I am not a professional software developer, but I do small open source projects from time to time. Mostly they are browser extensions and scripts.
Extension generates the string of specified length or calculates the length of specified string
Extension opens JIRA issue in new tab, according to key code inserted by user
Extension opens Fisheye Commit Graph view of specified repository in new tab
Extension generates data for checking textarea field for different injections
Scripts Bash Python
Collection of helper scripts on Python and Bash to automate some daily jobs