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Tools  /  Generators  /  CSS Form Generator

CSS Form Generator

Build a whole form — define fields as "Label | type | required" (text, email, tel, textarea, select, checkbox, radio, date, number, file), a one or two column layout, fieldset groups, a top / floating / inline label mode, an outline or filled field style, a card wrapper, submit and cancel buttons, and a theme — with a live preview and HTML + CSS + JS output, or a React / Vue / Tailwind component.

What this tool does

It builds the markup, styles and validation JavaScript for a full form from a compact field list, and renders it live.

Defining fields

One per line: Label | type | required. Types include text, email, tel, textarea, select:A;B;C, checkbox, radio:A;B;C, date, number and file. A line starting with > is a fieldset heading; -- forces a full-width field in a two-column layout.

Layout

One column, or two columns that collapse to one on narrow screens. Textareas and grouped fields span both columns.

Label mode

Labels above each field, floating labels that lift on focus / value (no JS), or inline labels beside the control.

Validation

The JS checks each field on submit, shows an inline message under the invalid one, focuses the first error, and only then lets the form submit.

Output

HTML + CSS + JS, one file, or a React / Vue / Tailwind component.

Privacy

Everything runs in your browser. Nothing is uploaded.

Frequently asked questions

How do I add a section heading?
Start a line with "> ", e.g. "> Contact details". It becomes a inside a
wrapping the fields that follow it until the next heading.
How do I make one field span both columns?
Prefix its line with "-- ", e.g. "-- Message | textarea | required". Textareas span full width automatically.
Do floating labels need JavaScript?
No. They use :placeholder-shown and :focus-within; the placeholder is a single space so the "empty" check works. Select and checkbox fields fall back to a top label.
What does the validation JS do?
On submit it runs the browser's checkValidity() per field, writes validationMessage into a slot under the field, adds an .is-invalid class, focuses the first bad field, and calls preventDefault() if anything failed.
Is anything sent to a server?
No. The form is generated entirely in your browser; wire the action/onSubmit to your own endpoint.
Theme Accent