EmailJS
Email Services
EmailJS API enables developers to send emails directly from client-side JavaScript (browser/React/Vue) without a backend server. The EmailJS API connects to your existing email service provider and sends emails using predefined templates.
Static sites, React/Vue apps, indie projects, and contact forms without a backend
Send emails directly from JavaScript (browser or Node.js) without backend server. ⚠️ WARNING: API key is exposed in client-side JS — use allowlisting (URL/domain restrictions) to prevent abuse and limit requests to your domain. Works with any SMTP provider: Gmail SMTP (using app password, not regular password), Outlook, custom domain email, etc. Free tier: 200 emails/month. Paid tiers: 1,000-500K emails/month. Nigerian Gmail and custom domain emails fully supported.
Key Highlights
- Send emails directly from browser JavaScript — no Node.js server or backend endpoint needed for contact forms and notifications
- Connects to your own email service (Gmail, Outlook, Yahoo, or custom SMTP) so emails come from your own domain and address
- Pre-built email templates with dynamic variables allow personalised emails (e.g. {{user_name}}, {{message}}) without string concatenation
- Simple JavaScript SDK integrates in 3 lines of code — compatible with plain JS, React, Vue, Angular, and React Native
- 200 free emails per month on the free plan — enough for portfolio contact forms, feedback widgets, and small indie projects
Required Access Documents
- Service IDRequired
Use Cases
- Primary Use Case:Implement this API to solve core business problems and integrate essential functionality into your applications.
- Enterprise Integration:Integrate with enterprise systems to streamline workflows, automate processes, and improve operational efficiency.
- Scalable Infrastructure:Build scalable applications leveraging this API infrastructure handling growing user bases and transaction volumes.
- Data Analytics & Insights:Extract valuable insights from API data to inform business decisions and identify optimization opportunities.
- Automation & Compliance:Automate repetitive tasks, ensure regulatory compliance, and maintain detailed audit trails for governance.