Quickstart
Senduler is a form backend: you keep your own HTML, and submissions POST to us. We handle spam, storage, notifications and integrations.
1. Create a form
Sign in and create a form (your first site workspace is created automatically). You'll get a unique endpoint URL like:
https://senduler.com/f/your-key
2. Point your form at it
No JavaScript required — just set the action:
<form action="https://senduler.com/f/your-key" method="POST">
<input type="email" name="email" required>
<textarea name="message"></textarea>
<!-- Hidden honeypot: bots fill it, humans don't -->
<input type="text" name="_gotcha" hidden>
<button type="submit">Send</button>
</form>
3. Choose what happens next
Each form has a submit behaviour:
- Redirect — send the visitor to a thank-you URL (great for plain HTML).
- JSON — return
{ "ok": true }for JavaScript clients. - Thank-you page — show a hosted confirmation message.
Add ?_next=https://your-site.com/thanks (or a _next field) to override the redirect per submission.
Reserved fields
Field names starting with _ are control fields and are never stored:
_next— redirect target_gotcha(or your configured honeypot) — spam trap