A working contact form for any site, without a backend
Point your HTML form at one URL and start receiving submissions in your inbox. No server, no SMTP, no code. Spam-filtered and DKIM-signed so messages actually land.
<form action="https://forms.vastrox.com/YOUR-ID" method="POST">
<input type="email" name="email" placeholder="Your email" required>
<textarea name="message" placeholder="Your message"></textarea>
<button type="submit">Send</button>
</form>action, and you are live.Live in three steps
Create a form
Sign up free and get a unique endpoint URL for your form. Takes about ten seconds.
Point your form at it
Set your form's action to the endpoint and use method="POST". Every named field is captured.
Receive submissions
Each submission is emailed to you, stored in your inbox, spam-filtered, and can fire a webhook.
A real form backend, not just an email relay
Built to be premium from day one. All of this is on the free plan.
Email notifications
Every submission arrives as a clean, formatted email you can reply to directly. Reply-to is set to the sender.
Spam protection
Honeypot, timing traps, content heuristics, and disposable-email detection catch bots before they reach you.
Captcha when you want it
Turn on Cloudflare Turnstile per form for a friction-light challenge. Off by default, on in one click.
File uploads
Accept attachments with multipart/form-data. Type and size validated, files delivered with the email.
Webhooks
Forward each submission as JSON to Zapier, Make, Slack, Discord, or your own API. SSRF-guarded.
Redirect & success pages
Send visitors to your own thank-you page, or show a custom success message. Your call, per form.
Submission inbox
Everything is stored and searchable in your dashboard, so nothing is lost if an email is missed. Export to CSV.
Domain locking
Restrict a form to your own domain so nobody can hijack your endpoint from another site.
DKIM-signed delivery
Notifications are SPF-aligned and DKIM-signed, so they reach the inbox instead of the spam folder.
Drop it into whatever you are building
HTML contact form →
Make a plain HTML form send email, no backend.
PHP form not sending →
Skip the broken mail() function for good.
WordPress forms →
Fix wp_mail delivery without an SMTP plugin.
Static site form →
Netlify, GitHub Pages, Hugo, Jekyll, plain HTML.
File upload form →
Accept attachments with zero server code.
Webhook form →
Push submissions to Zapier, Slack, or your API.
Formspree alternative →
A free option when you hit the paywall.
SMTP contact form →
Authenticated, signed delivery to the inbox.
Already a VASTROX customer? Unlock the pro tier
Unlimited forms, higher limits, files in VASTROX Drive, notifications from VASTROX Mail on your own domain, team inbox, and no "Powered by VASTROX" line. Your forms, hosting, email, and files under one login.
Add a form to your site in the next five minutes
Free plan, no credit card, no server. Just change one URL.
Create your free form