You can use Anti Aliaserr directly in your browser:
Visit the website, enter a line art image and it will run, then download the image or copy to clipboard to save it. The outputted image will be a png regardless of what type of file was entered.
I wanted a program that would apply anti-aliasing to an existing digital line drawing that didn't have anti-aliasing, so I created this simple web app.
By placing a file in the site, it will be modified to have an anti-aliasing effect with the option to download or copy to clipboard.
This program was not made for coloured images and is only designed for line art.
This program works by blurring the image, thinning the lines in the image and fading the edges to create an anti-aliasing effect. The result is the final image will likely look more smooth and slightly thinner as if it was drawn with a brush with anti-aliasing, the image should be transparent and ready to be used.