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CSS Toggle Switch Generator

Generate a keyboard-operable CSS toggle switch with exact track and knob geometry.

Privacy: your files never leave your device. All processing happens locally in your browser.

How to use

  1. 1.Set track width, height, padding, duration, and off, on, and knob colors while toggling the preview.
  2. 2.Copy the CSS and HTML, then replace the example label with the actual binary setting.
  3. 3.Verify state wording, keyboard operation, focus contrast, zoom, forced colors, reduced motion, and persistence behavior in the product.

About CSS Toggle Switch Generator

CSS Toggle Switch Generator builds a custom on/off appearance around a native HTML checkbox. Adjust track width, track height, inner padding, transition duration, off color, on color, and knob color. The tool calculates the knob diameter and checked travel distance, renders a real interactive preview, and outputs synchronized CSS and accessible HTML. Everything runs locally in the browser. Settings and code are not uploaded, persisted, or sent to a component-generation service.

The example retains input type checkbox because a switch represents a binary form state. CSS appearance: none removes the default checkbox drawing, while the native input continues to support checked state, Space activation, focus, and form submission. The input is nested in visible label text, so the whole labeled area is clickable and the control has an accessible name. Replace Enable feature with a concise real-world state such as Email notifications or Dark mode. Do not use a switch when a one-time action button or a multi-option choice is more accurate.

Width accepts whole pixels from thirty-six through one hundred twenty. Height accepts whole pixels from twenty through sixty-four. Width must be at least eight pixels greater than height so the on and off positions remain visibly distinct. Padding accepts two through eight pixels and must leave a positive knob inside the track. Duration accepts whole milliseconds from zero through two thousand. The three colors require complete six-digit HEX input. Invalid combinations are rejected by pure logic instead of yielding negative sizes or a knob outside the track.

Knob size equals track height minus twice the padding. In the unchecked state, the knob begins at the selected padding. In the checked state, transform translateX moves it by width minus height. Those equations place the same padding at both ends because padding plus knob size plus travel simplifies to width minus padding. The generated output exposes these values directly in pixel declarations, so geometry can be reviewed instead of hidden behind a component dependency.

The track uses a pill-shaped border radius equal to half its height. The circular ::after knob uses half its own size as radius. Both the background color and transform share the selected transition duration with an ease timing keyword. Setting duration to zero removes visible interpolation without changing state. This can be useful for a reduced-motion override, though the copied baseline does not include a media query. If motion is decorative or a user requests reduced motion, consider overriding transition-duration to zero in the destination stylesheet.

The focus-visible outline remains on the native input and uses the selected on color. It is offset from the track rather than removed. Verify the outline against the real page background, because a color that is obvious in this preview may disappear in another theme. The generator does not add separate hover, active, disabled, invalid, loading, or read-only presentations. A production settings screen should make disabled controls understandable, keep error or help text associated with the field, and avoid changing server state before the user receives clear feedback.

Toggle the preview by clicking the track or label. Keyboard users should be able to Tab to it and press Space. Test that behavior again after integrating into React, Vue, or another framework; controlled state wiring can break native interaction if checked and change handlers are mismatched. Framework users can change class to className, but the semantic input and label relationship should remain. If the state change performs a network operation, handle pending and failure states outside this CSS instead of letting the visual switch promise a change that did not persist.

Copy CSS and Copy HTML request clipboard permission independently. The status message names the successful output, while denied access leaves the visible code available for manual selection. No JavaScript is included in the snippet because basic checkbox state needs none. The tool does not generate application settings logic, ARIA state synchronization for a non-native widget, analytics, persistence, API calls, or optimistic rollback. Those responsibilities belong to the product using the control.

Custom switches need accessibility and usability checks beyond valid CSS. Confirm that on and off are distinguishable by more than color, especially when the adjacent text does not make state obvious. Test contrast, keyboard order, zoom, touch target size, screen-reader announcements, forced-colors mode, high contrast, disabled state, and any asynchronous failure. Consider adding explicit state text when consequences are important. MDN documents appearance and native checkbox behavior, while CSS Basic User Interface provides the standards definition. The sizing equations and duration limits here are transparent local choices covered by boundary, geometry, and exact-output tests rather than claimed universal design rules.

Methodology & sources

Validate compatible integer dimensions and strict HEX colors, calculate knob size as height minus twice padding, calculate travel as width minus height, preserve a native labeled checkbox, and retain focus-visible styling.

Frequently asked questions

Why is the control implemented as a checkbox?
A native checkbox already models a binary form state and supplies checked state, Space activation, focus, and submission semantics that a decorative div would lack.
How is the knob travel distance calculated?
Travel equals track width minus track height, which preserves the selected inner padding at both ends when combined with the calculated knob size.
Does the generated code save a setting?
No. It supplies appearance and native interaction only; your application must persist state, report pending work, and recover from failed updates.
Can I remove the transition?
Yes. Set duration to zero, or add a reduced-motion media override in the destination stylesheet when motion should be disabled.

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