Brevo (Sendinblue) vs Buttondown: Which Is Better in 2026?
Last updated March 2026
Quick Verdict
Brevo (Sendinblue) is best for: Businesses with large contact lists who want multi-channel marketing on a budget. Buttondown is best for: Writers and developers who want a simple, no-frills newsletter tool.
Feature Comparison
| Feature | Brevo (Sendinblue) | Buttondown |
|---|---|---|
| Overall Rating | 4.5 ★ | 4.5 ★ |
| Starting Price | $25/mo | $9/mo |
| Free Plan | ✓ | ✓ |
| Email Automation | ✓ | ✓ |
| A/B Testing | ✓ | ✕ |
| Landing Pages | ✓ | ✕ |
| SMS Marketing | ✓ | ✕ |
| Audience Segmentation | ✓ | ✓ |
| Email Templates | ✓ | ✕ |
| API Access | ✓ | ✓ |
| Free Plan | ✓ | ✓ |
| Campaign Analytics | ✓ | ✓ |
| Integrations | ✓ | ✓ |
| Deliverability Tools | ✓ | ✕ |
| AI Features | ✓ | ✕ |
Pricing
Brevo (Sendinblue)
Free plan available (300 emails/day). Starter from $25/mo.
- Monthly
- $25/mo
- Free plan
- Yes
- Free limits
- 300 emails/day, unlimited contacts
Buttondown
Free plan available (100 subscribers). Basic from $9/mo.
- Monthly
- $9/mo
- Free plan
- Yes
- Free limits
- 100 subscribers
Brevo (Sendinblue) vs Buttondown: In-Depth Comparison
Brevo (Sendinblue) and Buttondownare both popular options in this category, but they serve different needs. Here's a breakdown based on their key strengths.
Brevo (Sendinblue): Brevo (formerly Sendinblue) is an all-in-one marketing platform offering email campaigns, SMS, WhatsApp, chat, and CRM. It stands out by pricing based on email volume rather than contacts, making it cost-effective for large lists.
Buttondown: Buttondown is a minimalist newsletter tool for writers and developers. It supports Markdown, offers a simple API, and focuses on the writing experience without the bloat of full marketing suites. It is popular among indie creators and developers.
When it comes to pricing, Brevo (Sendinblue) free plan available (300 emails/day). starter from $25/mo., while Buttondown free plan available (100 subscribers). basic from $9/mo..
Pros & Cons
Brevo (Sendinblue)
- ✓Pricing based on emails sent, not contacts — great for large lists
- ✓Multi-channel: email, SMS, WhatsApp, chat
- ✓Built-in CRM and transactional email
- ✓Generous free plan with unlimited contacts
- ✗Email builder less polished than Mailchimp
- ✗Brevo branding on free plan
- ✗Automation can feel complex to set up
Buttondown
- ✓Clean, minimal interface focused on writing
- ✓Markdown support and excellent API
- ✓Paid newsletter support built-in
- ✓Privacy-focused — no tracking pixels by default
- ✗Very minimal — no visual email builder
- ✗No landing pages or marketing tools
- ✗Small team, fewer integrations
Which Should You Choose?
Choose Brevo (Sendinblue) if…
Businesses with large contact lists who want multi-channel marketing on a budget.
- ✓Pricing based on emails sent, not contacts — great for large lists
- ✓Multi-channel: email, SMS, WhatsApp, chat
Choose Buttondown if…
Writers and developers who want a simple, no-frills newsletter tool.
- ✓Clean, minimal interface focused on writing
- ✓Markdown support and excellent API