Send from the frontend
One call from vanilla JS, React, Vue, Svelte or React Native – no backend needed. Public keys are protected by allowed origins, Turnstile and rate limits.
Frontmail documentation
Send email straight from your frontend. Pay for your peaks, not all year.
No email is lost
Out of credits? Messages wait in the hold queue and go out automatically after a top-up. Broken provider credentials? Failover and automatic resend after the fix.
Pay for your peaks
A monthly plan plus credit packs valid for 3–12 months – the credits that expire first are always used first.
Real HTML templates
Full HTML with live preview, typed and validated params, Handlebars conditions, loops and helpers.
Start here
Section titled “Start here”Overview and conceptsKeys, services, templates and credits in five minutes.
QuickstartFrom sign-up to your first delivered email.
Hold queueHow Frontmail keeps your emails when credits run out.
Migrating from EmailJSChange one import and move your templates.