FormSubmit
Easy form endpoints for your HTML forms
About FormSubmit
FormSubmit is a free form backend that emails HTML form submissions to you without any server-side code. You point a form's action attribute at a FormSubmit URL containing your email address, confirm it once, and submissions arrive in your inbox. It is built for static sites, landing pages, and prototypes, and is run by Devro LABS.
Pros & Cons
Pros
- Completely free with unlimited forms and submissions
- Setup takes minutes: change one form attribute and confirm your email, no account needed
- Works on any static host (GitHub Pages, Netlify, plain HTML) with no backend code
- Covers common needs such as AJAX, file uploads, webhooks, autoresponders, and custom redirects
- Invisible email alias keeps your address out of page source
Cons
- No dashboard: submissions are delivered by email, and the archive API is capped at 5 calls per day with 30-day retention
- Uploaded files are not retained or available through the API
- Autoresponse does not work for AJAX submissions or forms with reCAPTCHA disabled
- Configuration is done through hidden HTML fields, so there is no visual form builder, conditional logic, or integrations beyond a webhook
- No paid tier or SLA, so support and reliability guarantees are limited
Key Features
No-Code Form Endpoint
Point any HTML form's action attribute at formsubmit.co/your@email.com and submissions are emailed to you, with no registration, PHP, or backend required.
Spam Protection
Google reCAPTCHA v2/v3 by default, an optional _honey honeypot field, a _blacklist field for banned phrases, and server-side spam filtering.
Invisible Email Alias
After confirming your address you receive a random string to use in the form action instead of your plain email, hiding it from bots and visitors.
AJAX Submissions
A /ajax/ endpoint accepts cross-origin JSON submissions so users never leave the page.
File Uploads
Native file attachments via multipart/form-data, with multiple file inputs allowed up to a 10 MB total per submission.
Webhooks
A _webhook field posts each new submission's form data to your own URL in real time.
Email Customization
Hidden fields set the subject (_subject), Reply-To (_replyto), CC recipients (_cc), email template (3 options), and a custom thank-you redirect (_next).
Autoresponse
The _autoresponse field sends the submitter an instant confirmation email with a custom message and a copy of their submission.
Submissions Archive API
Retrieve timestamped submissions through a free API key, limited to 5 calls per day, with 30-day retention.
Pricing
- Unlimited forms and submissions per email
- No registration required
- reCAPTCHA, honeypot, and phrase blacklist spam filtering
- AJAX, file uploads (10 MB total), and webhooks
- Submissions archive API (5 calls/day, 30-day retention)
Best For
Static Site Contact Forms
Add a working contact form to a GitHub Pages, Netlify, or plain HTML site without writing or hosting backend code.
Landing Pages and Prototypes
Collect sign-ups or feedback on a quick landing page or prototype in minutes, then forward data to your own system via webhook.
Freelancer Client Sites
Ship simple brochure sites for clients with forms that email the client directly, using the invisible alias to hide their address.
File Collection Forms
Accept small attachments such as screenshots or documents through a support or application form, delivered by email.
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