ResizePixel is a free image editor to crop, resize, flip, rotate and convert image online. Upload an image, apply tools and download the result image in three steps. Supports desktop, tablet and smartphone devices.
iOS icons converter is a simple tool I developed in one night because I was frustrated with having to pay for tools to export my SVG app icon designs to the various @1x, @2x etc sizes. This way, I can draw them using free SVG tools and still export them to the required sizes quickly. I hope you also find it useful, let me know what you think!