual detail as Fotor effortlessly improves resolution and corrects artifacts, making your videos shine. Upload Video Now ยท Easily enhance your videos to high resolution with our free AI video upscaler without sacrificing quality.
Upscaler
free.upscaler.video
Free AI Video & Image Upscaler - No Signup, 100% Client-Side & Private
Upscale videos or images with AI for free, right in your browser - no signups, installation or config necessary. It is fast, free and open source. This is a quick, free no-nonsense tool for upscaling videos with AI right in the browser. There is no software to install, and no registration or sign up required.