Litmus shows you exactly how your designs look on every platform, across every popular web browser. (And the not-so-popular ones.)
Cost / License
- Paid
- Proprietary
Platforms
- Online
United Kingdom
SendLint AlternativesEmail Marketing Services and other similar apps like SendLint
Sites and apps similar to SendLint include Litmus. Other options are Email on Acid, Unspam.email, MailSlurp: Developer Email API and Inbox Pirates. In total there are eight Email Marketing Services like SendLint.
Alternatives list
- 17 Litmus alternatives
53 Email on Acid alternativesCreate a virtual simulation of your email in the top 15, most used email clients! Our Email Acid Test will analyze your code and identify exactly which HTML tags and/or CSS properties are not supported by each email client.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Online
United States
Unspam.email is an online spam tester tool for emails. It helps to improve the deliverability and reputation of your email campaigns.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Global
Create email addresses on demand. Send and receive real emails and attachments from code. Rest API and developer kits available.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
- Ruby
- C#
- Laravel
- JavaScript
- Software as a Service (SaaS)
- PHP
- Java
- Node.JS
Inbox Pirates lets you preview, test, and analyze your email on various devices, and popular email clients. It also offers subject line and email content testing to improve email open rates.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
- Google Chrome
- United Kingdom
+1
MailMoxie is an advanced Email Governance platform designed for the 2026 inbox landscape. It serves as a diagnostic layer for your marketing stack, ensuring every email you send is technically perfect and accessible to all.
Cost / License
- Freemium
- Proprietary
Application type
Platforms
- Online
- United States
+2
Preflight helps companies prevent sensitive data from leaking into AI tools, monitoring, blocking, and redacting prompts in real time, while generating compliance audit trails.
Cost / License
- Paid
- Proprietary
Platforms
- Online
- Software as a Service (SaaS)
Canada
AI-powered email QA tool that catches typos, broken links, layout issues, and tone problems before send at a fraction of Litmus or Email on Acid's cost.
Cost / License
- Paid
- Proprietary
Application type
Platforms
- Online
- United Kingdom
+4
