Todoist - Todoist is a to-do list that helps you get organized, at work and in life.
Selenium - Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily, it is for automating web applications for testing purposes, but is certainly not limited to just that.
TaskPaper - Plain text to-do lists for Mac
sitebot.ai - The easiest way to monitor that your website is working as it should. Sitebot uses a real browser to test your site and login automatically.
Magnetic - Magnetic is an all-in-one agency management software built for productivity.
Ghost Inspector - Easily create automated browser tests for your websites and web apps. Ensure everything works and looks the way it should. No coding required. 14 day free trial!