Connect your website forms to your inbox in 60 seconds with zero backend code
Ditch expensive form widgets and complex backend handlers. Paste a standard HTML form action, block spam with invisible honeypots, trigger auto-responders, and manage leads in an interactive spreadsheet inbox.
Drop into your application in under 60 seconds
Native typed interfaces with zero unnecessary dependencies. Built for standard fetch and modern edge runtimes.
<form action="https://api.sadasend.com/forms/submit" method="POST">
<!-- Public access key from your SadaSend dashboard (/app/forms) -->
<input type="hidden" name="access_key" value="sada_form_live_89f029a1b2c3d4e5" />
<!-- Invisible anti-spam honeypot (bots check it; humans never see it) -->
<input type="checkbox" name="botcheck" style="display: none;" />
<input type="text" name="name" required placeholder="Full Name" />
<input type="email" name="email" required placeholder="you@company.com" />
<textarea name="message" required placeholder="How can we help?"></textarea>
<button type="submit">Send Message</button>
</form>Zero-backend HTML form snippet. Forward submissions straight to your inbox with automatic reply-to headers and invisible honeypot spam protection.
Engineered for high deliverability and zero incident risk
Every layer from synchronous request validation to per-key rate limits is designed to keep critical transactional dispatches fast, reliable, and contained.
Zero Server Maintenance
Eliminate the overhead of maintaining serverless handlers, database pools, or mail servers just to process standard website inquiry forms.
Automatic Reply-To Routing
The submitter email is automatically attached to standard Reply-To headers so clicking Reply in Gmail or Outlook communicates directly with the lead.
Spreadsheet-Style Lead Grid
Inspect, filter, and review all submissions with dynamic columns, lead detail modal, and 1-click RFC 4180 UTF-8 BOM CSV export.
Instant Team Webhook Alerts
Forward form submissions to Slack channels, Discord webhooks, or Telegram bots in real time so your team responds to qualified leads in minutes.
SadaSend vs Formspree & Formcarry
Why developers choose SadaSend over expensive form-only widgets like Formspree and Formcarry with restrictive free tier caps.
| Feature & Capability | SadaSend | Formspree & Formcarry |
|---|---|---|
| Free Monthly Submissions | 250 submissions / month | 50 submissions / month |
| Full Transactional Email & SMTP | Included (6,000 emails/mo) | None (forms only, requires separate ESP) |
| Custom Confirmation Auto-Responders | Included on Starter/Pro | $10/mo paid plan required |
| Spreadsheet Lead Grid & CSV Export | Included with UTF-8 BOM formatting | Paid tier only |
| Multi-Framework Support (React, Next.js, Astro) | HTML, React, Next.js 15, Astro, Vue, Webflow | HTML & React only |
Verified as of November 2026. Competitor features and pricing are based on public documentation and may vary.
Start with 6,000 emails every month at zero cost
No artificial paywalls on security. Unlike providers that reserve recipient allowlists and approval workflows for enterprise tiers, every SadaSend account receives full safety controls from day one.
Everything you need to know about contact form API
Clear, transparent answers on deliverability, API authentication, and rate limits.
Related developer guides and architectural tutorials
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Contact Forms API & Anti-Spam Endpoints
Collect website contact form leads directly in your inbox with zero backend code. Includes honeypot bot trap, spam shield, and instant email dispatch.
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Complete REST API reference for sending emails, managing API keys, tracking delivery events, and configuring recipient allowlists with low latency.
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