HTMLStarter

theme-switcher — HTML Starter Template

By alexandersandberg

A theme switcher implemented with CSS only, toggling between light and dark themes via a checkbox or radio buttons, without relying on JavaScript.

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Recorded 2026-10-02View source

What stands out

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Theme switching implemented with CSS only, without relying on JavaScript

Provides two versions: checkbox for two themes and radio buttons for multiple themes

After downloading the files, open index.html to view locally

Provides an online demo page via GitHub Pages

MIT licensed, permitting use, modification, commercial use, and distribution

Template Details

This project provides two pure CSS approaches to website theme switching: one uses a checkbox to toggle between two themes, and the other uses radio buttons to support any number of themes. The repository consists of HTML and CSS; after downloading, open index.html directly to see the effect, or view the online demo via GitHub Pages. The author has also written an article explaining the implementation.

Because the switching logic is driven entirely by CSS selectors and form control states, the approach involves no JavaScript runtime and is suitable as a reference implementation for theme switching in static pages or lightweight sites.

Note that the project is positioned as a demo and example code; the repository does not provide build tools, package management configuration, or framework integration instructions. The number of themes, style structure, and interaction details are subject to the actual files in the repository.

HTMLStarter

Is it right for your project?

Use Cases

Add light/dark theme switching to static HTML pages
Use the radio button version when multiple color schemes need to be supported
Learn how to write pure CSS state selectors and form-control-driven style switching
Serve as a reference implementation for theme switching in lightweight sites or demo pages

Suitable For

Static sites using pure HTML and CSS
Projects that want to avoid introducing JavaScript theme switching logic
Developers who need to quickly view a theme switching implementation example
Users who accept adjusting styles themselves based on the example code

Getting started & customization

Use these recorded setup notes alongside the repository instructions for your chosen version.

1
After downloading the files from the repository, open index.html in a browser to see the effect.
2
You can also visit the GitHub Pages demo address directly to try it online.
3
The two versions correspond to checkbox for two themes and radio buttons for multiple themes; choose as needed.
4
The code is MIT licensed; when distributing, retain the copyright notice and license statement.
5
The repository does not provide build or package management configuration; theme styles need to be adjusted according to the actual page.

Read repository instructions

License & source material

Usage conditions & limitations

Free to use · keep license notice

This entry covers the free version under the MIT license from the public repository; the free scope is the code of this version and does not mean external services or third-party assets are free.

Must comply with when using

Permits free use, modification, commercial use, and distribution of this version's code.
When distributing copies or substantial portions of the code, retain the original author's copyright notice and the full MIT license statement.
The code is provided as is; warranties and limitations of liability are governed by the original license and applicable law.

Additional costs & items to verify

Demo images, fonts, icons, and other third-party assets must be checked against their respective licenses; they cannot be judged solely by the code's MIT license.
External services such as domains, hosting, databases, payments, or AI may incur additional charges.

View Original Text Basis

Permission is hereby granted, free of charge
Original License Text

https://github.com/alexandersandberg/theme-switcher/blob/master/LICENSE.md https://github.com/alexandersandberg/theme-switcher/blob/master/README.md

Compiled by DeepSeek based on repository license and README ·2026-10-02. Results only cover the materials read; dependencies, images, fonts, and subsequent term changes are subject to their respective original texts.

Project checks & description sources

Template Information

Source platforms: GitHub
Documentation and maintenance reference score: Partly documented · 72 / 100
Technologies: HTML
Website type: Starter

How this score is calculated

Our heuristic uses license records (up to 30), a demo link (12), a preview (10), stars (15), recorded maintenance (15), description completeness (8), feature records (5) and classification data (5). It is not a code, security or performance test, or a Google score. A link does not establish tested functionality.

What to verify for this project

Repository update recorded: 2024-02-03
Screenshot last checked: 2026-10-02

A demo link is listed. Check it with your own content and viewport sizes; its presence does not confirm that forms, authentication or payments work.

The catalog identifies HTML as the primary stack. Check the actual dependency manifest and lockfile for versions and hosting requirements. These notes use recorded metadata, not a code audit or a deployment test.

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How this description was prepared

AI-assisted description based on catalog records and repository material. Repository authors are not automatically the reviewers of this description.

Automatically checked against source and license rules; no manual editorial review.

Inspect the recorded source material

SHA-256: d8c214600cc872e5b6c50a61ed5ec91f4ac5aaae8415948ea2f73a658113be82

2026-10-02T16:22:05.162Z

Source file / repository

![Theme switcher preview](preview.png)

# CSS Only Theme Switcher

## About the project

This is a website theme switcher made with CSS only. There are two different versions of this:

1. Using a checkbox to switch between two themes
2. Using radio buttons for unlimited amount of themes

I also wrote [an article on my website](https://alexandersandberg.com/theme-switcher/) explaining the functionality behind this solution, for those interested.

## Usage

[**Check it out live**](https://alexandersandberg.github.io/theme-switcher/) _or_ download the files and open `index.html` in your preferred browser.

## A project by Alexander Sandberg

Thanks for checking out my project! ❤️

If you want to get in touch, or check out my other work, you can find me online here:

- [Website](https://alexandersandberg.com) (alexandersandberg.com)
- [Twitter](https://twitter.com/alexandberg) (@alexandberg)

## License

Distributed under the MIT License © [Alexander Sandberg](https://github.com/alexandersandberg)

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