Stack
Buttondown
A small, developer-friendly newsletter service where you write in markdown and pay for active subscribers.
What it actually does
Buttondown is a lightweight newsletter tool. You write in markdown, it hosts an archive and handles a custom sending domain, and it bills only for active subscribers rather than every address on the list.
It is built with developers in mind: a real API, markdown-first composing, and a deliberately simple core. The base price is $9/mo for 1,000 subscribers, less than half of Kit or Beehiiv for the same size list.
The catch is a-la-carte add-ons. Tagging, paid subscriptions, analytics, and comments each add $9/mo, while automations, multiple newsletters, and custom-domain archives each add $29/mo, so a full-featured setup can climb well past the headline price. There is no transactional API.
Buttondown vs its main rivals
The tools people actually weigh against Buttondown: Substack, Ghost, Beehiiv. Same criteria for every column, including where Buttondown loses.
| Buttondown |  Substack |  Ghost |  Beehiiv | |
|---|---|---|---|---|
Pricing & access | ||||
| Free tier | Yes100 subs | YesUnlimited (10% cut) | NoSelf-host only | Yes2,500 subs |
| Starting price | $9/mo | Free (10% cut) | $9/mo | $43/mo |
Audience & sending | ||||
| Bills active subscribers only | YesYes | YesFree | YesYes | NoBy tier |
| Markdown editor | YesYes | YesRich text | YesYes | YesYes |
| Automations | Yes$29/mo add-on | NoNo | YesLimited | YesScale tier |
Monetization | ||||
| Paid subscriptions | YesStripe only | Yes10% cut | Yes0% cut | Yes0% cut |
| Built-in growth / referral tools | NoMinimal | YesNetwork | NoNo | YesReferrals |
Developer & API | ||||
| REST API | Free | No | Free | Paid |
| Webhooks | Free | No | Free | Paid |
Publishing | ||||
| Hosted archive / website | YesYes | YesYes | YesFull CMS | YesWebsite builder |
| Custom domain | YesFree plan | Yes$50 one-time | YesYes | YesFree plan |
- One of the cheapest paid newsletter tools here at $9/mo for 1,000 subscribers
- Bills only active subscribers, so dead emails do not inflate the invoice
- Markdown-first writing and a real developer API
- Add-ons stack fast: automations alone add $29/mo, turning $9 into $38
- No transactional API, newsletters only
- Minimal built-in growth or referral tooling next to Substack and Beehiiv
Pay less for it
5 ways foundIncludes the markdown editor, hosted archive, and a custom sending domain at no cost.
The $9 base covers sending; add tagging, analytics, or automations only when you need them, since each stacks $9 to $29/mo.
Registered 501(c)(3) nonprofits get 50% off.
Because billing counts active subscribers, pruning unengaged addresses keeps you in a lower band.
Beehiiv Launch — Free up to 2,500 subscribers with unlimited sends; a better free ceiling if you do not need Buttondown's markdown/API workflow.
StackTracker tracks what you actually pay for Buttondown and every other tool, flags overpayment, and shows the dollars you would save by switching.
Is it the right tool for you
- You want a simple product newsletter for under $10/mo
- You prefer writing in markdown and want an API
- Your list is small enough to run on the 100-subscriber free tier while starting
- You need many features and the add-ons would stack past $30/mo → use Beehiiv or Kit (flat pricing)
- You want built-in audience growth and discovery → use Beehiiv or Substack
Track what Buttondown and the rest of your stack cost
StackTracker adds up every subscription, plus your hours, so you see the real number.
Prices and limits last verified 2026-07-20.