FormSubmit and Basin both help you collect form submissions without building your own backend, but they take different approaches. Basin is a form backend for static sites with spam filtering and integrations. FormSubmit is a headless form backend: you keep full control of your form's HTML and design, and every plan — including Free — includes spam protection, file uploads, webhooks and all integrations.
At a glance
| FormSubmit | Basin | |
|---|---|---|
| Approach | Headless endpoint + optional builder & hosted pages | Hosted form endpoint |
| Works with any host | Yes | Yes |
| Your own HTML & design | Yes | Yes |
| Free plan | 1 form, 50 submissions/month, 100 MB storage | 1 form, 50 submissions/month, 100 MB uploads, 30-day retention |
| Integrations on free plan | All (webhooks, Slack, Discord, Sheets, Airtable, Mailchimp, Kit) | Zapier; webhooks, Slack and Sheets from Growth |
| Spam counts toward quota | No | No |
| Over-limit behaviour | Stored & locked until upgrade or next month | Delivered and billed as overages |
About Basin
Basin offers form endpoints for static websites with spam filtering, notifications and integrations.
What FormSubmit does differently
- A public, no-login visual form generator with exports for React, Next.js, Vue, Svelte, Astro, WordPress, Webflow and Framer.
- Hosted form pages at
formsubmit.app/to/{id}built from the same builder. - Direct browser uploads for large files, stored privately with signed links.
- Google Sheets with drive.file scope only.
Pricing and free plan
Prices checked October 2026. Basin figures come from usebasin.com/pricing, and FormSubmit figures from our pricing page.
| FormSubmit | Basin (billed yearly) | |
|---|---|---|
| Free | $0: 1 form, 50 submissions/mo, 100 MB | $0: 1 form, 50 submissions/mo, 100 MB, 30-day retention |
| Entry paid plan | Starter $10/mo: 3 forms, 500/mo, 2 GB | Starter $12.50/mo: 3 forms, 250/mo, 500 MB |
| Next tier | Pro $25/mo: 15 forms, 2,500/mo, 10 GB | Growth $24.17/mo: unlimited forms, 1,000/mo, 2 GB |
| Higher tiers | Business $50/mo: unlimited forms, 10,000/mo, 25 GB | Pro $30.62/mo: 5,000/mo, 10 GB · Agency $81.25/mo: 25,000/mo, 50 GB |
| Webhooks, Slack, Google Sheets | Every plan | Growth and above |
Basin's yearly prices are shown above; monthly billing costs more. Basin also lists a 14-day free trial on paid plans. FormSubmit's yearly billing gives two months free.
Limits
- Basin: spam doesn't count toward your limit. Submissions over the monthly cap are still delivered and billed as overages, from $5.25 per 1,000. Starter emails carry Basin branding; branded emails start on Growth.
- FormSubmit: spam doesn't count either. Over-limit submissions are stored but locked until you upgrade or the month resets, and nothing is billed automatically. Files can be up to 10 MB each (25 MB on Pro and Business).
When to choose Basin
You want advanced filtering (location, language and custom content filters, virus scanning on Pro), multi-step forms or saved partial submissions on Agency. Basin also suits you if you'd rather pay overages than have submissions locked, or your sites are already connected to it.
When to choose FormSubmit
- You want your form to look exactly like the rest of your site.
- You want integrations, captcha and spam protection without upgrading.
- You care about privacy details: hashed IPs, encrypted secrets, private files, minimal Google permissions and configurable retention.
- You build many sites (agency, freelancer) and want one dashboard for all of them.
How to switch
- Create a FormSubmit form.
- Replace the form's
actionURL (or yourfetchURL) with your FormSubmit endpoint. - Keep your field names — emails and exports will look the same.
- Recreate integrations in the form's Integrations tab and send a test.
Need help? The docs and guides cover every framework. Comparing other options? See FormSubmit vs Formspree, FormSubmit vs Getform, FormSubmit vs Formspark and our Formspree alternatives roundup.