Litmus vs Mailinator
Litmus
litmus.com
Mailinator
mailinator.comSide by side
| Figure | Litmus | Mailinator |
|---|---|---|
| Price from | $79/mo | $79/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Plans published | 7 | 13 |
| Spec score · Email Testing Software | 8.9 (#4) | 9.0 (#3) |
| Documentation | The help center documents previews, client differences, integrations, browser support, accessibility, spam testing, security, and troubleshooting. | The January 21, 2026 documentation overhaul added reorganized navigation, API references, Postman material and product guides. |
| Founded | 2005 | 2003 |
| Headquarters | Boston, Massachusetts, United States | Ann Arbor, Michigan, USA |
| Integrations | Integrations cover ESPs, code editors, Slack, Trello, Dropbox, Google Drive, OneDrive, Salesforce Marketing Cloud, Marketo, and other martech tools. | Inbound webhooks can accept HTTP POST messages from sources such as alert systems, Zapier, or Twilio and apply configured rules. |
| Licence | Litmus is proprietary hosted software; its terms describe subscription services and copyright-protected software and content. | The official Python SDK repository is released under the MIT license; Mailinator itself is delivered as a hosted service. |
| Rating on Chrome Web Store | 4.5 out of 5 from 40 ratings | 5.0 out of 5 from 1 rating |
| Rating on GetApp | 4.6 out of 5 from 53 reviews | 4.7 out of 5 from 142 reviews |
| Rating on TrustRadius | 8.6 out of 10 from 652 reviews and ratings | 8 out of 10 from 2 reviews |
| SDKs | The API documentation lists partner integrations using C#, Visual Basic, PHP, Ruby, Python, Perl, and Java, but does not present an official SDK package. | Official client libraries are available for Java, JavaScript, C#, Go, Ruby and Python. |
| Security | The Validity Trust Center lists Litmus security materials including its Security White Paper and SOC 2 Type 2 report. | Mailinator says web traffic is served over HTTPS, private system email bodies are encrypted at rest, and public system email is not encrypted. |
| Support | Litmus directs customers to its Help Center and support team for product guidance and assistance. | 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 | Litmus is a web-based email development and optimization platform for building, previewing, testing, tracking, and reviewing campaigns. | Mailinator provides public and private inboxes for automated email and SMS workflow testing, including sign-ups, 2FA and password resets. |
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
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
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.
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.