TrustRadius: an HG Insights company

What is Keplars?

Keplars is an email infrastructure platform that enables businesses to build, send, manage, and monitor transactional and marketing emails from a single platform. It combines email APIs, SMTP relay, marketing campaigns, automations, and a modern visual email editor to simplify the entire email lifecycle.


The platform supports OAuth and custom sending domains, Mail From configuration, along with mailbox warmup and real-time delivery tracking to help improve email deliverability. Organizations can create responsive email templates using the built-in drag-and-drop editor or import HTML templates from tools such as Figma and Canva. Imported assets are automatically processed, with images uploaded to a CDN and HTML prepared for production use.


Keplars also provides REST APIs, webhooks, SDKs for multiple programming languages, sandbox testing, audience management, campaign scheduling, and workflow automation. Usage-based pricing, detailed delivery insights, and developer-friendly integrations make the platform suitable for startups, SaaS companies, e-commerce businesses, and enterprises looking to manage both transactional and marketing email workflows from a unified platform.

Screenshots

Screenshot of Email API, SMTP, Webhooks, SDKs in 11 languages
Screenshot of Multi-Region available
Screenshot of Email Automations in few clicks
Screenshot of Transparent real-timing email delivery tracking
Screenshot of Integrations with your favourite tools
Screenshot of Lunch email campaigns in minutes
Screenshot of Agent skills, migrate from any other platform to Keplars in one command

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Screenshot of Email API, SMTP, Webhooks, SDKs in 11 languages

Technical Details

Technical Details
Deployment TypesSaaS
Mobile ApplicationNo
Supported CountriesGlobal
Supported LanguagesEnglish

FAQs

How much does Keplars cost?
Keplars starts at $5.
What are Keplars's top competitors?
Intuit Mailchimp, Twilio SendGrid, and Resend are common alternatives for Keplars.