FOS-0025
ACTIVE verified 2026-09-07
Buttondown
Buttondown for open source (50% discount for non-profit projects)
What you get
Half price on every Buttondown newsletter plan for open source projects that are registered non-profits. Buttondown is a non-tracking email newsletter service with an API.
Applies to
the project , not individual maintainers
Requirements
no stated requirements
How to apply
Sign up, then contact Buttondown support with proof of the project's non-profit status; the offer page publishes no form.
Provenance
Confirmed against buttondown.com/use-cases/open-source on 2026-09-07, matched anchor “If your open source project is a registered non-profit, we offer a 50% discount on all plans”.