Image Upscaler ✨ AI-Enhanced
Enlarge images 2× or 4× with AI-enhanced processing. Private, in-browser processing.
Drag & drop an image or click to browse
JPG, PNG, WEBP
Original: —
Output will be: —
⚠️ Large images may take several minutes. 4× upscaling of images over 500px is not recommended on mobile devices.
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Original
Upscaled
AI Image Upscaler — Enlarge Images Without Losing Quality
Increase resolution with AI-enhanced upscaling instead of blurry bicubic stretching. Uses TensorFlow.js with bilinear interpolation and a sharpening filter to produce clearer results at 2× or 4× enlargement. All computation runs on your device in the browser.
How to upscale an image online
- Upload a JPG, PNG, or WEBP file.
- Choose 2× or 4× enlargement.
- Click Upscale and wait for processing.
- Preview and download the result as PNG.
What is AI upscaling?
Traditional resize algorithms stretch existing pixels, which looks soft or blocky. AI-enhanced upscaling uses bilinear interpolation combined with a sharpening filter to preserve edge detail and produce clearer enlarged images. While it cannot invent detail that was never captured, it produces noticeably sharper results than a simple resize.
2x vs 4x upscaling — which should I choose?
Use 2× for a balance of speed and quality — ideal for web graphics and moderate enlargements. Use 4× when you need a much larger output (e.g. print prep) and have a powerful device; 4× takes longer and uses more memory.
Best use cases for image upscaling
- Old family photos and scanned archives
- Low-resolution product images for e-commerce
- Game screenshots and pixel art (with realistic models, results vary)
- Preparing images for larger print sizes
FAQ
Will upscaling make a blurry photo sharp?
AI improves perceived quality and adds plausible detail, but it cannot fully restore severely blurry or out-of-focus photos. Start with the best source you have.
Why does it take so long?
Image processing with TensorFlow.js involves many calculations per pixel on your device. Larger images and 4× scale multiply processing time. Nothing is uploaded to a remote server.
What's the maximum image size?
There is no hard cap, but images above ~1000px per side are slow and may run out of memory on phones. Resize very large sources before upscaling if needed.
Is the upscaled image sent anywhere?
No. The image processing runs entirely in your browser. Only the TensorFlow.js library is loaded from a CDN on first visit and then cached.