MTG Swiss is a lightweight tool for organizing Swiss-style Magic: The Gathering tournaments. It helps organizers set up a bracket, manage player registration, and coordinate matches through a straightforward online interface. Players can join an existing tournament using a six-character code, choosing to participate or spectate, while organizers can create new events and configure their settings.

Tournament options include automatic or custom round counts, with automatic calculations based on the number of registered players. Organizers can select Best of 1, Best of 3, or Best of 5 match formats and set a round time limit; countdowns are synchronized for all players. The platform also provides an admin panel that organizers can access using their chosen identifier and passcode, including when they are playing in the event themselves.

MTG Swiss offers configurable session lifespans, after which tournament data is automatically pruned and deleted. Designed for occasions such as office game nights, it focuses on fast, practical Swiss pairings and essential tournament administration.