Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency.
JIRA is the tracker for teams planning & building great products. Millions choose JIRA to capture & organize issues, assign work, & follow team activity.
Stripe is an online payment processing tool for internet businesses. Stripe handles everything, including storing cards, subscriptions, and direct payouts to their bank account. Meticulously designed APIs and functionality help users create the best possible product for their users.
Twilio brings to developers a powerful API for phone services which allows make and receive phone calls, and send and receive text messages. Twilio allows programmers to easily integrate various communication methods and to use existing web development skills, existing code, existing servers.