Toimii has soft launched, so these guides describe a service you can sign up for and use today. A few pieces are still on the way — the iOS and Android apps arrive later in 2026.

The simplest way to add a contact form to a plain HTML page

Two lines anywhere in <body>. No build step, no dependencies. If you can save and upload, you can do this.

<script src="https://cdn.toimii.io/components/your-code.js" async></script>
<toimii-your-code></toimii-your-code>

Does this actually work?

Yes — and this is the simplest case. Plain HTML has no plugin sandboxing, no editor strips scripts, no plan tier. The two lines work anywhere you can save and upload an .html file.

Step by step

Open your .html file

Open the .html file you want the form on, in a plain text editor.

Paste the embed code

Paste the two lines from your Toimii dashboard inside <body>, exactly where you want the form to appear.

Save and upload

Save the file and upload it the way you normally publish. Then open the published page and send yourself a test message.

Gotchas

Both lines or neither: the script defines the element, the tag places it. Paste the tag alone and the browser draws nothing, with no error to find.
A word processor swaps straight quote marks for curly ones. The browser then reads the curly marks as part of the address, so the script never loads. Use a plain text editor.
If you set a Content-Security-Policy — as an HTTP response header or a <meta> tag — allow cdn.toimii.io in script-src and api.toimii.io in connect-src. script-src covers loading the component; connect-src covers submitting the form. Most plain HTML pages have no CSP at all.

Frequently asked

Do I need a backend or PHP?

You don't need a server of your own. Submissions go straight from the form to Toimii's API — your HTML page can be served from anywhere, even a free static host.

Can I open the .html file directly with file://?

It renders, but nothing you send arrives. Submissions are accepted only from the domain you listed in Toimii, and a page opened from disk has no domain to match — the send fails with a generic error. Check the layout from disk; test sending on the uploaded page.

Embedding on a different platform?

Same two lines of code, picked apart for each platform.

WordPress

Custom HTML block, Block Editor or Classic. No plugin install. One catch — your user role needs the unfiltered_html capability.

Read the full guide

Squarespace

Drop a Code Block on any page. Needs a plan whose code blocks are allowed to run JavaScript.

Read the full guide

Webflow

Drag in a Code Embed element and paste the two lines. Custom code is a paid capability in Webflow — the one condition.

Read the full guide

Wix

Use Wix's Custom Element: your component's script URL in Server URL, its tag in Tag Name. The HTML embed won't work — it's a sandboxed iframe.

Read the full guide

Shopify

Add a Custom Liquid section in the Shopify theme editor — no app install, no theme code editing. Checkout pages are the one place it can't go.

Read the full guide

Static Sites

Astro, Hugo, 11ty, Jekyll — same two lines in your layout template. Builds stay fast.

Read the full guide

React / Vue / Angular

Use the custom element straight in JSX, Vue templates, or Angular components. No wrapper component, no extra package.

Read the full guide

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