Markdown Previewer
Write and preview Markdown in real time
About the Markdown Previewer
Markdown has become the standard for writing documentation, README files, and technical content because it's readable as plain text but renders beautifully as HTML. The Markdown Previewer lets you write Markdown syntax in a split-pane editor and see the rendered HTML preview in real-time, supporting GitHub Flavored Markdown with tables, task lists, and syntax highlighting.
Developers write README files and documentation, bloggers draft posts in Markdown before publishing, and technical writers create API documentation and guides. The previewer supports code blocks with syntax highlighting for dozens of programming languages, making it ideal for technical content.
Because rendering happens entirely in your browser using JavaScript libraries, you can write sensitive documentation, internal guides, or unpublished content without worrying about data leaving your device. The toolbar provides quick access to common Markdown formatting without memorizing syntax.
How to Use the Markdown Previewer
- Type or paste your Markdown content in the left editor panel—the preview updates in real-time as you type.
- Use the toolbar buttons for common formatting: bold, italic, headings, lists, links, images, and code blocks.
- For code blocks with syntax highlighting, specify the language after the opening backticks (e.g., ```javascript for JavaScript).
- Switch between editor and preview modes or use the split view to see both simultaneously.
- Copy the rendered HTML or download the Markdown file when you're ready to publish or save your work.
Why Use ToolForge’s Markdown Previewer
- All Markdown rendering happens locally in your browser using JavaScript—your content is never sent to any server, ensuring privacy for sensitive documentation and unpublished drafts.
- Supports GitHub Flavored Markdown (GFM) including tables, task lists, strikethrough, autolinks, and syntax highlighting, making it compatible with GitHub and other GFM platforms.
- Real-time preview updates as you type, so you can instantly see how your formatting renders without needing to switch between editor and preview modes repeatedly.
- Syntax highlighting for code blocks supports dozens of programming languages, making it ideal for technical documentation, API guides, and developer-focused content.
Frequently Asked Questions
What Markdown syntax is supported?
The previewer supports GitHub Flavored Markdown (GFM), including tables, task lists, strikethrough, autolinks, and more. It also supports standard Markdown syntax like headers, lists, links, images, and code blocks. This ensures compatibility with GitHub and other GFM platforms.
Can I export the rendered Markdown?
Yes, you can copy the rendered HTML to paste into websites, emails, or documents that support HTML. You can also download the raw Markdown file to save your work locally or use it in other Markdown editors.
Is my content saved or stored anywhere?
No, all content stays in your browser's memory while you're working. Nothing is sent to servers or stored in databases. Your Markdown content remains completely private and secure, even if you're writing sensitive documentation.
Can I use syntax highlighting for code blocks?
Yes, the previewer supports syntax highlighting for code blocks in dozens of programming languages. Simply specify the language after the opening backticks (e.g., ```javascript, ```python, ```rust) and your code will be beautifully highlighted.
Does this support tables and task lists?
Yes, as part of GitHub Flavored Markdown support, you can create tables using pipe and hyphen syntax, and task lists using square brackets with x or space for checked/unchecked items. Both render correctly in the preview.
