Add DevUtils.app (#1104) (fix #835)

README.md

@@ -876,6 +876,7 @@ Any comments, suggestions? [Let us know!](https://github.com/jaywcjlove/awesome-
 * [Cloudflare WARP](https://1.1.1.1/) - Replaces the connection between your device and the Internet with a modern, optimized, protocol. ![Freeware][Freeware Icon]
 * [ControlPlane](http://www.controlplaneapp.com/) - Manages configuration profiles for your Mac. Determines where you are or what you are doing based on a number of available evidence sources and then automatically reconfigures your Mac based on your preferences. [![Open-Source Software][OSS Icon]](https://github.com/dustinrue/ControlPlane) ![Freeware][Freeware Icon]
 * [DNS Heaven](https://github.com/greenboxal/dns-heaven) - Unifies macOS DNS so applications using glibc can resolve DNS with the native stack. Mainly for use with VPNs. [![Open-Source Software][OSS Icon]](https://github.com/greenboxal/dns-heaven) ![Freeware][Freeware Icon]
+* [DevUtils.app](https://devutils.com/) - All-in-one Toolbox for Developers. Format/Validate JSON, encode/decode Base64, convert timestamps, debug JWT… with just one click! Native macOS app and works offline. [![Open-Source Software][OSS Icon]](https://github.com/DevUtilsApp/DevUtils-app) ![Freeware][Freeware Icon] [![App Store][app-store Icon]](https://apps.apple.com/us/app/devutils-app/id1533756032)
 * [Etcher](https://www.balena.io/etcher/) - Flash OS images to SD cards & USB drives, safely and easily. [![Open-Source Software][OSS Icon]](https://github.com/balena-io/etcher) ![Freeware][Freeware Icon]
 * [Google Assistant (Unofficial Desktop Client)](https://github.com/Melvin-Abraham/Google-Assistant-Unofficial-Desktop-Client) - A cross-platform desktop client for Google Assistant based on Google Assistant SDK. ![Open-Source Software][OSS Icon] ![Freeware][Freeware Icon]
 * [Equinox](https://github.com/rlxone/Equinox) - Create dynamic wallpapers for macOS. ![Open-Source Software][OSS Icon] ![Freeware][Freeware Icon] [![App Store][app-store Icon]](https://apps.apple.com/us/app/equinox-create-wallpaper/id1591510203)