Emailens vs Mailinator
Emailens
emailens.dev
Mailinator
mailinator.comSide by side
| Figure | Emailens | Mailinator |
|---|---|---|
| Price from | $9/mo | $79/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 7 | 13 |
| Spec score · Email Testing Software | 9.4 (#1) | 9.0 (#3) |
| API authentication | Authenticated API calls use an ek_live bearer token or x-api-key header. | API requests authenticate with a team token supplied in an Authorization header or token query parameter. |
| Integrations | The product offers a web app, REST API, MCP server, GitHub Action, and standalone @emailens/engine package. | Inbound webhooks can accept HTTP POST messages from sources such as alert systems, Zapier, or Twilio and apply configured rules. |
| Purpose | Emailens previews and checks how HTML emails render across 21 email clients. | Mailinator provides temporary inboxes and email and SMS workflow testing for developers, QA teams, and businesses. |
| Security | The security page says unsaved previews are processed in memory and authenticated previews and screenshots are automatically purged after 30 days. | Mailinator says web traffic is served over HTTPS, private system email bodies are encrypted at rest, and public system email is not encrypted. |
| Support | The security page says vulnerability reports are acknowledged within 48 business hours. | Documentation is available 24/7/365; the support page says public issue emails are usually answered within 24–72 hours and subscribers receive priority support. |
| What it does | Emailens previews and audits HTML email rendering across 21 email clients, producing compatibility scores, warnings, dark-mode variants and screenshots. | Mailinator provides public and private inboxes for automated email and SMS workflow testing, including sign-ups, 2FA and password resets. |
Plans
Emailens
- FreeFree
- FreeFree
- Dev$9 a month
- Dev$9 a month
- Pro$19 a month
- Pro$19 a month
- Team$49 a month
Mailinator
- Public - FreeFree
- Public - FreeFree
- Verified ProFree
- Verified ProFree
- Business$79 a month
- Business (annual)$79 a month
- Business$99 a month
- Business Plus$159 a month
- Business Plus (annual)$159 a month
- Business Plus$199 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.
Mailinator
Mailinator provides temporary inboxes and tools for testing email and SMS workflows. Developers, QA teams, and businesses can use it to check delivery for OTP, MFA, onboarding, password recovery, and other email processes at scale. Paid subscriptions include private testing domains, where messages can arrive at any address without creating an inbox first. The REST API retrieves inboxes, messages, and SMS, injects messages, and connects with CI/CD pipelines. Inbound webhooks can accept HTTP POST messages from sources such as alert systems, Zapier, or Twilio, then apply configured rules. SMS can be routed to an inbox or API for automated OTP and 2FA testing. The free public inboxes are readable by anyone, and messages typically auto-delete after several hours. Mailinator is receive-only: it cannot send email or fill out forms. The Public - Free plan is free to use without sign-up. Business costs $79 a month billed yearly; a two-week Business trial is listed. Other plans include Verified Pro at free, Business Plus at $159 a month billed yearly, and Enterprise at a price agreed with the maker with custom pricing.