ToolbitMarkdown Previewer with Live Rendering
Draft a README, a changelog, or a design doc and watch it render as you type. Output is sanitised before display, so pasted content cannot run scripts in your tab.
What the Markdown Previewer does
- GitHub-flavoured Markdown: tables, fenced code, task lists, strikethrough.
- Live side-by-side preview that scrolls with your cursor.
- Sanitised HTML rendering — pasted markup cannot execute.
- Copy the rendered HTML when you need it for a CMS.
How to use it
- Type or paste Markdown into the editor pane.
- Watch the rendered preview update alongside it.
- Copy either the Markdown or the generated HTML.
Why it runs locally
Toolbit has no backend. The Markdown Previewer is implemented with standard browser APIs, so your input is processed in the tab and never uploaded, logged, or retained. That is what makes it safe to paste real data into — and it is also why the tool keeps working with the network disconnected, once you have installed Toolbit as an app.
Frequently asked questions
- Which Markdown flavour is used?
- GitHub-flavoured Markdown, so tables, fenced code blocks, task lists, and autolinks all behave the way they do in a repository README.
- Is raw HTML in my Markdown safe?
- Rendered output is passed through DOMPurify before it is displayed, so scripts and event handlers in pasted content are stripped.
- Is my document uploaded?
- Local transformations process input in your browser. HTTP and WebSocket tools send user-initiated requests. Optional product analytics is off by default, excludes tool input and output, and stays off when your browser signals Do Not Track or Global Privacy Control.