Image Effects & Filters Tools

Duotone Image Effect Generator exists because the effect is one of the most-searched photo treatments and every existing tool either requires a login, uploads the file to a server, or processes it server-side. All the maths is a single per-pixel luminance mapping loop that runs entirely in a Canvas element, so the image never has to leave the browser.

Noise/Grain Generator, Face Blur Redaction and CSS Filter Creator join here rather than on the main Image hub because they all modify pixel data at the Canvas level rather than manipulating layout, metadata or file format. Keeping them together means a designer building a social media graphic can move from duotone to grain to blur without switching hubs.