EmailJS sends emails straight from client-side JavaScript or HTML forms, no backend needed. Free plan included; paid plans start at $9/month for more volume.
EmailJS is a developer-focused service that lets web applications send emails straight from client-side JavaScript, without writing or hosting any backend code for the email logic itself. Normally, sending email from a web form requires a server that holds API keys and calls a provider like SendGrid or an SMTP server; EmailJS instead handles that server-side credential management on its own infrastructure and exposes a simple SDK call that developers trigger from the browser.
The company was co-founded by Sergey Khomushin in 2017 and is headquartered in Singapore, operating as EmailJS Pte Ltd. It reports being used by more than 25,000 developers, ranging from solo builders adding a contact form to a portfolio site to small teams shipping transactional email in production apps.
The core workflow has three steps: connect an email service (personal providers like Gmail, Outlook, and Yahoo, or transactional providers like SendGrid, Mailgun, and Amazon SES), design a reusable email template with variable placeholders, and call EmailJS's SDK from a webpage or app to send using that template. Templates support HTML and multipart content, and parameters let a single template serve many different messages.
Security features include IP-based rate limiting, reCAPTCHA integration to block bot submissions, an allowlist for approved domains, and a suppression list for bounced or unsubscribed addresses on paid plans. EmailJS also exposes a REST API and history endpoint so developers can inspect and audit sent messages outside the dashboard.
EmailJS uses a freemium model. The Free plan costs nothing and includes 200 email requests per month, 2 templates, requests capped at 50KB, and 7-day history retention, enough for small personal projects or testing. The Personal plan is $9/month for 2,000 requests, 6 templates, larger attachments, unlimited contacts, and white-label sending.
The Professional plan is $15/month, covering 5,000 to 10,000 requests depending on terms, unlimited templates, up to 3 user seats, and priority support, while the Business plan is $40/month for 25,000 to 200,000 requests, unlimited seats, larger attachments up to 30MB, and the same white-label and priority-support features. All paid tiers carry a stated 99.5% uptime SLA.
Yes, EmailJS has a genuine free plan covering 200 requests per month with 2 templates, suitable for small personal projects or testing before upgrading to a paid tier.
No. EmailJS's core purpose is letting client-side JavaScript or HTML forms send email directly, since EmailJS's own infrastructure handles the provider credentials and delivery.
It supports personal providers like Gmail, Outlook, and Yahoo, as well as transactional providers like SendGrid, Mailgun, and Amazon SES, connected through its dashboard.
Paid plans start at $9/month for Personal (2,000 requests), $15/month for Professional (5,000-10,000 requests), and $40/month for Business (25,000-200,000 requests).
Not really. EmailJS is built for lightweight transactional use cases like contact forms and notifications rather than high-volume marketing campaigns, which are better served by dedicated email marketing platforms.