Got a small image that needs to be bigger? Blowing up a photo usually makes it pixelated and blurry — but with Lanczos resampling, you can enlarge images while keeping them surprisingly sharp.
How Image Upscaling Works
- Upload your image — JPG, PNG, or WebP
- Choose your scale — 2x, 3x, or 4x enlargement
- Download the larger image — crisp and clean
When You Need Upscaling
- Printing photos — a 1000px image prints at ~3 inches; upscale to 4000px for 12-inch prints
- Presentations & slides — small logos and screenshots blown up for big screens
- Social media — profile pictures and banners that need higher resolution
- E-commerce — product photos that need to fill larger display areas
- Graphic design — stock images that need more pixels for layouts
Lanczos vs Basic Resize
ToolLab uses Lanczos resampling — the same algorithm used in professional software like Photoshop and GIMP. Unlike basic nearest-neighbor or bilinear resizing, Lanczos preserves edge sharpness and reduces the "soft" look you get with simpler methods.
Other Image Tools
- Background Remover — AI-powered, instant results
- Format Converter — PNG, JPG, WebP, and more
- Image Resizer — precise dimensions or percentage