MuxForms documentation covers the website embed, the JSON submit API, signed submission webhooks, and setup for Next.js, WordPress, and React Native. Create a form in the dashboard, allow your origins, then paste the embed tag or POST matching field names to the ingest endpoint.
Docs
Add MuxForms to a site or an app in minutes
Start with the embed if you want MuxForms to render fields. Use the API if you already have UI. Pick a platform guide for copy-paste setup.
Integration options
| Surface | How to integrate |
|---|---|
| Static HTML | div + embed.js |
| Next.js / React | embed.js or @muxforms/react |
| WordPress | Custom HTML block + embed.js |
| Expo / React Native | fetch POST JSON + ingest secret |
| Server Action | POST JSON with ingest secret |
| Your API | Integrations → Custom URL — signed POST per submission |
Core
Frameworks
Next.js
App Router contact forms without a custom /api/contact route.
Remix
Remix contact route with root Scripts and client mount.
Astro
Islands-friendly contact embed on Astro static or SSR sites.
Nuxt
Nuxt 3 contact page with client-only embed script.
Vue
Vue 3 contact embed with onMounted mount.
SvelteKit
SvelteKit contact route with onMount embed.
Gatsby
Gatsby static sites and Gatsby Cloud with embed.js.
Angular
Angular contact component with AfterViewInit mount.
Static & hosting
HTML
Plain HTML contact page with embed.js—no build step.
Vercel
MuxForms on Vercel-hosted Next.js, SvelteKit, or static exports.
Netlify
Netlify static sites and SSR frameworks with MuxForms embed.
Cloudflare Pages
Contact forms on Cloudflare Pages static deployments.
GitHub Pages
MuxForms embed on user/org GitHub Pages sites.
Hugo
Hugo partial with MuxForms embed for static contact pages.
Jekyll
Jekyll include for GitHub Pages contact forms.
Eleventy
11ty shortcode or Nunjucks include for MuxForms.
Site builders & commerce
WordPress
Contact forms via Custom HTML block—no plugin or PHP mail.
Webflow
Embed MuxForms in Webflow via Embed element or custom code.
Framer
Framer Embed component with MuxForms script.
Wix
Wix HTML embed or Velo fetch to MuxForms.
Squarespace
Squarespace Code block with MuxForms embed.
Shopify
Theme section or page template with MuxForms embed.
Ghost
Ghost theme contact page with Code injection or HTML card.
Carrd
Carrd Embed element for one-page contact sections.
Mobile & no-code
React Native
POST JSON from native UI; same inbox as website embeds.
Expo Router
Expo Router screens POST contact JSON to MuxForms.
Flutter
Dart http client POST to MuxForms submit API.
Swift
URLSession POST for iOS and macOS contact forms.
Kotlin
OkHttp or Ktor POST for Android contact screens.
Bubble
Bubble API Connector POST to MuxForms submit.
Common questions
- Where do I find my form id?
- Open the form in the MuxForms dashboard and copy the UUID shown for embed and API use.
- Why is my embed submission blocked?
- Add the exact site origin (scheme + host) to the form allowlist and ensure the submit token flow is used in the browser.
- What Content-Type does the API expect?
- application/json with field names that match the published schema.
- Do native apps need CORS?
- No. Native clients should send the per-form ingest secret instead of relying on browser CORS.
Docs are shorter when the product is smaller.
Create a form, copy the id, ship.
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