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SendGrid
Email API and marketing campaign tools, now part of Twilio
Email and MessagingEmail delivery at scale
Alternatives to Twilio
12 tools like Twilio, chosen by what they do. About Twilio
Freemium
Mailgun
Email API for sending, receiving and tracking transactional mail
Email and MessagingEmail API for developers
Freemium
Loops
Email platform for SaaS teams, from campaigns to transactional mail
Email and MessagingEmail for SaaS companies
Freemium
Nylas
API for email, calendar and meeting data across providers
Email and MessagingEmail and calendar APIs
Freemium
Mailtrap
Email API, SMTP and test sandbox for developer and product teams
Email and MessagingEmail testing and sending
Open source
React Email
Unstyled React components for building email templates
Email and MessagingBuild emails with React
Freemium
Brevo
Email, SMS and CRM tools for marketing and transactional messages
Email MarketingEmail, SMS and CRM
Freemium
Freemium
Twilio Segment
Customer data platform that collects events and sends them to tools
Data PipelinesCustomer data platform
Open source
Appwrite
Open source backend with auth, databases, storage and functions
Backend as a ServiceOpen backend
Freemium
Klaviyo
Email, SMS and AI agents for ecommerce customer marketing
Email MarketingEmail and SMS for ecommerce