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?
- No. Every Toolbit tool runs entirely in your browser using standard Web APIs. Your input is never uploaded, logged, or sent to a third party — you can open the network tab and watch it stay quiet.