Create unique and awesome colors with Colorize! — Shade, blend and customize any color to get the perfect palette for your web sites and designs.
Includes three rich palettes: Web colors, Material design colors and Social colors.
Courier is a lightweight HTTP and API client for testing webservices.
Has syntax highlighting, loading/saving of requests, support for multipart requests, built-in image and hex viewers, certificate validation with whitelisting and more!
There are tons of mail testing services online with different features, limits and prices.
But if you develop on a Windows machine you can have a local SMTP server and save both time and money; forget about proxies, tunnels an monthly fees!
