Formsite alternative: your own HTML form, one endpoint

The first trigger is the form-count and result-count double cap. Formsite tiers on both form count and result (submission) count at every plan — 5 forms / 100 results on free, 15 forms / 1,500 results on Basic, scaling all the way up. For anyone running multiple low-traffic forms, the form-count side binds well before actual traffic does. splitforms removes that ceiling entirely: unlimited forms on every tier, including Free.

The second trigger is the hosting model. Formsite forms are hosted on a Formsite subdomain or embedded via iframe. For internal surveys that's fine; for a public marketing site, the iframe loads slowly, breaks page styling, breaks the analytics chain across the funnel, and ships a 'Powered by Formsite' footer on the free and lower tiers. splitforms is a standard form action — your HTML, your domain, your CSS, no iframe.

The third trigger is developer experience. Formsite's product is a hosted builder; its API surface is functional but secondary to the visual editor. splitforms ships an open REST API on every plan including free, HMAC-SHA256 signed webhooks (one retry after ~2s on network errors, timeouts and 5xx; not on 4xx; 8-second timeout) on paid plans, and an MCP server so Claude or Cursor agents can read submissions and drive workflows without a custom integration. For a developer wiring forms into the broader stack, splitforms feels native in a way Formsite doesn't.

Formsite Free

5 forms, 100 results, branded footer, limited integrations. splitforms Free: 500 submissions total, unlimited forms, full dashboard, smart spam filtering, open API. For a real production project, the 5x result gap is the headline.

Formsite Basic ($19.50/mo)

15 forms, 1,500 results. splitforms Pro ($5/mo): 5,000 submissions/month, no per-form cap. Roughly 4x cheaper at higher submission volume.

Formsite Professional ($32.50/mo)

50 forms, 15,000 results. splitforms Annual ($49/year): 15,000 submissions/month. Over three years, that's $147 vs roughly $1,170 of Formsite Professional.

The honest caveat

Formsite's higher tiers bundle features splitforms doesn't try to replicate — built-in HIPAA-friendly workflows, PayPal and Authorize.net payment widgets alongside itemized order forms and variable totals, multi-page form builder, scheduling tools, registration-system features. splitforms does now ship native Stripe payments — connect your own Stripe account and set a fixed amount per form — but that covers deposits and flat-fee orders, not a priced line-item catalog. If the rest of that list is decisive for your workflow, the price is for it. If you're a developer who'd rather write HTML and POST to an endpoint, you're paying $19.50-$32.50/mo for a builder you don't use.

• “I'm hitting the 5-form cap on the free plan before I'm anywhere near the result cap.”

  splitforms has no form-count ceiling on any plan, including Free; you only pay for total submission volume.

• “My form is loading in an iframe and breaking my analytics chain.”

  splitforms is a standard HTML form action — your markup, your domain, no iframe.

• “The branded footer requires a paid upgrade.”

  splitforms has no hosted form page to brand; free generated code includes a small attribution link, and paid plans remove it.

• “I need a real REST API and webhook delivery, not just a hosted builder.”

  splitforms ships an open REST API and MCP server on every plan, with signed webhooks on paid plans.

• “AI-generated spam is getting through the CAPTCHA.”

  splitforms runs every submission through smart spam filtering: automatic, rule-based scoring of content signals such as links, spam phrases and disposable email addresses.

• “I want to drive form submissions from a Claude or Cursor agent.”

  splitforms ships an MCP server natively.

Step 1: sign up at splitforms.com for a free access key — no credit card required. Step 2: rebuild your form as plain HTML on your own page. For each Formsite question, write a corresponding `<input>`, `<textarea>`, or `<select>` inside `<form action="https://splitforms.com/api/submit" method="POST">`. Step 3: submit a test entry and confirm it lands in the splitforms dashboard and owner inbox.

If you were embedding Formsite via iframe (`<iframe src="https://www.formsite.com/...">`), the migration is to remove the iframe and replace it with a real HTML form on the page. This takes longer than a simple URL swap — you're replacing a hosted experience with markup you own — but it's a one-time cost and you end up with a faster page that doesn't depend on Formsite's runtime.

If you were using Formsite's built-in payment widgets for a flat fee — a deposit, a registration charge, a fixed-price order — splitforms has a native equivalent on paid plans. Connect your own Stripe account from the dashboard, set the amount in Form settings under Payments, and submitters are handed off to Stripe Checkout after they submit; the submission is stored either way and marked paid or unpaid. Money moves straight into your Stripe account, and refunds, receipts, and payouts stay in your own Stripe dashboard. For itemized order forms or amounts that vary per respondent, keep the client-side pattern: drop Stripe Elements into the page, capture the token, POST the full payload to splitforms. Either way, the webhook surface fans the submission out to your CRM, email, and order-fulfillment systems.

Is splitforms a true Formsite alternative? For the backend layer — POST endpoint, submission storage, dashboard, webhooks, spam filtering, file uploads, notifications — yes, with 500 free submissions up front and cheaper paid tiers. For Formsite's visual builder, multi-page editor, and HIPAA-friendly tier, splitforms doesn't try to replicate those; you'd write the form HTML yourself.

Will my Formsite form work without the iframe? You'll need to rebuild it as HTML on your own page. Formsite's hosted builder doesn't export to a portable form-action URL the way a pure backend does.

Does splitforms support HIPAA? Not currently. If you need HIPAA-compliant medical intake forms, Formsite's HIPAA tier is the right tool for that specific workflow.

What about payment collection? splitforms has native Stripe payments on paid plans: connect your own Stripe account, set a fixed amount per form, and submitters pay through Stripe Checkout after submitting, with each submission marked paid or unpaid in the dashboard. Funds land in your Stripe account directly. Formsite still covers more ground on itemized order forms, variable totals, and PayPal or Authorize.net; for those on splitforms you'd run Stripe Elements client-side and POST the result.

Is there a per-form limit on splitforms? No. Every plan — Free, Pro and Annual — includes unlimited forms.

Is there a yearly plan? Yes. Annual is $49/year for 15,000 submissions/month with every Pro feature, about $4.08/month.