I Made a Free Photo Editor, Meme Generator, and Background Remover — All Client-Side

I've been on a kick lately building browser-based tools that don't upload your stuff anywhere. After doing PDF tools and converters, I figured image editing was the obvious next target. So I built three things: a photo editor, a meme generator, and a background remover. All running on Canvas API, all client-side, all free. Here's what I learned about pushing Canvas to its limits. The Photo Editor: CSS Filters Meet Canvas Browsers have CSS filters — brightness() , contrast() , saturate() , blur() , etc. They're great for previewing edits, but if you want to actually export an edited image, you need to apply those filters at the pixel level using Canvas. The nice thing is that the Canvas 2D context supports the same filter property as CSS: function applyFilters ( sourceCanvas , filters ) { const output = document . createElement ( ' canvas ' ); output . width = sourceCanvas . width ; output . height = sourceCanvas . height ; const ctx = output . getContext ( ' 2d ' ); // Build the CSS fi