Git Sketch Plugin - Version control for designers
Xed - A text editor forked from Pluma and Gedit. Xed is the default text editor of Linux Mint.
Anima App - Design, get feedback, convert to code, publish, iterate.
Caret Editor - Caret Editor is an editing tool for Chrome OS that is used for editing texts or codes.
Marvel for Sketch - Sync, play and record prototypes in Sketch!
Nova Code Editor - Nova Code Editor is software that is used for writing and editing codes.