Image Upscaler
Enlarges images two to four times using Lanczos resampling with optional sharpening for photos, or the Scale2x/Scale3x family that keeps pixel-art edges crisp instead of blurring them.
Runs 100% in your browser — images never leave your device.
Read the full guide to this tool
Notes
- Resampling cannot invent detail that was never captured; it produces the cleanest possible interpolation. For pixel art, Scale2x preserves hard edges far better than smooth filters.
- Everything runs locally in your browser; your images are never uploaded to any server.
Explore the idea
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