Drag & drop or click to upload
Max 10MB - Ctrl+V to paste
Max input: 1000 x 1000 px - 10 MB - GPU processed on server
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How to use AI Upscaler
- 1
Upload your image
Drop a JPG, PNG, or WebP image (max 1000×1000 px input).
- 2
Select scale factor
Choose 2×, 4×, or 8× magnification. Higher factors take longer.
- 3
Wait for AI processing
Our GPU-powered Real-ESRGAN model enhances your image. This takes 5–30 seconds.
- 4
Download the upscaled image
Download your high-resolution result in the original format.
Features
- +Powered by Real-ESRGAN — state-of-the-art AI upscaling
- +2×, 4×, and 8× magnification options
- +Preserves fine details, textures, and edges
- +GPU-accelerated on RTX 3070 for fast processing
- +Supports JPG, PNG, and WebP input
- +Completely free — no watermark, no signup
Frequently Asked Questions
What is AI image upscaling?
AI upscaling uses a deep-learning model (Real-ESRGAN) trained on millions of image pairs to intelligently add detail when enlarging, unlike traditional bicubic scaling which just blurs.
What is the maximum input size?
Input images up to 1000×1000 px (1 megapixel). At 4× this outputs a sharp 4000×4000 image.
How long does upscaling take?
2× takes about 5–15 seconds, 4× takes 15–30 seconds, and 8× (applied twice) may take 60+ seconds.
What file formats are supported?
JPG, PNG, and WebP are supported for both input and output.
Is it really free?
Yes — ScaleImg is completely free with no watermarks, no file limits per session, and no signup required.
Related Tools
If you need the next step, try Background Remover, Noise Remover, Image Compressor, Image Resizer.