Deck - A multi-timeline viewer for GitHub repository events

Nifty - Manage projects, work, and communications in one place.

weekend - The better-chances way to push your side project

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

Chronologies.io - Your Memories, Your Story, Your Timeline

Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.