Litmus vs Mailpit
Litmus
litmus.com
Mailpit
mailpit.axllent.orgSide by side
| Figure | Litmus | Mailpit |
|---|---|---|
| Price from | $79/mo | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 7 | 1 |
| Spec score · Email Testing Software | 8.9 (#4) | 8.6 (#6) |
| Founded | 2005 | 2022 |
| Integrations | Integrations cover ESPs, code editors, Slack, Trello, Dropbox, Google Drive, OneDrive, Salesforce Marketing Cloud, Marketo, and other martech tools. | The project says Mailpit is used by projects including Laravel, DDEV, Quarkus, and Saleor, and in CI/CD pipelines. |
| Intended users | Litmus says it serves marketers and email teams seeking to build, test, analyze, and improve email campaigns. | Mailpit is aimed at developers testing email functionality without sending messages to real email addresses. |
| Security | The Validity Trust Center lists Litmus security materials including its Security White Paper and SOC 2 Type 2 report. | The web UI supports optional HTTPS and basic authentication, while SMTP can be configured with authentication and TLS. |
| Support | Litmus directs customers to its Help Center and support team for product guidance and assistance. | The troubleshooting guide invites users to raise an issue after checking existing issues first. |
Plans
Litmus
- Litmus Basic$99 a month
- Litmus Plus$199 a month
- Litmus Core$500 a month
- Litmus Basic yearly$79 a month
- Litmus Basic monthly$99 a month
- Litmus Core yearly$417 a month
- Litmus Core monthly$500 a month
In their own words
Litmus
Litmus is an email workflow platform for building, testing, monitoring, and analyzing campaigns. Teams can preview emails across more than 100 email clients and devices, while Litmus Test automates pre-send quality checks. Its extension can validate links, images, and tracking. Email Guardian monitors deployed emails around the clock and alerts users to issues such as failing links and broken renders. Litmus Builder offers code and visual editors; emails can start from templates, be created from scratch, or be imported from cloud storage. Listed integrations include Salesforce Marketing Cloud, Mailchimp, Marketo, Eloqua, HubSpot, Klaviyo, Slack, Trello, and cloud storage. Some integrations require Plus or Enterprise, and ESP Sync availability depends on the plan and supported provider. REST APIs are available for Email Previews and Email Analytics, with access evaluated case by case. Litmus offers web, extension, and API access. Monthly prices listed are $99 a month for Basic, $199 a month for Plus, and $500 a month for Core. There is no free plan, but a 7-day trial is available.
Mailpit
Mailpit is a free, open-source tool for checking email content and SMTP delivery without sending messages to real addresses. It runs a local SMTP server alongside a web interface and REST API, and is available for Linux, macOS, Windows, Docker, and self-hosted deployment. The interface displays formatted HTML, source, text, headers, raw messages, and MIME attachments with image thumbnails. Checks include HTML and link testing, message screenshots, and optional SpamAssassin scoring. The API can access, search, send, delete, tag, and release messages; messages can also be relayed, forwarded, or used to trigger configurable SMTP errors. Mailpit can send message-summary webhooks and offers a Cypress package for integration tests. The web UI and API can use HTTPS and basic authentication; SMTP supports optional authentication and TLS. By default, SMTP listens on port 1025 without encryption or authentication. Mailpit keeps the most recent 500 messages by default.