Free Image Enlarger & Upscaler
Upscale and enlarge image resolution clean without blur in your browser.
- 100% free
- Files stay on your device
- No sign-up, no watermark
Choose files or drag & drop
Upload PNG, JPG, JPEG, WEBP, BMP files to convert locally inside your browser.
What is Image Enlarger & Upscaler?
Increase small photos, web thumbnails, and raster icons for printing or large displays. Our client-side image enlarger applies anti-aliasing interpolation filters to minimize pixelation and edge staircasing.
How to use Image Enlarger & Upscaler
- 1
Add your file or input
Choose a supported file, drag it onto the upload area, or type/paste the data this tool works with.
- 2
Adjust the options
Pick the output format, quality, size or other settings the tool offers. Defaults work well for most files.
- 3
Process and download
Run the tool and save the result. Processing happens in your browser, so nothing is uploaded to a server.
Frequently asked questions
How does bicubic enlargement reduce blocky pixelation?
Instead of simply duplicating pixels (nearest-neighbor), bicubic interpolation calculates weighted color averages across a 16-pixel neighborhood, producing smooth gradients and clean edges.
What is the maximum scaling factor available?
You can enlarge images up to 4x their original pixel dimensions, or specify custom pixel widths up to your browser’s canvas memory limits (typically up to 8,192 pixels).
Can this tool enlarge vector SVG files as well?
For vector SVGs, we recommend using our SVG Converter tool which re-renders paths mathematically at any scale with zero interpolation required.
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