How do collapsible sections work in Markdown?

They use HTML and tags, which are supported in GitHub Flavored Markdown.

Can I nest collapsible sections?

Yes, you can nest blocks inside each other.

Collapsible Section Generator

Create HTML details/summary blocks that work in GitHub Flavored Markdown. Build collapsible sections for FAQs, long code blocks, or supplementary content.

Section 1

Summary (visible when collapsed)

Content (visible when expanded)

Output

<details>
<summary>Click to expand</summary>

Hidden content goes here.

</details>

Frequently Asked Questions

How do collapsible sections work in Markdown?: They use HTML <details> and <summary> tags, which are supported in GitHub Flavored Markdown.
Can I nest collapsible sections?: Yes, you can nest <details> blocks inside each other.

Related Tools

Markdown Table Generator

Generate Markdown tables visually. Free online Markdown table generator with a spreadsheet-like interface.

Table of Contents Generator

Generate a Markdown table of contents from your document. Free online TOC generator with anchor links.

README Generator

Generate a professional GitHub README.md. Free online README generator with templates and badges.

Slug Generator

Generate URL-friendly slugs from Markdown headings. Free online slug generator for anchor links.

About Collapsible Section Generator

Generate collapsible/expandable sections for Markdown. Free online details/summary block builder. This tool runs entirely in your browser — no data is sent to any server. Your content stays private and secure. MarkdownMe provides free, fast, and reliable Markdown tools for developers, writers, and anyone who works with Markdown.