Features of copainter Upscaling

With just one click, the AI increases the resolution of your illustration. You can choose between 2x (4x resolution) and 4x (16x resolution) upscaling modes depending on your needs. It uses models specialized for illustrations, allowing you to enlarge images without sacrificing line clarity or brush texture. Whether you're posting on social media, printing posters, or creating animations, it delivers high-quality output in any scenario.

You don’t need a high-performance PC or complex software to use this tool. With its intuitive web interface, even beginners can operate it with ease. copainter is a next-generation creative support tool that expands your creative potential and makes the production process easier.

It's very easy to use

Upload your image

Upload the image you want to upscale into the 'Image Input' section of the tool. (Files larger than 2000×2000 px cannot be uploaded.)

Choose your scale

Select either '2x' or '4x' and click the submit button. 2x upscaling consumes 1 ticket, while 4x consumes 2 tickets.

Get your high-resolution image!

After about 10 seconds, a beautifully upscaled image will be generated. If you're satisfied, download your high-quality image and use it as needed!

Why copainter Upscaling stands out

Instant, high-quality results with one click

Just press a button and the AI analyzes your lines and color gradients to intelligently upscale your illustration. It naturally enhances the details while reducing jagged edges and noise, faithfully preserving your brushwork and texture. No external software or complex settings needed—elevate your output quality without disrupting your workflow.

Choose between 2x or 4x scale

Select 2x for web or A4 prints, or 4x for large posters and merchandise. The tool automatically switches algorithms to enhance edges and preserve textures, striking the perfect balance between sharp lines and smooth shading. You can quickly review the preview and retry without hassle, making experimentation stress-free.