JSON to Markdown
Turn JSON data into readable Markdown tables and lists.
Text tool
Markdown to HTML Converter
Paste Markdown and get clean, standard HTML instantly, with a live preview so you can see the rendered result as you go. Tables, lists, code blocks, and links all convert to semantic markup you can copy straight into a page, CMS, or email. Everything runs 100% client-side in your browser.
100% client sideLive previewNo data sent
What Markdown Is and Why It Stuck
Markdown is a plain-text formatting syntax that John Gruber created in 2004 with Aaron Swartz. The whole idea is that the source should be readable as-is. You do not stare at a wall of angle brackets to figure out what the text says; you just read it, the way you would read an email. A hash means a heading, asterisks mean emphasis, and a hyphen starts a list. That is most of it.
Developers adopted it for reasons that go beyond looks. Because a Markdown file is plain text, it lives happily in Git, so every edit shows up as a clean line-by-line diff in code review. It is portable, opening in any editor on any operating system, and it will still be readable in twenty years when today's word processor formats are long forgotten. That combination of human-friendly and machine-friendly is why READMEs, changelogs, and documentation almost all run on it now.
Markdown Syntax Cheat Sheet
You can learn the practical core in a couple of minutes. Here is the syntax that covers the vast majority of what people write day to day.
| Element | Syntax |
|---|---|
| Heading | # H1 ## H2 ### H3 |
| Bold | **bold text** |
| Italic | _italic text_ |
| Link | [text](https://url) |
| Image |  |
| Inline code | `const x = 1` |
| Code block | ``` fenced block ``` |
| List | - item or 1. item |
| Blockquote | > quoted line |
| Horizontal rule | --- |
| Table | | col | col | |
CommonMark vs GitHub Flavored Markdown
The original spec left some corners ambiguous, so different tools rendered the same file differently. CommonMark is the community effort to pin down one precise, unambiguous specification, and it is what most serious parsers target today. GitHub Flavored Markdown, or GFM, builds on CommonMark and adds the features people kept asking for: tables, task lists with checkboxes, strikethrough with double tildes, and automatic linking of bare URLs.
In practice you will meet Markdown almost everywhere text is entered. GitHub and GitLab, Reddit comments, Discord messages, Notion, Obsidian, and every static site generator from Jekyll to Hugo to Astro all speak it. Learn it once and you can format text in a dozen apps without touching a mouse.
The converter above turns your Markdown into clean, standard HTML you can paste straight into a web page, a CMS, or an email template. Everything is processed locally in your browser, so an unpublished draft never leaves your machine.
Need something else? Explore every text tool in one place, all free and client-side.