Hosted Forms · Pages · AI Chat
Formsig is hosted form infrastructure: secure form endpoints for any website or app, optional Hosted Pages you publish as a shareable link, AI Chat (Beta) for an embeddable site assistant, and one shared submissions inbox with email alerts, CSV export, and webhooks. No backend required.
Wire a form POST URL, publish a Hosted Page, or paste one script for plug-and-play AI Chat, a site assistant that answers from your crawled pages. Same dashboard, no backend to run.
No credit card required · Free plan available · Publish in minutes
AI Chat · Features · Pricing · AI Chat guide
Three ways to help visitors: form POST URL, Hosted Page, or plug-and-play AI Chat. Submissions and chat leads land in your dashboard.
Each form gets a stable POST URL on formsig.com. Use it in HTML, JavaScript, or any framework.
Use it in:
https://formsig.com/f/<form-id>You handle the frontend. Formsig handles submissions, notifications, uploads, exports, and workflows.
Build and publish a page inside Formsig with templates, branding, and live preview.
Create a hosted page with:
https://formsig.com/p/contactThen publish and share instantly. No website or hosting required.
Add a chat bubble to any site with one script. Crawl your pages, add custom knowledge (AI training notes), and let visitors ask questions or capture email leads.
Plug and play:
<script src="https://formsig.com/c/{id}/widget.js" async defer></script>No SDK required. Try it on this site or in Playground chat mode.
AI Chat · Beta
One script tag adds a chat bubble. AI Chat answers from your site crawl plus custom knowledge (AI training notes). Visitors can also Get a reply by email when they want a human follow-up.
Name it, set your site URL, run a crawl.
AI training notes for details the crawl may miss.
Copy /c/{id}/widget.js into your HTML.
Workflows
On paid plans, optional HTTPS webhooks send the same structured JSON whether submissions come from your form endpoint or a Hosted Page.
Connect with Slack · Discord · Zapier · Notion · Google Sheets · Airtable · Make · n8n · IFTTT · Twilio
Examples:
POSTFormsigYour webhookAnywhere
Formsig focuses on lightweight submission workflows, not a bloated automation platform.
Developers
Every form gets a stable POST URL (shown in your dashboard as formsig.com/f/{id}).
Works with: HTML · React · Next.js · Vue · Nuxt · Astro · Laravel · Rails · Django · Flask · Go · Remix · Angular · PHP · HTMX
<form action="https://formsig.com/f/{form_id}" method="post">
<input name="email" type="email" required />
<textarea name="message"></textarea>
<button type="submit">Send</button>
</form>const endpoint = "https://formsig.com/f/{form_id}";
<form action={endpoint} method="post">
<input name="email" type="email" required />
</form>const endpoint = process.env.NEXT_PUBLIC_FORMSIG_URL;
<form action={endpoint || "https://formsig.com/f/{form_id}"} method="post">
<input name="email" type="email" required />
</form><script setup>
const endpoint = "https://formsig.com/f/{form_id}"
</script>
<form :action="endpoint" method="post">...</form><script>
const endpoint = "https://formsig.com/f/{form_id}";
</script>
<form action={endpoint} method="post">...</form>const endpoint = "https://formsig.com/f/{form_id}";
const fd = new FormData(form);
await fetch(endpoint, {
method: "POST",
body: fd
});const endpoint = "https://formsig.com/f/{form_id}"
<form :action="endpoint" method="post">
...
</form>const endpoint = "https://formsig.com/f/{form_id}";
<form action={endpoint} method="post">
...
</form><form action="https://formsig.com/f/{form_id}" method="post">
<input name="email" type="email" required />
<button type="submit">Send</button>
</form>endpoint = "https://formsig.com/f/{form_id}"
<%= form_with url: endpoint, method: :post do %>
<%= email_field_tag :email %>
<% end %><form action="https://formsig.com/f/{form_id}" method="post">
<input name="email" type="email" />
<button>Send</button>
</form><form action="https://formsig.com/f/{form_id}" method="post">
<input name="email" type="email" />
</form>endpoint := "https://formsig.com/f/{form_id}"
values := url.Values{"email": {"you@example.com"}}
_, _ = http.PostForm(endpoint, values)const endpoint = "https://formsig.com/f/{form_id}";
<Form action={endpoint} method="post">
<input name="email" />
</Form>const endpoint = "https://formsig.com/f/{form_id}";
<form [attr.action]="endpoint" method="post">
<input name="email" type="email" />
</form>$endpoint = "https://formsig.com/f/{form_id}";
<form action="<?= htmlspecialchars($endpoint) ?>" method="post">
<input name="email" type="email" />
</form><form hx-post="https://formsig.com/f/{form_id}" hx-swap="none">
<input name="email" />
</form>You build the frontend. Formsig handles the backend workflow.
What you get
Not separate tools. Shared billing, limits, and notifications. AI Chat is plug-and-play with no SDK. Pages are hosted and conversion-focused, not a full site builder.
Publish at /p/your-slug with templates, branding, and live preview.
Share a link and collect submissions without hosting a full website.
Each form gets a stable /f/{id} POST URL on formsig.com.
No custom backend required.
Plug-and-play chat widget: one script, answers from your crawl and custom knowledge.
Every submission lands in one dashboard, no matter where it came from.
Review messages, uploads, history, and activity in one place.
Export submissions to CSV on Starter+ plans.
Free plans stay lightweight with in-app access and upgrade paths.
Instant alerts, verified recipients, and digest-friendly options depending on plan limits.
Support resumes, attachments, screenshots, and documents using multipart uploads.
POST structured JSON to APIs, Slack, Zapier, Make, Sheets, CRMs, and internal tools.
Optional request signing supported.
Test forms and requests instantly before production.
Sanity-check payloads before you ship.
Clear usage limits and optional Turnstile spam protection before submissions reach your inbox.
How it works
Hosted Pages and form endpoints are not separate systems. They use the same submission pipeline.
Build a form endpoint, publish a Hosted Page, or create an AI Chat assistant.
Receive submissions, chat replies, email leads, uploads, and webhook events.
Review submissions, export data, update pages and forms, and route workflows without managing servers or backend infrastructure.