# Email Testing Dev

Ranked by the Vioscale composite score: a confidence-weighted blend of independent signals, not user reviews.

| # | Software | Score | Confidence | Vendor |
|--:|---|--:|---|---|
| 1 | [Testmail.app](https://www.vioscale.ai/software/testmail-app) | 82.2 | 42% (low) | - |
| 2 | [Maildev](https://www.vioscale.ai/software/maildev) | 63.8 | 24% (low) | - |
| 3 | [Mailosaur](https://www.vioscale.ai/software/mailosaur) | 60.5 | 55% (medium) | - |
| 4 | [Email on Acid](https://www.vioscale.ai/software/email-on-acid) | 58.3 | 66% (medium) | - |
| 5 | [GreenMail](https://www.vioscale.ai/software/greenmail) | 58.2 | 31% (low) | - |
| 6 | [MailSlurp](https://www.vioscale.ai/software/mailslurp) | 49.5 | 54% (medium) | - |
| 7 | [MailHog](https://www.vioscale.ai/software/mailhog) | 42.8 | 19% (low) | - |
| 8 | [Litmus](https://www.vioscale.ai/software/litmus) | 40.4 | 12% (low) | - |
| 9 | [Mailpit](https://www.vioscale.ai/software/mailpit) | 39.6 | 23% (low) | - |

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*Source: Vioscale (https://www.vioscale.ai/categories/email-testing-dev).*