How do I enable file URL access for local markdown files?

Open your browser's extensions page (chrome://extensions/ for Chrome, edge://extensions/ for Edge), find MarkView, click Details, and toggle ON 'Allow access to file URLs'.

Can I use MarkView with GitHub markdown files?

Yes! Click the 'Raw' button on GitHub to view raw markdown files. MarkView will automatically render them beautifully with syntax highlighting and diagrams.

Does MarkView collect my data?

No. MarkView is privacy-first and does NOT collect any personal data. All markdown processing happens locally in your browser.

Which browsers does MarkView support?

MarkView works on all Chromium-based browsers including Google Chrome, Microsoft Edge, Brave, Opera, and Vivaldi. Install from Chrome Web Store or Microsoft Edge Add-ons.

Is MarkView free to use?

Yes! MarkView is free to use with no signup required. Core features including syntax highlighting, Mermaid diagrams, and math equations are available at no cost.

Why doesn't MarkView work on some websites?

MarkView renders raw markdown files, not websites that already display markdown. It works on local .md files, raw GitHub files (raw.githubusercontent.com), and URLs ending in .md served as plain text. It won't activate on GitHub blob pages, DeepWiki, ReadTheDocs, or other documentation websites because these are full web applications with their own markdown rendering.

Modern & Powerful

MarkView - Modern Markdown Viewer for Chrome, Edge & Chromium Browsers

Name: MarkView
Rating: 4.8 (150 reviews)
Author: MarkView

Transform your markdown files into beautifully formatted documents with live preview, syntax highlighting, diagrams, math equations, multi-language support, and powerful navigation features.

Install for Chrome

Get for Edge Watch Demo

Also works on Brave, Opera & Vivaldi • What's New

Free to use • No signup • Privacy-focused

atlas-docs/architecture.md

MarkView browser extension rendering a markdown document with a folder browser, a Mermaid sequence diagram and the document outline - works on Chrome, Edge, Brave, Opera

Why MarkView?

The Best Markdown Viewer for Everyone

Perfect for developers, writers, students, and anyone who works with markdown

Instant Rendering

Open any .md file and see it beautifully formatted instantly. No configuration needed, no separate apps to install. MarkView works right in your browser where you already spend your time.

Privacy-First Design

Your markdown files never leave your computer. All rendering happens locally in your browser - no servers, no tracking, no data collection. Your documentation stays private and secure.

Works Everywhere

From local README files to GitHub raw URLs, from GitLab to Bitbucket - MarkView renders markdown from any source. Perfect for reviewing documentation, reading technical specs, or browsing open-source projects.

Feature-Rich & Free to Use

Syntax highlighting for 180+ languages, Mermaid diagrams, KaTeX math equations, auto-refresh, table of contents, and more. Get started instantly with powerful features at no cost.

Features

Everything You Need

Powerful features for developers, writers, and researchers

Syntax Highlighting

180+ programming languages with beautiful GitHub-inspired color themes

Mermaid Diagrams

Flowcharts, sequence diagrams, and Gantt charts rendered beautifully

Math Equations

LaTeX math rendering with KaTeX for perfect formulas and equations

Smart TOC

Auto-generated navigation with scroll spy and smooth scrolling

File Browser

Navigate local markdown files with search and filter capabilities

Image Viewer

Full-screen lightbox with gallery navigation and lazy loading

Auto-Refresh

Live preview that updates automatically as you edit your files

Multi-Language

15 languages supported with auto-detection or manual selection

Highly Customizable

Dark mode, 9 fonts, adjustable sizes, line heights, and layout preferences

Showcase

See It In Action

Beautiful rendering for all your markdown content

Markdown viewer dark theme rendering a release review with lists, a flowchart and the document outline

Dark mode for the whole viewer: document, diagrams, sidebar and outline

Markdown viewer light theme rendering a release review with lists, a flowchart and bold highlights

Clean light theme with high contrast for daylight reading

Mermaid state diagram of an order lifecycle rendered in MarkView

Flowcharts, sequence and state diagrams from plain text

$LaTeX math equations rendered with KaTeX in MarkView, next to highlighted TypeScript code$

LaTeX equations rendered with KaTeX, inline and as display blocks

Quick Start

Get Started in Seconds

Install Extension

Add MarkView from your browser's official store

Chrome Web Store

Edge Add-ons

Enable File Access

Grant permission for local markdown files (optional)

Chrome: chrome://extensions → Details → Allow access to file URLs Edge: edge://extensions → Details → Allow access to file URLs

Open Markdown

Open any .md file and enjoy beautiful formatting

Ctrl + Shift + D Toggle theme

Ctrl + Shift + L Toggle TOC

Ctrl + Shift + B Toggle Browser

Ready to Transform Your Markdown?

Join thousands of users who love reading markdown with MarkView

Install for Chrome

Install for Edge

Free to use • No signup • Privacy-focused

MarkView - Modern Markdown Viewer for Chrome, Edge & Chromium Browsers

See MarkView in Action

Video Chapters

Works on All Major Browsers

Google Chrome

Microsoft Edge

Brave

Opera

Vivaldi

Other Chromium