SQL Formatter
Beautify long one-line SQL queries and ORM logs into clean, indented, syntax-highlighted SQL, or minify them.
Markdown Editor & Previewer
Write Markdown on the left and see a live GitHub-style preview on the right. Perfect for README files. Free, private, and 100% in your browser.
Markdown
Preview
External images are blocked for privacy. Turn on "Load external images" to show them.
Write and Preview Markdown Online
Markdown is the plain-text format used for README files, documentation, wikis, and comments on GitHub, GitLab, and many other platforms. This editor shows the formatted result while you write, so you can get headings, lists, tables, and code blocks right before you commit.
# Heading 1 **bold** *italic* ~~strikethrough~~
## Heading 2 `code` [link](https://example.com)
- bullet list 1. numbered - [ ] task 
> quote --- (rule) ```js (code block)Features
Live GitHub-style preview
See your document rendered as you type, styled like README files on GitHub, in light or dark mode.
GitHub Flavored Markdown
Tables with alignment, task lists, strikethrough, fenced code blocks, autolinks, heading anchors, and alerts like > [!NOTE] and > [!WARNING].
Toolbar and shortcuts
Bold, italic, links, images, code, quotes, lists, tables, and rules with one click, or Ctrl+B, Ctrl+I, and Ctrl+K.
Export Markdown or HTML
Download README.md, copy the generated HTML, or download a styled standalone HTML page.
Autosaved drafts
Your draft is saved in this browser's local storage, so a refresh or closed tab does not lose your work.
Safe preview
The preview runs in a sandbox with scripts disabled, and external images load only when you allow them.
How to Use the Markdown Editor
- Type Markdown in the editor, or start from the sample README.
- Use the toolbar or keyboard shortcuts to add formatting.
- Check the live preview; switch to Editor or Preview view for more space.
- Download README.md or the HTML, or copy either to the clipboard.
Frequently Asked Questions
Is this the same Markdown that GitHub uses?
It follows CommonMark plus the GitHub Flavored Markdown extensions: tables, task lists, strikethrough, and autolinks, and GitHub's alert syntax. Preview styling matches GitHub closely, so it is a good way to check a README before pushing it.
Where is my document saved?
Only in your browser's local storage on this device. It is never uploaded. Clearing your browser's site data or clicking Clear removes it.
Why are images from other websites not shown?
Loading an external image sends a request to that server, which reveals your IP address. Images are therefore blocked by default. Turn on "Load external images" to show badges and screenshots from other sites.
Can I use HTML inside Markdown?
Yes. HTML blocks and inline tags such as <details>, <kbd>, or <img width="200"> are rendered in the preview. Scripts never run, because the preview is sandboxed.
How do I make a table in Markdown?
Separate cells with pipes and put a line of dashes under the header row, for example | Name | Age | followed by |------|-----|. Add colons to align a column: :--- for left, :---: for center, and ---: for right. The Table toolbar button inserts a template.
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