Load source
Drop in a PNG, JPG, WebP, or MP4 file and start immediately without accounts, uploads, or setup screens.
100% Free ForeverLocal Processing (WebGPU)Zero Server UploadsAbsolute Privacy
Upsampler App is a free AI upscaler for images and videos.
Powered by WebGPU, all processing happens locally on your own hardware. Your files never leave your device—meaning absolute privacy, zero server queues, and a completely free native experience.
Upsampler Studio
One place for source, preview, and export.
Preparing studio
Loading image studio
Preparing the enhancement view.
How It Works
Three steps from source file to final export.
The experience stays simple on purpose: input first, preview second, export third. Every state is designed to feel clear, fast, and easy to trust.
Preview enhancement
Upsampler auto-tunes the enhancement path, shows clear status, and keeps the before-and-after view front and center.
Export result
Download a sharper image or MP4 as soon as processing finishes, with no extra wizard steps or account gates.
Two Modes
Separate image and video flows, one polished experience.
Video Upscaler
Open the video tab for MP4 preview, processing progress, ETA feedback, and a straightforward export path.
Image Upscaler
Open the image tab for quick 2x enhancement, split comparison, and a direct PNG export path.
Why It Lands
Designed to feel fast, clear, and dependable.
Absolute Privacy
Zero Server Uploads
Your files never leave your device. All AI models run locally in your browser using WebGPU, ensuring complete file security.
Local runtime
100% Free & Unlimited
Because you provide the compute via your own hardware, there are no hidden subscription fees, no credit limits, and no remote server queues.
Clear by design
No signup, no install
Start immediately without accounts or setup screens. The experience stays simple on purpose: input, preview, and export instantly.
FAQ
Questions the product answers upfront.
Is Upsampler App really free?
Yes. This project is designed around a free local-processing workflow, so you can try image and video upscaling without creating an account or buying credits.
Do files get uploaded to a server?
No. Upsampler App is designed so your files stay on your device during processing unless you decide to move them somewhere else yourself.
Which browsers work best?
For the smoothest experience, use the latest desktop version of Chrome or Edge. They currently deliver the strongest support for the full image and video workflow.
What file types are supported?
The image flow accepts common formats such as PNG, JPG, and WebP. The video flow is tuned for MP4 input and exports an upscaled MP4 download.