Free · No sign-up · No uploads
Image Upscaler — enlarge photos 4× with AI, right in your browser
Desktop-grade Real-ESRGAN upscaling without installing anything. Drop an image, get a sharper 4× version in seconds — unlimited images, zero credits, and your files never leave your device.
Upscaler tool
Drop an image here, or click to choose
JPG / PNG / WebP · up to 4 MP (beta) · file never leaves your device
Why upscale in the browser?
Private by design
Every pixel is processed on your device. Nothing is uploaded — the safest way to upscale product photos, IDs or family pictures.
No credits, ever
Online upscalers charge $9–10 per 50–100 images. Local inference costs nothing to run, so you get unlimited upscales for free.
Real AI quality
Powered by Real-ESRGAN (general x4v3) — the same open-source model family used by desktop upscalers, with sharp, faithful 4× results.
Popular upscales
Frequently asked questions
Is this image upscaler really free?
Yes — unlimited images, forever. The AI model runs on your own device, so there are no server costs per image. The site is supported by ads only.
Do my photos get uploaded anywhere?
No. The 4.6 MB AI model is downloaded to your browser once, and every pixel is processed locally. Your images never leave your device — safe for product photos, documents and personal pictures.
How is this different from Topaz Gigapixel or online upscalers?
Topaz is a $99+ desktop app. Most online upscalers cap free use with credits and watermarks. This tool gives you desktop-grade quality in the browser with no limits and zero uploads.
What can I use it for?
Product photos, old family pictures, screenshots, artwork, anime images, avatars, print preparation — anywhere you need a bigger, sharper version of a small image without changing its content.
Why is the first upscale slower?
The first run downloads the 4.6 MB AI model and initializes it — a one-time cost. Later runs start instantly, and your browser caches the model.
More answers on the FAQ page.