Markdown Reader
Free Chrome extension that renders Markdown files in the browser, Mermaid diagrams, LaTeX math, dark mode and PDF export.
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Description
Free Chrome extension that renders Markdown files in the browser, Mermaid diagrams, LaTeX math, dark mode and PDF export. Nothing leaves your machine.
About Markdown Reader
What is Markdown Reader?
Markdown Reader is a free Chrome extension by Twistag that renders a .md file in the browser. There is no paid tier, no trial, and no account.
What Markdown Reader does
Open a local or remote markdown file in a tab and it renders headings, tables, blockquotes, lists, and collapsible sections. Fenced Mermaid blocks render as diagrams, including flowcharts, sequence diagrams, and quadrant charts. LaTeX renders as typeset math. Fenced code is highlighted by language. A toolbar switches among automatic, light, and dark themes, shows the raw source, copies the document, or exports a PDF. The PDF keeps the rendered formatting, diagrams included. The page says every file is parsed and rendered locally, with nothing uploaded and no network calls with the document.
Who Markdown Reader is for
Someone who wants to read a specification, a README, a runbook, or research notes in Chrome without pasting the file into a web tool. Twistag is in Lisbon.
How Markdown Reader works
Install Markdown Reader from the Chrome Web Store. There is no sign-in. Open the file in a tab and it renders with no further setup. The theme control cycles through automatic, light, and dark. Automatic follows the system setting. Copy, raw source, and PDF export are on the toolbar. The page says there is no account, no analytics, and no advertising, and that documents are not transmitted to Twistag or to anyone else.
Key features
- Renders a .md file in Chrome, with headings, tables, blockquotes, nested lists, and collapsible sections.
- Mermaid flowcharts, sequence diagrams, and quadrant charts draw inline.
- Inline and block LaTeX math, and syntax-highlighted fenced code.
- Automatic, light, and dark themes. Automatic follows the system setting.
- Copy the document, view the raw source, or export a PDF that includes diagrams.
- Parsed and rendered locally. Nothing is uploaded. No network calls with the document.
- No account, no analytics, and no advertising. Free, with no paid tier and no trial.
Facts from twistag.com, checked 13 October 2026
- The page says Twistag is in Lisbon.
- The page says the Chrome Web Store listing discloses that the developer will not collect or use your data.
- Themes are automatic, light, and dark.
- The about page describes Twistag's agency work and was not used as reader features.
Written from Markdown Reader's own website (Homepage, About). The maker can claim this listing to edit it.
Categories
Frequently asked questions
Is Markdown Reader free?
Yes. The page says it is free to install and use, with no paid tier, no trial period, and no account to create.
Are files uploaded?
No. Every file is parsed and rendered locally. Nothing is uploaded, and the extension makes no network calls with the document.
What can it render besides plain markdown?
Mermaid diagrams, LaTeX math, and syntax-highlighted code, plus tables, blockquotes, nested lists, and collapsible sections.
How do I open a file?
Install the extension from the Chrome Web Store, then open a local or remote .md file in a tab. The page says it renders automatically, with no further setup.
Can the rendered page be exported?
Yes. The toolbar can copy the document, show the raw source, or export a PDF. The page says the PDF keeps the rendered formatting, diagrams included.