Best Email on Acid Alternatives in 2025: Find Your Perfect Email Testing Tool

June 10, 2025

Email on Acid has been a popular choice for email testing and preview across multiple email clients, but it's not the only option available. If you're looking for alternatives that offer better features, more affordable pricing, or a different approach, we've got you covered. Here's our honest comparison of the top Email on Acid alternatives.

What is Email on Acid?

Email on Acid is a comprehensive email testing platform that offers email preview testing across 100+ devices and email clients, including dark mode testing. It provides tools for testing email rendering, accessibility, and deliverability with features like Campaign Precheck and analytics.

However, Email on Acid has some limitations that might make you look elsewhere:

High pricing starting at $74/month for basic features
Complex feature segmentation across different plans
No AI-powered analysis or recommendations
Limited accessibility testing compared to modern standards
Requires technical setup for advanced features
No personal email agent functionality
Annual billing required for best pricing
Separate pricing for different products (Campaign Precheck, Email Testing, etc.)

Top Email on Acid Alternatives

MailMoxie - Our Top Pick

Recommended

MailMoxie revolutionizes email testing with AI-powered analysis that actually understands email marketing. Instead of just showing you how emails render, MailMoxie provides actionable recommendations to improve your emails and boost deliverability.

Key Features:

AI-Powered Analysis: Your personal email expert that understands marketing and transactional emails
Unlimited Email Tests: No monthly limits on testing your campaigns
50+ Spam Trigger Testing: Comprehensive analysis of spam triggers and deliverability issues
Advanced Accessibility Testing: WCAG 2.1 AA compliance testing for inclusive email marketing
Subject Line Optimization: AI-powered suggestions to improve open rates
Instant Results: Get detailed reports in seconds, not minutes
Personal Agent Email: Send emails to your own MailMoxie agent address
Simple Pricing: One plan, one price, no complex tiers or feature segmentation

Pricing:

Freeforever

Unlimited email tests, no credit card required

Email on Acid

Email on Acid offers comprehensive email testing with preview across 100+ devices and email clients, including dark mode testing and accessibility features.

Key Features:

Email preview testing across 100+ devices and clients
Dark mode testing capabilities
Campaign Precheck workflow
Email analytics and insights
Accessibility testing (basic)
Image validation tools
Inbox display testing
API integration capabilities
SOC 2 type 1 compliant security

Pricing:

Campaign Precheck:$74/month

Email Testing:$74/month

Email Analytics:$74/month

Email Accessibility:$74/month

Annual billing required for best pricing • Separate pricing for each product

Other Alternatives

Litmus

Email testing and preview across multiple email clients

Starting at $99/month

PutsMail

Free email testing tool by Litmus

Free (limited features)

Mail Tester

Email deliverability and spam testing

Starting at $29/month

Why Choose MailMoxie Over Email on Acid?

Completely Free

MailMoxie offers unlimited email tests completely free, while Email on Acid charges $74/month for each individual product (Campaign Precheck, Email Testing, Analytics, etc.).

AI-Powered Insights

While Email on Acid shows you how emails render, MailMoxie provides AI-powered recommendations that actually help you improve your emails and boost deliverability.

Simpler Product Structure

MailMoxie has one comprehensive platform, while Email on Acid segments features across multiple products, each requiring separate subscriptions.

Advanced Accessibility Testing

MailMoxie includes comprehensive WCAG 2.1 AA compliance testing, ensuring your emails reach all your audience members, including those with disabilities.

Final Verdict

While Email on Acid offers solid email preview testing features, MailMoxie provides a more comprehensive, AI-powered solution that's completely free and doesn't require multiple product subscriptions.

If you're looking for actionable insights to improve your email performance rather than just rendering previews, MailMoxie is the clear winner. Plus, with no credit card required and no time limits, there's no risk in trying it out.

Ready to Upgrade Your Email Testing?

No credit card required • Free forever

Disclosure: This comparison is based on publicly available information and our own testing. Pricing and features may change. We recommend trying multiple tools to find the best fit for your specific needs.