Product
Spam Protection Delivery Monitoring File Uploads Webhooks & Notifications Client Views
Integrations
Discord Slack Telegram Custom Webhooks
Solutions
For Agencies For Freelancers For SaaS
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⚡ Waitlist

Your forms,
monitored.

Point any HTML form at Formbox and get instant submission storage, multi-layer spam protection, email delivery tracking, and real-time webhook notifications. No backend code. No dependencies.

Formbox Contact Form Submission #1,847
New submission received 2s ago
✓ Delivered 🛡 Spam Clean ⚡ 38ms
name "Sarah Chen"
email "sarah@example.com"
message "Love the product! Quick question about…"
✓ Received ✓ Email sent ✓ Delivered ✓ Webhook fired
Works with any stack
📄 HTML5 ⚛️ React Next.js 🚀 Astro 📝 Hugo 🏔 Eleventy 🎨 Webflow 🌐 Gatsby

Why teams choose Formbox

The form backend that does more than just catch POST requests.

📬

Delivery Monitoring

Know if your form emails actually arrived. Track sent, delivered, and bounced states per notification. Answer "is my form broken?" before anyone asks.

🏢

Built for Agencies

Folder hierarchy, client credentials per form or folder, read-only client views. Manage 50 clients from one account without sharing your login.

Zero Dependencies

No npm install. No SDK. No build step. Point your HTML form's action attribute to your endpoint and start receiving submissions in seconds.

Everything you need to manage form submissions

From spam filtering to delivery tracking — one dashboard for all your forms.

📥

Submission Handling

Every submission stored, searchable, and exportable. Unique POST endpoint per form with retention windows per plan.

#1847 Sarah Chen 2s ago
#1846 James Wilson 5m ago
#1845 Priya Sharma 12m ago
🛡

Multi-Layer Spam Protection

Honeypot fields, submit-timing checks, domain locking, rate limiting, Altcha, and Cloudflare Turnstile. Layer them as you need.

Honeypot ✓ Turnstile ✓ Rate Limit ✓
blocked 12 spam this week 0 false positives
📬

Email Delivery Status

Track every notification email: sent, delivered, or bounced. Know instantly if your form notifications are silently failing.

Sent Delivered owner@agency.com
Sent Bounced old@client.net
📂

Client & Agency Structure

Organize forms into folders per client. Issue scoped credentials. Give clients read-only access to their own submissions.

📁 Acme Corp 3 forms
Contact Form client-view
📁 Globex Inc 5 forms
📎

File Uploads

Accept file attachments on any form. Files stored securely with MIME-type validation and per-plan storage limits.

📄 resume.pdf 2.4 MB
🖼 screenshot.png 890 KB
🔗

Webhooks & Integrations

Get notified wherever you work. Discord, Slack, Telegram, email, or any custom webhook endpoint.

Discord 200 OK 12ms
Slack 200 OK 45ms
Custom (HubSpot) 201 Created 89ms

Three steps to never miss a submission

No backend. No SDK. No build step. Just your HTML form and a Formbox endpoint.

1

Point your form

Set the action attribute on any HTML form to your Formbox endpoint URL.

<form action="https://formbox.dev/f/abc123"
      method="POST">
  <input name="email" />
  <button type="submit">Send</button>
</form>
2

We process at the edge

Submissions pass through multi-layer spam protection and field validation automatically.

Honeypot checkclean
Turnstile verifiedpassed
Rate limit3/15 rpm
Origin allowedmysite.com
3

You get notified

Receive notifications via email, Discord, Slack, Telegram, or any custom webhook instantly.

📧 Email notificationdelivered
💬 Discord webhook200 OK
📢 Slack webhook200 OK
🔗 Custom → HubSpot201

Integrations

Get submissions where you already work.

💬
Discord
📢
Slack
✈️
Telegram
📧
Email
🔗
Webhooks
📊
CSV Export

Simple, transparent pricing

Start free. Scale as you grow. No hidden fees.

Free
$0 / month
Free forever
1 form
100 submissions / month
2 week data retention
50 MB file storage
Honeypot spam filter
Origin locking
Discord webhook
Client read-only view
Email notifications
CSV export
Get Started Free
Pro
$19 / month
$190 / year — 2 months free
Unlimited forms
15,000 submissions / month
6 month data retention
10 GB file storage
Email delivery status
Autoresponders
Altcha (privacy CAPTCHA)
Multi-variable sort
Pre-sorted CSV export
Overdue/stale indicators
Choose Pro

Frequently asked questions

Do I need to install any npm packages or SDKs?
No. Formbox requires zero client-side JavaScript or build dependencies. Set your HTML form's action attribute to your Formbox endpoint and you're done. Works with plain HTML, React, Next.js, Astro, Hugo, Webflow, Eleventy, and any static site generator.
How does the multi-layer spam protection work?
Formbox uses a defense-in-depth approach: invisible honeypot fields catch bots, submit-timing checks flag instant submissions, domain/origin locking prevents cross-site abuse, per-endpoint rate limiting stops floods, and optional Cloudflare Turnstile or Altcha proof-of-work challenges stop sophisticated bots — all without affecting real users.
What makes delivery monitoring different from other form backends?
Most form backends tell you a submission was received but have no idea if the notification email actually landed in your inbox. Formbox tracks sent, delivered, and bounced states per notification email per recipient. If your email silently fails, you'll know immediately — before a client ever asks "is the form broken?"
Can I redirect visitors to my own thank-you page?
Yes. On paid plans, you can set a custom redirect URL per form so visitors are sent to your own confirmation page after submission instead of the default Formbox thank-you page.
What happens when I hit my monthly submission limit?
New submissions will be rejected with a clear error response until the next billing cycle or until you upgrade your plan. Existing submissions remain accessible and are never deleted before your retention window expires.
Can my clients see their own submissions?
Yes. You can issue scoped credentials per form or per folder. Clients get a read-only view of their submissions without access to your account, other clients, or billing. New forms added to their folder are automatically visible — no need to re-issue credentials.

Get early access

Join the waitlist and be the first to know when Formbox opens to the public. Early members lock in beta pricing.

No spam. Unsubscribe anytime. We'll only email you when the beta opens.