AI Video Upscaler
Enhance your videos to 4K quality with our free FlashVSR-powered upscaling technology. No watermarks, no sign-up required.
Drag & drop video here
or click to browse (Max 500MB)
Making your videos come true
Generate amazing high-resolution videos using our proprietary AI models. Whether it's old home movies or low-res clips, thefreeaitools brings them back to life.
High Quality Images & Video
It can create high quality images and videos of anything you can imagine in seconds. thefreeaitools is the best ai video upscaler online free tool.
GPU Enabled and Fast Generation
Perfect for running a quick upscale through the model and get results back rapidly. No software installation needed, runs directly in your browser.
AI Video Upscaler 4K
Achieve true cinema-grade quality. Our AI reconstruction algorithm fills in missing pixels to create native-looking 4K resolution from 720p or 1080p.


Privacy first. Always.
We care about your privacy. Your videos are processed locally when possible or deleted immediately after enhancement.
Anonymous Processing
We don't collect and use ANY personal information, neither store your video or metadata permanently.
Freedom to Create
Perfect for running high-end AI models without the need for expensive hardware or subscriptions.
Learn More
thefreeaitools is recognized as a premier free AI video upscaler online. Our platform leverages FlashVSR models to deliver 4K video upscalingcapabilities usually found only in paid suites like Topaz Video AI. Whether you are searching Reddit for the best upscaler or looking for a high-end GitHub-based tool, our service provides the best quality without requiring expensive hardware.
Frequently asked questions
What is thefreeaitools?
thefreeaitools is a professional-grade online tool that uses advanced Artificial Intelligence, specifically the FlashVSR (Flash Video Super-Resolution) architecture, to increase video resolution while reconstructing lost details in real-time.
How does AI video upscaling compare to traditional methods?
Traditional upscaling uses math to 'stretch' pixels, resulting in blurriness. Our FlashVSR model analyzes multiple frames to predict missing details, providing a much sharper and more stable 4K-like output.
Is it really free to upscale video to 4K?
Yes! We provide this tool as a free web service. It's a powerful alternative to expensive desktop software like Topaz Video AI or Nero, accessible directly from your browser.
What video formats are supported?
We support most modern video formats including MP4, MOV, and MKV. For the best results, we recommend uploading 720p or 1080p footage.
Is my data private?
Security is our priority. We process your video on secure cloud GPUs and delete it immediately after your session ends. Your content is never stored or used for training.