EmailJS
Send emails directly from client-side JavaScript without a backend server.
Read docs Updated 2026-06-17
What is EmailJS?
EmailJS is a service that allows developers to send emails using client-side JavaScript without requiring backend servers.
It is useful for frontend developers building static websites or single-page applications that need basic email functionality such as contact forms.
What you can build with EmailJS
Static site contact forms
Add a working contact form to a Jamstack or GitHub Pages site by calling EmailJS directly from the browser on submit.
In-app user feedback
Capture bug reports or feature requests inside a single-page app and email them to the team without exposing any backend endpoint.
Event-triggered notifications
Send confirmation or reminder emails when a user completes an action such as signing up or placing an order, all from client-side code.
Get started with EmailJS
- 1Create a free account at emailjs.com and verify your email
- 2Add an email service (Gmail, Outlook, or custom SMTP) and note the service ID
- 3Create an email template and copy its template ID
- 4Install the EmailJS browser SDK via CDN or npm
- 5Initialize the SDK with your public key then call emailjs.send with service, template, and params
EmailJS: pros & cons
Pros
- +No server or backend code required
- +Works on any static site or frontend framework
- +Free tier sufficient for low-volume personal projects
- +Simple JavaScript API with template variables
Cons
- –Emails are sent through EmailJS servers (third-party dependency)
- –Free plan has monthly limits and visible EmailJS branding option
- –Only supports email; no SMS or other channels
Did you find this helpful?
Frequently asked questions
A service that lets developers send emails from client-side JavaScript without setting up a backend server or exposing SMTP credentials.
User reviews
Verified reviews from the community shape this listing's rating.
Loading reviews…
Similar APIs
Other social & web options worth comparing.