图片工具
Image Upscaler
Upscale images 2×, 3×, or 4× in your browser using Bicubic, Lanczos, or Nearest-neighbor resampling
Drop an image here or click to browse — PNG, JPG, WebP (max 20MB)
Max size: 20MB
All upscaling happens in your browser — images never leave your device.
Bicubic uses the built-in Canvas API (fast, good default). Lanczos is a higher-quality pure-JS resampler (slower but sharper). Nearest preserves hard pixel edges — ideal for pixel art or sprite sheets.