US · United States
Free (up to 100 subs) · Paid from $9/mo
Buttondown
Replaces: Mailchimp, Substack
Minimalist, Markdown-first email newsletter tool with privacy-respecting defaults and zero bloat.
The Catch (read before switching): The free tier caps at 100 subscribers and omits custom domains and API automation until you upgrade.
Hard Constraints Checklist
- Open SourceNo
- Self-HostableNo
- Permanent Free TierYes
- Headquartered Outside USNo
- Zero Tracking / E2EEYes