Submit JSON
Backend API for HTML forms — handles submissions, storage, and notifications for static sites
| What is it | Backend API for HTML forms — handles submissions, storage, and notifications for static sites |
|---|---|
| Pricing | Freemium — from $5/mo |
| Free tier | Yes |
| Platform | Web Application |
| API | Yes |
| Best for | contact form submissions, user feedback collection |
| Domain registered | 2023 |
Data updated Aug. 1, 2026
What does Submit JSON do?
Submit JSON is a form backend service that handles HTML form submissions for websites without server infrastructure. It captures form data, stores it securely, and sends real-time notifications through email, webhooks, and various integrations. The service works with any website that can make HTTP requests, making it ideal for static sites, landing pages, and single-page applications.
The tool provides a JavaScript client library and REST API for easy integration. Developers can set up custom email templates, configure security measures like reCAPTCHA and Cloudflare Turnstile, and organize submissions into projects. Submit JSON stores all data until manually deleted and offers search, filter, and export functionality for managing submissions.
Web developers building static sites with JAMstack frameworks benefit most from Submit JSON. It's perfect for contact forms, feedback collection, survey responses, and support ticket systems. The service eliminates the need for maintaining backend servers while providing reliable form handling and notification capabilities.
Key features
What makes it stand outWho is Submit JSON for?
Who benefits most from this toolPricing
Free tier available — start without a credit cardfree
- 150 emails
- 1 projects
- 2 endpoints
- 250 submissions
- 250 submissions
- 2 endpoints
- 1 project
- 150 emails
- Endpoint security
hobby
- 2,500 emails
- 5 projects
- 25 endpoints
- 2,500 submissions
- 25 linked emails
- 2,500 submissions
- 25 endpoints
- 5 projects
- 2,500 emails
- Endpoint security
- 25 linked emails
- Data export
- webhooks
- Full API access
- CAPTCHA
- Zapier integration
growth
- 10,000 emails
- 20 projects
- 100 endpoints
- 10,000 submissions
- 100 linked emails
- 10,000 submissions
- 100 endpoints
- 20 projects
- 10,000 emails
- Endpoint security
- 100 linked emails
- Data export
- webhooks
- Full API access
- CAPTCHA
- Zapier integration
- Slack app
- Discord app
- Google Sheets
- Telegram Bot
- White-label emails
pro
- 25,000 emails
- 100 projects
- unlimited endpoints
- 25,000 submissions
- 250 linked emails
- 25,000 submissions
- Unlimited endpoints
- 100 projects
- 25,000 emails
- Endpoint security
- 250 linked emails
- Data export
- webhooks
- Full API access
- CAPTCHA
- Zapier integration
- Slack app
- Discord app
- Google Sheets
- Telegram Bot
- White-label emails
- Priority support
- Feature requests
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