About

Who makes Margin. One person.

Margin is built by Mitch Ring, a physics student at the University of Illinois Urbana-Champaign. It is independent and unfunded: there is no team and there are no investors.

Last updated · 26 October 2026

Who

I'm a physics major at Illinois. I grew tired of opening five tabs every morning to figure out what was due. Margin is what I built instead.

Mitch Ring, founder · Mitch Ring on LinkedIn (opens in a new tab)

One person answers every email. The build log is the running record of what changed and why.

What Margin is

Margin makes a free Chrome extension that puts college students' upcoming Canvas assignments and calendar due dates into their own Todoist, and is building a small e-paper desk dashboard that shows them.

The extension is free, and the next week stays current at no cost. The Margin Pass keeps the whole term: $9.99 a semester, bought inside the extension, and it does not renew. The desk dashboard cannot be bought yet. The details are on the pricing page.

What it is not

The business

Margin is run by Mitch Ring as a sole proprietorship trading as Marginalia. The terms are governed by the laws of the State of Illinois. Lemon Squeezy, the merchant of record, sells the Margin Pass and handles its payments.

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