EmaiLens
Emailens is an email QA and compatibility testing platform built for developers, marketing teams, designers and growth teams. It catches rendering bugs, broken layouts, and HTML/CSS quirks across major email clients before campaigns go out. With native support for React Email, MJML and Maizzle, it lets teams automate email validation, preview dynamic templates instantly, and protect inbox deliverability; replacing outdated testing suites with fast, reliable pre-send quality assurance.
EmaiLens
Emailens is an email QA and compatibility testing platform built for developers, marketing teams, designers and growth teams. It catches rendering bugs, broken layouts, and HTML/CSS quirks across major email clients before campaigns go out. With native support for React Email, MJML and Maizzle, it lets teams automate email validation, preview dynamic templates instantly, and protect inbox deliverability; replacing outdated testing suites with fast, reliable pre-send quality assurance.
Ranked #5698 on TrustMRR
6 active subscriptions
Philippe Kam73 followers on 𝕏
FranceRevenue is verified with
Polar API key.Last updated: Oct 23, 2026, 06:02 PM
Emailens gives developers, marketing and growth teams modern, fast email quality assurance. It automatically detects broken layouts, rendering bugs, and client incompatibilities across major inboxes before launch, replacing clunky legacy testing suites with a streamlined, reliable pre-send workflow.
• Inconsistent Inboxes: Stops Outlook, Gmail, and Apple Mail from silently breaking designs. • Slow Manual QA: Eliminates tedious personal test sends and long screenshot queues. • Lost Conversions: Catches unclosed tags, broken fallbacks, and rendering flaws that erode brand credibility and clicks.
Pricing
Free: $0/mo, Dev: $9/mo, Pro: $19/mo
Team size
1 person
Funding
Bootstrapped
Domain Rating
emailens.dev
Ahrefs Domain Rating measures backlink profile strength on a 0 to 100 logarithmic scale.
Tech stack
Additional info
Built with open standards. Core testing components are open source at https://github.com/emailens, giving teams full transparency into rendering rules without vendor lock-in, paired with a reliable cloud workflow.
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emailens.devProduct updates
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