Mailgun vs Sendinblue: Which is Better in 2026?
Choosing between Mailgun and Sendinblue comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Bottom line: Mailgun is our overall pick for email workflows. Pick Sendinblue if you need email marketing.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Mailgun
Send, parse, and validate emails with a reliable developer API
Best for you if:
- • You need email features specifically
- • Mailgun is an email API service for developers sending transactional email
- • It handles email delivery, validation, and tracking at scale
Sendinblue
One AI-powered customer platform for all your marketing and sales needs.
Best for you if:
- • You need email marketing features specifically
- • All-in-one platform for multichannel marketing and sales.
- • Leverages AI for campaign optimization and customer engagement.
| At a Glance |  Mailgun |  Sendinblue |
|---|---|---|
Starts at | $35/moFoundation | Contact us/moStarter |
Best For | Email Marketing | |
Rating | - | - |
Choose Mailgun or Sendinblue?
Choose Mailgun if
Send, parse, and validate emails with a reliable developer API
- Powerful API
- Email validation
- Good logs
- Your work is email-shaped, not email marketing-shaped
Choose Sendinblue if
One AI-powered customer platform for all your marketing and sales needs.
- Comprehensive all-in-one platform for marketing and sales
- AI-powered features enhance campaign effectiveness and efficiency
- Multichannel engagement options (email, SMS, WhatsApp, etc.)
- Your work is email marketing-shaped, not email-shaped
| Feature | Mailgun | Sendinblue |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| User Rating | ★4.2/5 518 reviews | ★4.5/5 2,893 reviews |
| Categories | EmailDeveloper Tools | Email MarketingMarketing Automation |
In-Depth Analysis
Mailgun
Send, parse, and validate emails with a reliable developer API
Strengths
- +Powerful API
- +Email validation
- +Good logs
Weaknesses
- -Complex pricing
- -Support can be slow
Key features
Sendinblue
One AI-powered customer platform for all your marketing and sales needs.
Strengths
- +Comprehensive all-in-one platform for marketing and sales
- +AI-powered features enhance campaign effectiveness and efficiency
- +Multichannel engagement options (email, SMS, WhatsApp, etc.)
- +User-friendly interface with drag-and-drop editor and templates
- +Scalable for businesses of all sizes
Weaknesses
- -No specific cons mentioned in the provided text.
Key features
Pricing: Mailgun vs Sendinblue
| Plan | Mailgun | Sendinblue |
|---|---|---|
| Tier 1 | Free Free | Free Free |
| Tier 2 | $35 Foundation | Contact us Starter |
| Tier 3 | $90 Scale | Contact us Standard |
| Tier 4 | Custom Enterprise | Contact us Professional |
| Tier 5 | N/A | Custom price Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on Mailgun pricing and Sendinblue pricing.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Mailgun
Want the highest-rated option?
Neither has user reviews yet.
Go with: Mailgun
Value user reviews?
Neither has user reviews yet.
Go with: Mailgun
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Mailgun is a email tool. Sendinblue is in email marketing. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Mailgun
- Free tier available
- Our pick for this comparison
Sendinblue
- Higher user rating: 4.5/5 vs 4.2/5
- Larger review base (2,893 reviews)
- Better fit for email marketing
The Bottom Line
Mailgun is our pick.
Frequently Asked Questions
Is Mailgun or Sendinblue better?
Mailgun is rated in our evaluation. Both are freemium.
What are Mailgun and Sendinblue used for?
Mailgun: Send, parse, and validate emails with a reliable developer API. Sendinblue: One AI-powered customer platform for all your marketing and sales needs..
What does Mailgun cost vs Sendinblue?
Mailgun is freemium (free tier + paid plans). Sendinblue is freemium (free tier + paid plans). Visit their websites for detailed pricing.