Nextjs Darkmode
Nextjs Darkmode is a versatile library crafted to fully utilize React 18 server components, ensuring a seamless dark mode experience in Next.js applications. Lightweight and efficient, it respects both user preferences and system settings through the prefers-color-scheme media query, and integrates effortlessly with React/Vite, Remix, and Next.js.
Motivation
The nextjs-themes
library was initially created to achieve a similar functionality to next-themes
with React Server Components. While effective, it felt bulky for those supporting only dark/light mode. Thus, nextjs-darkmode
was developed to offer a minimal footprint while utilizing Next.js Server Components, avoiding any flash of unthemed content, and ensuring theme synchronization with the server.
For migration guide please refer Project Wiki
Features
-
✅ Simple API to toggle between dark and light modes
-
✅ Perfect dark mode with just 2 lines of code
-
✅ Compatible with Tailwind CSS, StyledComponents, emotion, Material UI, ...
-
✅ Secure by design - we support nonce
when you want to apply Content Security Policy
-
✅ Fully treeshakable (e.g., import from nextjs-darkmode/hooks
)
-
✅ Full TypeScript support
-
✅ Utilizes React 18 Server components
-
✅ Compatible with all React 18 build systems/tools/frameworks
-
✅ System setting with prefers-color-scheme
-
✅ Supports Next.js 13 & 14 appDir
-
✅ No flash on load (supports SSG, SSR, ISG, and Server Components)
-
✅ Sync theme across tabs and windows
-
✅ Apply custom transitions when changing themes
-
✅ Manipulate theme via the useMode
hook
-
✅ Comprehensive documentation with Typedoc
Feel free to request new features, discuss, or report bugs.
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Getting Started
Installation
$ pnpm add nextjs-darkmode
or
$ npm install nextjs-darkmode
or
$ yarn add nextjs-darkmode
Import Styles
PLease make sure you set "moduleResolution"
to "Bundler"
, "Node16"
or "NodeNext"
in your tsconfig file for export field in package.json to work properly. (Ref)[https://stackoverflow.com/a/74462490/23175171]
You may need to import styles from nextjs-darkmode/dist/index.css
depending on your bundler configuration.
Import styles globally or within layout component.
@import "nextjs-darkmode/css";
import "nextjs-darkmode/css";
Lite Version
For a lighter version, use nextjs-darkmode-lite
:
$ pnpm add nextjs-darkmode-lite
or
$ npm install nextjs-darkmode-lite
or
$ yarn add nextjs-darkmode-lite
You need r18gs
as a peer-dependency.
Usage
Please explore examples
and packages/shared-ui
for more working examples. (updates coming soon...)
SPA (e.g., Vite, CRA) and Next.js pages directory
Modify _app
to add dark mode support:
import { Core } from "nextjs-darkmode";
import { Switch } from "nextjs-darkmode/switch";
function MyApp({ Component, pageProps }) {
return (
<>
<Core />
<header>
<Switch />
</header>
<Component {...pageProps} />
</>
);
}
export default MyApp;
⚡🎉Boom! Just a couple of lines and your dark mode is ready, complete with a color switch for user preferences. Check out examples for advanced usage.
For vite
or any other build tool, find a similar root component, e.g., <App />
in CRA
and vite
.
With Next.js app
router
Update app/layout.jsx
to add Core
component.
import { Core } from "nextjs-darkmode";
export default function Layout({ children }) {
return (
<html lang="en">
<head />
<body>
<Core />
{children}
</body>
</html>
);
}
Switch
An elegant color switch to toggle color schemes:
<Switch />
HTML & CSS
Fully support dark mode, including system preference with prefers-color-scheme
. The dark/light mode is synced between tabs and modifies the className
and data-attributes on the html
elemnt.
:root {
--background: white;
--foreground: black;
}
.dark {
--background: black;
--foreground: white;
}
[data-rm="dark"] {...}
Using the data-attributes
data-attributes are very helpful when you want to customize styles in a CSS module file (styles.module.css
)
data-rm
-> Resolved Mode
data-m
-> User's preference
data-sm
-> System preference
Content Security Policy
If you are using CSP rules for CSS files, you can pass nonce
argument to the Core
component. If nonce
is not supplied transition styles will not be applied. This may allow patched transitions throught the page in some cases.
<Core nonce={yourNonce} t="transition: all .5s" />
Images
Show different images based on the current theme:
import Image from "next/image";
import { useMode } from "nextjs-darkmode/hooks";
function ThemedImage() {
const { resolvedMode } = useMode();
let src;
switch (resolvedMode) {
case "light":
src = "/light-mode-image.png";
break;
case "dark":
src = "/dark-mode-image.png";
break;
default:
src = "/default-image.png";
break;
}
return <Image src={src} alt="Themed Image" />;
}
useMode
The useMode
hook provides mode information:
import { useMode } from "nextjs-darkmode";
const ThemeChanger = () => {
const { resolvedMode, setMode } = useMode();
return (
<div>
The current resolved mode is: {resolvedMode}
<button onClick={() => setMode("light")}>Light Mode</button>
<button onClick={() => setMode("dark")}>Dark Mode</button>
</div>
);
};
useMode
hook returns the following object:
export interface UseModeInterface {
mode: ColorSchemePreference;
systemMode: ResolvedScheme;
resolvedMode: ResolvedScheme;
setMode: (mode: ColorSchemePreference) => void;
}
Force per page mode
Apply appropriate class names and data attributes to force a mode for the page:
export default function Page() {
return <div className="dark ndm-scoped data-rm='dark'">...</div>;
}
With Styled Components and any CSS-in-JS
Next Themes works with any library. For example, with Styled Components:
import { createGlobalStyle } from "styled-components";
import { Core } from "nextjs-darkmode";
const GlobalStyle = createGlobalStyle`
:root {
--fg: #000;
--bg: #fff;
}
[data-rm="dark"] {
--fg: #fff;
--bg: #000;
}
`;
function MyApp({ Component, pageProps }) {
return (
<>
<GlobalStyle />
<Core />
<Component {...pageProps} />
</>
);
}
With Tailwind
In tailwind.config.js
, set the dark mode property to class:
module.exports = {
darkMode: "class",
};
Now you can use dark-mode specific classes:
<h1 className="text-black dark:text-white">
Performance
nextjs-darkmode
is designed to be fully tree-shakable, including only the code you use. For instance, if you only use the useMode
hook, the rest of the library's code will be removed during the build process.
Contributing
We welcome contributions! Check out the Contributing Guide for more details.
🤩 Don't forget to star this repo!
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License
MPL-2.0
Feel free to use, modify, and distribute this library under the MPL-2.0 license.
Please consider enrolling in our courses or sponsoring our work.
with 💖 by Mayank Kumar Chaudhari