Heroicons - Beautiful, free SVG icons from the makers of Tailwind CSS.
Icon Generator - Icon Generator is a little application built on AIR that lets you generate a CS5 or Web 2.
App Icon Resizer - A service to resize your app icon to all needed resolutions
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
ResizePixel - Free image editor to crop, resize, flip, rotate and convert images online
Icono Maker - Icono Maker is an icon maker for Windows.