plop.email vs Mailosaur
Both tools help you test emails programmatically. Here's how they compare for different use cases.
Visit Mailosaurplop.email
14-day free trial
From $5/mo
Mailosaur
14-day trial
From $9/mo
Feature Comparison
Core Features
| Feature | plop.email | Mailosaur |
|---|---|---|
| Programmable inboxes | ||
| REST API | ||
| Plus-addressing (tags) | ||
| Webhooks | ||
| SMS testing |
Developer Experience
| Feature | plop.email | Mailosaur |
|---|---|---|
| Open source | Winner | |
| Self-hosting option | Winner | |
| Official SDKs | REST only | Multiple languages |
| Playwright/Cypress guides |
Pricing
| Feature | plop.email | Mailosaur |
|---|---|---|
| Free trial | 14-day trial | 14-day trial |
| Transparent pricing | Winner | Contact sales |
| Pay-as-you-go | Winner |
The Verdict
Mailosaur is a mature, feature-rich platform with SMS testing and visual email previews. plop.email is simpler, open-source, and focused purely on email API testing with transparent pricing.
Choose plop.email if:
- You want open-source with self-hosting option
- You need simple, transparent pricing
- You only need email testing (not SMS)
- You prefer a lightweight, focused tool
Choose Mailosaur if:
- You need SMS testing alongside email
- You want visual email rendering previews
- You need email client previews (Outlook, Gmail)
- Enterprise compliance is a priority
plop.email Advantages
Open Source
plop.email is AGPL-3.0 licensed. Audit the code, self-host, or contribute.
Simple Pricing
Transparent plans starting at $5/mo. No sales calls required.
Focused on Testing
Built specifically for test automation, not marketing email.
Mailosaur Advantages
SMS Testing
Test SMS alongside email in the same workflow.
Email Previews
See how emails render across different clients and devices.
Mature Ecosystem
Official SDKs for many languages and frameworks.
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