Choose input
Enter Markdown or load the example.
Markdown to HTML
Convert Markdown into sanitized HTML and preview it.
Last reviewed: · Testing methodology
How to use
Convert Markdown to sanitized HTML locally. Preview runs in a sandbox that blocks external resources.
Set options
Convert and inspect the HTML and preview.
Use the result
Copy or download the generated HTML.
Examples and checks
Worked example
Use the settings below and inspect the saved result.
- Input
- # Example **Bold**
- Output
- <h1>Example</h1> and <strong>Bold</strong> in sanitized HTML
Limits and questions
Inputs are processed in your browser. Analytics and advertising can make separate network requests.
Supported behavior
Convert Markdown to sanitized HTML locally. Preview runs in a sandbox that blocks external resources.
Limits and review
1 million input characters. Unsafe markup is removed. External images and links do not load in the preview.
Verification
Review record: 2026-08-26. See the documented behavior and limitations above, and the testing standards for the scope of review.
Testing methodologyWhen to use another workflow
Use the target static-site generator or Markdown pipeline when plugins, frontmatter, syntax highlighting, or exact production parity is required.
Frequently asked questions
- What are the limits?
- 1 million input characters.
- What should I check before using the output?
- Unsafe markup is removed. External images and links do not load in the preview.