Emailens vs MailCatcher
Emailens
emailens.devMailCatcher
mailcatcher.meSide by side
| Figure | Emailens | MailCatcher |
|---|---|---|
| Price from | $9/mo | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | Yes | — |
| Web | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 7 | 0 |
| Spec score · Email Testing Software | 9.4 (#1) | 7.2 (#22) |
| Integrations | The product offers a web app, REST API, MCP server, GitHub Action, and standalone @emailens/engine package. | The site gives setup instructions for Rails, PHP, and Django applications. |
| Purpose | Emailens previews and checks how HTML emails render across 21 email clients. | MailCatcher runs an SMTP server that catches messages and displays them in a web interface. |
| Support | The security page says vulnerability reports are acknowledged within 48 business hours. | The maker asks users to file an issue and include the complete message when reporting processing problems. |
Plans
Emailens
- FreeFree
- FreeFree
- Dev$9 a month
- Dev$9 a month
- Pro$19 a month
- Pro$19 a month
- Team$49 a month
In their own words
Emailens
Emailens previews HTML email rendering across 21 email clients and checks compatibility across 298 CSS and HTML features. It scores compatibility from 0 to 100 per client and provides rendered screenshots and simulated dark mode variants. Inputs include HTML, React Email JSX, MJML, and Maizzle. Developers can use a web app, REST API, MCP server, GitHub Action, or standalone @emailens/engine package. Campaign HTML can be imported from a view-in-browser link; Mailchimp URL import is marked verified, while other listed platforms require pasted HTML. Emailens discusses merge tags for Mailchimp, Klaviyo, HubSpot, Braze, and Salesforce Marketing Cloud. The free plan costs nothing and includes 30 simulated previews per day, all 21 clients, one monitored domain, seven-day audit history, and three AI Fixes. Paid plans are Dev at $9 a month, Pro at $19 a month, and Team at $49 a month. Emailens says unsaved previews are processed in memory and authenticated previews and screenshots are purged after 30 days.
MailCatcher
MailCatcher has no write-up on Specifiction yet; its figures are above.