Open Links in a New Tab in your MDX Blog (Next.js 13)

In order to keep users on your site you may want to open external links in your blog into new tabs (to keep your blog open in another tab). To do this in your MDX Next.js blog is very easy; you will simply need to create 1 component and add it to your mdx configuration.

In MDX you can open external links in a new tab by overriding the default component for “a” tags with a custom one. To do this create a new component called CustomLink.

// components/mdx/CustomLink.tsx
import Link from "next/link";

export default function CustomLink(props : any){
    const href = props.href;
    const isInternalLink = href && (href.startsWith('/'));

    if (isInternalLink) {
      return (
        <Link href={href}>

    return <a target="_blank" {...props} />;

This component checks the "href" prop to check if it starts with "/". If so this is an internal link and will use the default Next.js link component. Otherwise it'll fallback to a a tag with target="_blank" which opens the link in a new tab.

2. Add to MDX Configuration

You then need to add this component to your mdx configuration and override the default a tag component. Whether you are using MDXRemote or the default @next/mdx depends on how you overwrite the default a component:

With MDXRemote

// app/blog/[slug]/page.tsx
import CustomLink from '@/components/mdx/CustomLink';


<MDXRemote source={props.content} components={{a: CustomLink}} />

With @next/mdx

With @next/mdx you can either use the useMDXComponents method or via the MDXProvider component

Using useMDXComponents:

// mdx-components.tsx
import CustomLink from '@/components/mdx/CustomLink';


export function useMDXComponents(components: MDXComponents): MDXComponents {
  return {
    a: CustomLink,

Using MDXProvider:

// app/blog/[slug]/page.tsx
import CustomLink from '@/components/mdx/CustomLink';


<MDXProvider components={{a: CustomLink }}>
      {/* Render your MDX content */}