Can I use target=_blank inside standard Markdown?

No. Standard Markdown does not define link attributes. Use allowed HTML or a documented renderer extension.

Why add rel=noopener?

It prevents the new page from using the opener reference to interact with the page that created it.

Will every Markdown website allow HTML anchors?

No. Platforms differ. Some allow selected tags, some sanitize attributes, and some disable raw HTML.

Should all external links open in a new tab?

No. Use that behavior selectively. Consistent site conventions and clear link labels usually help readers more than a blanket rule.

Open Markdown Links in a New Tab

Standard Markdown does not define a target attribute, so `[Read more](https://example.com)` cannot request a new browser tab by itself. If your Markdown renderer allows raw HTML, use `<a href="https://example.com" target="_blank" rel="noopener">Read more</a>`. Some platforms provide a link option or a renderer extension instead. Use the documented method for the platform that publishes your content. A new tab can interrupt a reader’s navigation, so apply it selectively and make the link destination clear.

Why ordinary Markdown cannot set a new tab

Markdown links focus on the destination and visible label. The standard inline form is `[Link text](https://example.com)`. It does not expose HTML attributes such as `target`, `rel`, `download`, or `aria-label`. A target value belongs to the generated HTML, not to the core Markdown link grammar. Some processors support extensions such as attribute lists, but those extensions are not portable. A syntax that works in one editor can appear as literal text or lose its attributes after publication elsewhere. Check the documentation for the exact processor, version, and hosting service before relying on an extension.

Use an HTML anchor when permitted

An HTML anchor gives you direct control: `<a href="https://example.com" target="_blank" rel="noopener">External documentation</a>`. The `_blank` target asks the browser to open the destination in a new browsing context. The `noopener` relationship prevents the opened page from using `window.opener` to reach the original page. Modern browsers often provide related protection, but explicitly adding `noopener` communicates the intended security behavior and supports older environments. `noreferrer` also suppresses the referrer in browsers that implement it, but it can affect analytics and referral information. Use it only when that privacy change is wanted. A sanitizer may remove target or relationship attributes.

Make the behavior predictable for readers

Do not force every link into a new tab. Readers may expect internal links to stay in the current tab and external references to open separately. Follow the conventions of your documentation site and accessibility guidance. A visible label such as `External API reference` gives more context than `Click here`. If you use an icon or text marker for external links, ensure it remains understandable to screen-reader users. Test keyboard activation, browser back behavior, mobile navigation, and the final rendered HTML. Preview behavior inside an editor is not proof that the production site preserves the attribute. If a platform blocks raw HTML, use its supported link component, editor control, or template-level rule.

How do you do it step by step?

1Write the normal Markdown link first and confirm that the destination and label are useful.
2Check whether the target renderer supports raw HTML or a documented link-attribute extension.
3Use an anchor with `target="_blank"` and `rel="noopener"` only when a new tab serves a clear purpose.
4Avoid relying on unsupported attribute syntax that the final renderer may expose as text.
5Test the published link with a keyboard, mobile browser, and the page’s final HTML.

Working example

This HTML example opens an external reference in a new browsing context and keeps the relationship explicit.

Input

<a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a" target="_blank" rel="noopener">HTML anchor reference</a>

Result

A reader activates the link and the browser requests a new tab or window according to browser preferences.

The browser controls whether the new context is a tab or window. A Markdown host can remove the attributes before delivery.

Frequently asked questions

Can I use target=_blank inside standard Markdown?: No. Standard Markdown does not define link attributes. Use allowed HTML or a documented renderer extension.
Why add rel=noopener?: It prevents the new page from using the opener reference to interact with the page that created it.
Will every Markdown website allow HTML anchors?: No. Platforms differ. Some allow selected tags, some sanitize attributes, and some disable raw HTML.
Should all external links open in a new tab?: No. Use that behavior selectively. Consistent site conventions and clear link labels usually help readers more than a blanket rule.