Markdown Editor

What is a Markdown editor?

A Markdown editor is a tool that allows you to edit text written in Markdown syntax while previewing how it will actually appear. Markdown uses simple symbols such as “#” for headings, “-” for bulleted lists, and “**” for bold text.It is easier to read and write than directly writing HTML tags, and is used in a wide range of contexts, including READMEs, technical documents, blog posts, notes, specifications, and chat messages.

This tool provides a real-time preview of your input.You can insert formatting such as bold, italics, headings, quotes, code, links, images, lists, and tables directly from the toolbar, so you don’t need to remember all the Markdown syntax. In addition to copying the Markdown you’ve entered, you can copy the converted HTML or save it as a .md or HTML file.

The supported syntax varies depending on the Markdown dialect and the service being used. In addition to commonly used syntax, this tool provides simplified support for strikethrough, checklists, code blocks, and tables. When pasting into GitHub, blog services, CMSs, or other platforms, please verify the final display on the destination site.

The text you enter is not sent to the server; it is converted using JavaScript within the browser. While this design makes it easy to use for drafts before publication or internal documents, content may remain in the browser history or clipboard on shared devices. Please follow the rules of your work environment regarding the handling of confidential information.

Key Features

• The preview updates as you type.
• You can display headings, emphasis, quotes, lists, code, links, images, and tables.
• You can easily insert Markdown syntax from the toolbar.
• You can copy both the Markdown and the resulting HTML.
• You can save .md and HTML files.
• You can check the character count, word count, and line count.
• Input data is processed within the browser.

How to Use

1. Enter Markdown in the input field on the left.
2. Insert formatting from the toolbar as needed.
3. Check the display in the real-time preview on the right.
4. If you want to view this in a separate window for easier reading, click “View in a separate window.”
5. Copy and save the Markdown or HTML as needed.

Precautions for Use

• The scope of Markdown support and display methods vary by service.
• For safety reasons, the preview treats entered HTML tags as plain text rather than executing them.
• External images are displayed by accessing the source of the image URL.
• For very long sentences, the preview may take some time to update depending on your device's performance.
• When using the converted HTML, please verify that it complies with the security requirements of the destination site.

Frequently Asked Questions

What is Markdown?

A lightweight markup language that uses symbols to represent headings, emphasis, lists, links, and more. It is characterized by its ability to preserve the readability of the original text.

Will the text I enter be sent to the server?

No. The conversion from Markdown to HTML and the preview are performed within the browser.

Can I enter HTML tags directly?

You can enter text, but for security reasons, it will be displayed as plain text rather than executed as HTML. Please use Markdown syntax.

Is it fully compatible with GitHub Flavored Markdown?

In addition to standard Markdown, we provide basic support for key formatting elements such as tables, checklists, and strikethroughs; however, this does not fully replicate all of GitHub’s proprietary specifications.

Will the code blocks be color-coded?

Code fences that specify a language name are output with a `class` attribute, but since this page does not use a syntax highlighting library, automatic color coding is not performed.

Can you convert Markdown to HTML?

Yes. You can get the HTML used for the preview by clicking "Copy HTML" or "Save HTML."

Can I save Markdown files?

Yes. Clicking “Save .md” will save your entries as a UTF-8 Markdown file.

How do you write a table?

Enter the heading on the first line, hyphen-separated items on the second line, and data separated by vertical lines on the third line and beyond. You can insert a template using the table button on the toolbar.

Why aren't line breaks showing up in the preview?

In Markdown, a single line break is treated as a single paragraph. To create a new paragraph, insert a blank line; to force a line break, insert two half-width spaces at the end of the line.

Can I embed an image?

Yes. You can specify the URL where the image is hosted. However, we do not upload local files or save them to the server.

Is it available on smartphones?

Yes. On narrow screens, the input field and preview are arranged vertically, so you can edit content even on a smartphone.

Can I publish the copied HTML as-is?

You can use this as basic HTML, but please be sure to check it before publishing, as the display may vary depending on the CSS and security settings of the live site.