onsubmit.dev
Form backend for developers and teams with instant notifications
Not rated yet — be the first
onsubmit.dev
Domain Rating
7
Estimated· Domain Rating by Ahrefs
Monthly visits
—
No estimate yet
MRR
—
Not connected
PageSpeed
75
Estimated· Lighthouse mobile
Founded
—
Overview
onsubmit.dev provides a backend service for HTML forms, allowing developers and teams to collect form submissions without writing server-side code. It generates unique POST endpoints for forms, routes submissions to inboxes and collaboration tools like Slack and Notion, and offers spam protection and file uploads. The service is GDPR-compliant, storing data within the EU, and supports integrations with popular tools and frameworks.
- Who is it for?
- Developers and teams needing form backend without server code
- Problem
- Developers and teams often need to handle form submissions but writing and maintaining backend code is time-consuming and complex. Managing spam, file uploads, and routing data to various tools adds further overhead.
- Solution
- onsubmit.dev provides unique POST endpoints for forms that instantly collect submissions, send notifications via email and collaboration apps, and integrate with popular tools without requiring any backend code or configuration.
- What makes it unique
- No backend code or server setup required
- Supports any HTML form or frontend framework without SDK
- GDPR-compliant data storage within the EU
- AI-powered spam protection and auto-reply
Use cases
- 1Collecting contact form submissions
- 2Routing leads to Slack or email
- 3Storing and managing form data in a dashboard
- 4Integrating form data with Notion, Google Sheets, Airtable
- 5Accepting file uploads via forms
- 6Protecting forms from spam with AI
Alternative to
Community
0upvotes
Best day
—
+0 last 7 days
Upvotes since launch
Be the first to upvote — the chart starts with you.
Screenshots (3)
Features (8)
- 01Unique POST endpoints
Generate a unique URL for each form to collect submissions without backend code.
- 02Instant notifications
Receive form submissions via email, Slack, Telegram, Discord, and more.
- 03Integrations
Connect form submissions to Notion, Google Sheets, Airtable, Jira, Zapier, n8n, and others.
- 04Spam protection
AI-powered antispam filters silently drop spam submissions.
- 05File uploads
Accept and securely store file attachments from forms.
- 06Submission dashboard
View, search, filter, and export submissions from a clean interface.
- 07Custom redirects
Send visitors to custom thank-you pages after form submission.
- 08GDPR compliance
Data stored and processed entirely within the European Union.
Pricing
Free
Free
50 submissions/month, up to 3 forms, email and Telegram notifications, basic integrations, custom redirect, file attachments, anti-spam, white-labeling, AI auto-reply
Most popular
Starter
5/ month
200 submissions/month, up to 10 forms, all integrations
- Slack
- Discord
- Notion
- custom redirect
- file attachments
- anti-spam
- white-labeling
Pro
29/ month
1,000 submissions/month, unlimited forms, all integrations
- Google Sheets
- Airtable
- Jira
- custom redirect
- file attachments
- anti-spam
- white-labeling
freemiumFree plan
Business details
- Business model
- SAAS
- Audience
- B2B
- Platforms
- web
- Pricing model
- freemium
- Value proposition
- No backend required for form submissions; get instant notifications and integrations with your existing tools.
FAQ (5)
01Do I need to write any backend code?
No. onsubmit.dev acts as the backend. Just point your form's action attribute at your endpoint URL.
02Can I use this with React, Vue, or any frontend framework?
Yes. It works with any tool that can send a POST request, no SDK needed.
03Where is my data stored and processed?
All data is stored and processed entirely within the European Union, ensuring GDPR compliance.
04Can I have multiple forms?
Yes. The free plan supports up to 3 forms, Starter supports 10, and Pro has no limit.
05What happens if onsubmit.dev shuts down?
You will receive at least 3 months' notice and have 90 days to export your data.
Traffic & SEO
Domain Rating
Sep 22 · by Ahrefs
7
- Domain Rating
- 7by Ahrefs
- Global rank
- —
- Lighthouse
- 75 perf · 100 SEOmobile
Traffic, engagement, sources and keywords are Similarweb-style estimates, refreshed monthly. Verified traffic comes from a connected Google Analytics / Search Console.
Technology (11)
Detected from the site's HTML, headers and bundles
- Build tool
- Vite
- Font
Google Fonts
- Mentioned on site
Stripe
- Metadata
- Open Graph
- Protocol
- HTTP/3
- UI framework
Tailwind CSS
- Web app
PWA
Cloudflare
Google Analytics
ReactFounders
No founders named on the site yet. The founder can claim this profile to add themselves.
Badge
Embed on your site
<a href="https://www.exitfounder.io/startup/onsubmit" target="_blank" rel="noopener"><img src="https://www.exitfounder.io/badge/onsubmit.svg" alt="onsubmit.dev — featured on ExitFounder" width="220" height="56" /></a>Shows live Domain Rating and upvotes for onsubmit. Cached for an hour.
Discussion
Sign in to join the discussion. Links aren’t allowed.Sign in
No comments yet. Ask the founder something or share your experience.
Similar products
Have an alternative? Show it to everyone comparing onsubmit.dev.
Appear on this page