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Instagram filters are simple and simple to build your own without any external library, just pure and simple HTML + JS. OpenInsta is a simple HTML and JS tool that lets you create your own image processing engine. It will connect our image to our canvas, convert it into a flat flat array (JPEGEG, PNG, BMP, PNG) and convert it to a flat array. When our user selects an image, we attach the file as the source of a JavaScript node. This will automatically start loading the image and when it is done, when it's done, we draw its contents to the user.