FormSubmit and Web3Forms both help you collect form submissions without building your own backend, but they take different approaches. Web3Forms is a form API known for a generous free tier and a simple access-key model. 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 | Web3Forms | |
|---|---|---|
| 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 | Unlimited forms, 250 submissions/month |
| File uploads on free plan | Yes | No (paid feature) |
| Integrations on free plan | All (webhooks, Slack, Discord, Sheets, Airtable, Mailchimp, Kit) | None (paid feature) |
| Captcha on free plan | reCAPTCHA, hCaptcha, Turnstile | hCaptcha (reCAPTCHA/Turnstile on paid) |
| Over-limit behaviour | Stored & locked until upgrade or next month | See their site |
About Web3Forms
Web3Forms uses an access key included in your form to deliver submissions to email, with optional add-ons.
What FormSubmit does differently
- A full dashboard with a searchable submission inbox, spam folder and CSV/JSON export on every plan.
- Per-form settings: domain allowlist, redirects, retention, recipients, autoresponders and templates.
- Integrations with retries and a delivery log, including signed webhooks.
- File uploads stored privately, shared through expiring signed links.
Pricing and free plan
Plans checked October 2026. Web3Forms figures come from web3forms.com/pricing and its pro features docs. FormSubmit figures come from our pricing page.
| FormSubmit | Web3Forms | |
|---|---|---|
| Free | $0: 1 form, 50 submissions/mo, 100 MB, all features | $0: unlimited forms, 250 submissions/mo, 30-day history |
| Entry paid plan | Starter $10/mo: 3 forms, 1,000/mo | Starter (yearly only, on application for students, startups and non-profits): 5k/mo, no file uploads or autoresponders |
| Main paid plan | Pro $25/mo: 15 forms, 2,500/mo | Pro: 10k/mo, 1-year history |
| Higher tier | Business $50/mo: unlimited forms, 10,000/mo | Agency & Team: 20k/mo |
| Branding | No FormSubmit branding on any plan | White-label listed as a paid add-on |
Web3Forms shows prices in the visitor's local currency, so we don't quote a USD figure here. See their pricing page. FormSubmit's yearly billing gives two months free.
Limits
- Web3Forms Free: 250 submissions a month and 30 days of submission history. File attachments, reCAPTCHA and Turnstile, autoresponders, domain restriction, webhooks and integrations need a paid plan. The default uploader takes single files up to 5 MB, per its file attachment docs.
- FormSubmit: 1 form and 50 submissions a month on Free. Files can be up to 10 MB each (25 MB on Pro and Business). Spam doesn't count toward the quota. Over-limit submissions are stored but locked until you upgrade or the month resets.
For more options, see our Web3Forms alternatives roundup.
When to choose Web3Forms
You need only email delivery for simple forms, want more than 50 free submissions a month or many forms on a free plan, and don't need file uploads or integrations. Web3Forms' free plan is generous for that.
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 Formspark, FormSubmit vs Getform and the full Web3Forms alternatives comparison.