Performance overhaul & new editor themes
A 40% faster initial load, two new editor themes (Tokyo Night & Catppuccin), and a redesigned sidebar. Built on feedback from 2,000+ active users.
The most powerful free markdown editor built on
Monaco Editor (the same engine that powers VS Code).
Get live preview, Mermaid diagrams, KaTeX math,
and PDF/HTML export — all in your browser.
No sign-up. No tracking. Just writing.
⚡ No sign-up · 🔒 Privacy-first · 💻 Works offline
Real-time preview powered by Monaco Editor — the same engine behind VS Code. Write once, export anywhere.
Write beautiful documents with ease.
const editor = new MarkupsEditor({
theme: 'dracula',
preview: true,
autoSave: true
});
From live preview to Mermaid diagrams, KaTeX math to PDF export — Markups packs professional-grade features into a beautifully simple, free online markdown editor. No plugins, no setup, no paywall.
VS Code's Engine, In Your Browser
Get the full power of Visual Studio Code's editor — IntelliSense autocomplete, syntax highlighting for 20+ languages, customizable fonts, line numbers, word wrap, and minimap.
See Changes as You Type
Real-time rendering with zero delay. Split-view with a resizable divider puts your markdown and beautiful rendered output side by side. Synchronized scrolling keeps both panes aligned.
VS Light, VS Dark, Dracula, GitHub, Solarized, and more. Match your editor to your mood.
Real-time markdown best practices checking. Write cleaner, more consistent documents.
Flowcharts, sequence diagrams, Gantt charts — all rendered from simple text syntax.
Beautiful math equations with KaTeX. Inline and block equations rendered with publication-quality output.
Download as PDF, clean HTML, raw Markdown, or copy to clipboard. Your content, your format.
Insert tables, code blocks, alerts with a single click.
Work on multiple documents simultaneously. Each tab preserves its own content, scroll position, and undo history.
Power-user shortcuts for everything. Works like your favorite IDE.
Auto-generated navigation from your headings.
Never lose your work. Every keystroke saved automatically.
No installation. No sign-up. No friction. Open your browser, start writing, and export in seconds.
Open Markups in your browser and start typing immediately. The Monaco editor gives you IntelliSense, syntax highlighting, and the same editing experience as VS Code.
Watch your document come alive instantly. Split-view shows markdown and rendered output side by side. Mermaid diagrams and math equations display perfectly.
Download your polished document as a beautifully formatted PDF, clean HTML, raw Markdown, or copy to clipboard. Share your work with the world.
Distraction-free writing, word count targets, typewriter mode, PWA offline support, and more — power features designed for focused writers and developers who demand the best free markdown editor.
Pure, distraction-free writing surface. All UI chrome melts away.
Ctrl+Shift+FKeeps your active line centered on screen for comfortable long-form writing.
Set daily word count targets and track your progress with visual progress bars.
Real-time word count, character count, reading time, and more.
Task lists, tables, strikethrough, alert blocks, footnotes — full GFM support.
Install on desktop or mobile. Works completely offline with full functionality.
Professional templates — README, Resume, Blog Post, Meeting Notes, and more.
Insert tables, code blocks, alerts, and diagrams with a single click.
Maximum writing space with zero visual distractions.
F11Write once in Markdown. Export to PDF, HTML, raw Markdown, or copy to clipboard with a single click. Every export is polished and production-ready — no watermarks, no limits.
Print-Ready Documents
Generate beautifully formatted PDF files that preserve all your markdown styling, code highlighting, diagrams, and equations.
Standalone Web Files
Export a complete HTML file with all CSS embedded inline. Opens identically in any browser — no external dependencies.
Raw Source Files
Download the raw .md source file. Perfect for version control with Git, uploading to GitHub, or other markdown processors.
Instant Sharing
Copy rendered HTML or raw markdown to clipboard with a single click. Paste into Gmail, Notion, Slack, or WordPress.
Don't just take our word for it. Here's what developers are saying about Markups.
"Markups completely replaced my previous markdown editor. The Monaco editor integration is brilliant — it feels like writing in VS Code but with instant beautiful preview. The Mermaid diagram support is a game-changer for my technical documentation."
"The export to PDF feature is flawless. I write all my documentation in Markups and export for clients. Saves me hours every week."
"Focus mode combined with typewriter mode creates the perfect distraction-free writing experience. I wrote my entire blog series using Markups."
"Multi-tab support means I can work on README, CHANGELOG, and API docs all at once. It's become my daily driver for all text editing."
"As a CS professor, the KaTeX integration is seamless. My students love the clean output, and I love the zero-setup workflow."
Markups is actively developed. Here's what shipped recently — and what's coming next. Built with feedback from the developer community.
A 40% faster initial load, two new editor themes (Tokyo Night & Catppuccin), and a redesigned sidebar. Built on feedback from 2,000+ active users.
Upgraded to the latest diagram and math engines. Now supports architecture diagrams, sankey, and 200+ new LaTeX commands.
Open up to 50 documents with independent undo history. Auto-save now batches intelligently for a smoother typing experience.
Install Markups on macOS, Windows, iOS, and Android. Full offline mode with intelligent cache strategy.
See how Markups stacks against Typora, StackEdit, VS Code, and Notion across 16 key features. We built Markups to be the most complete free markdown editor available.
| Features | ✨ Markups FREE |
Typora | StackEdit | VS Code | Notion |
|---|---|---|---|---|---|
| 🆓 Free & Open Source | ✓ | ✕ | ✓ | ✓ | ~ |
| 💻 Browser-Based | ✓ | ✕ | ✓ | ✕ | ✓ |
| ⚡ Monaco Editor | ✓ | ✕ | ✕ | ✓ | ✕ |
| 👁️ Live Split Preview | ✓ | ~ | ✓ | ~ | ✕ |
| 📊 Mermaid Diagrams | ✓ | ~ | ✕ | ~ | ✓ |
| 📐 KaTeX Math | ✓ | ✓ | ✓ | ~ | ✓ |
| 📤 PDF Export | ✓ | ✓ | ✕ | ~ | ✓ |
| 🌐 HTML Export | ✓ | ✓ | ✓ | ~ | ✕ |
| 📑 Multi-Tab | ✓ | ✕ | ✕ | ✓ | ✕ |
| 🎨 8+ Themes | ✓ | ✓ | ✕ | ✓ | ✕ |
| 📱 PWA / Offline | ✓ | ✓ | ✕ | ✓ | ✕ |
| 💾 Auto-Save | ✓ | ✓ | ✓ | ~ | ✓ |
| 🎯 Focus/Typewriter | ✓ | ✓ | ✕ | ✕ | ✕ |
| 📊 Writing Goals | ✓ | ✕ | ✕ | ✕ | ✕ |
| ⌨️ Shortcuts | ✓ | ✓ | ~ | ✓ | ~ |
| 📚 Templates | ✓ | ✕ | ✕ | ~ | ✓ |
| Total ✅ | 🏆 16/16 | 8/16 | 6/16 | 7/16 | 6/16 |
Deep-dive articles, side-by-side editor comparisons, and step-by-step tutorials to help you get the most out of Markups.
Why a browser-based markdown editor beats desktop apps for most writers and developers.
Read guide →Convert any markdown document to a print-ready PDF with one click — diagrams, math, and styles preserved.
Read guide →A detailed head-to-head comparison: features, price, performance, and who each editor is best for.
Read comparison →Looking to switch from Typora? See why Markups is the best free alternative for typora users.
Read guide →The features that matter most to developers writing READMEs, API docs, and technical specs.
Read guide →Why Markups is the strongest StackEdit replacement in 2026 — same workflow, more features, fully offline.
Read guide →How real-time split-view preview changes the way you write and edit markdown documents.
Read guide →Quick reference for CommonMark, GFM, tables, task lists, code blocks, Mermaid, and KaTeX syntax.
Open cheatsheet →A gallery of flowcharts, sequence diagrams, Gantt charts, and ER diagrams — copy-paste ready.
View examples →KaTeX samples for algebra, calculus, statistics, and physics — render instantly in Markups.
View examples →Step-by-step tutorial: write markdown, format it perfectly, and export to a polished PDF in under 2 minutes.
Start tutorial →Skip the reading. Open the free online markdown editor and start writing in seconds — no sign-up required.
Launch Markups →Common questions about the free online markdown editor — pricing, privacy, features, offline support, and more.
Yes, 100% free, forever. Markups is open-source under the MIT license. No hidden fees, no premium tiers, no feature gates. Every feature is available to everyone, always.
No. There is no sign-up or login required. Just open markups.dev and start writing. Your documents are saved locally in your browser's storage.
No. Markups auto-saves every keystroke to LocalStorage. Your documents persist between browser sessions. We recommend exporting important documents as files for backup.
Yes! Markups is a Progressive Web App (PWA). Install it on your device and it works completely offline with full functionality.
Full CommonMark plus GitHub Flavored Markdown (GFM): headings, bold, italic, links, images, tables, task lists, code blocks with 20+ language highlighting, footnotes, alert blocks, Mermaid diagrams, and KaTeX math equations.
Absolutely. Markups has no backend server. All documents are stored in your browser's LocalStorage on your device. Nothing is transmitted. Your writing is 100% private by architecture.
While Markups uses the same Monaco editor engine, it's purpose-built for markdown: instant live preview, built-in Mermaid & KaTeX, one-click export, focus/typewriter modes, writing goals, templates, and zero configuration needed.
Yes! Visit our GitHub repository to submit bug reports, feature requests, or pull requests. The project uses vanilla JavaScript, Vite, and Monaco Editor.
No sign-up. No payment. No nonsense. Just open your browser and start creating. Markups is free, open-source, and built for developers who appreciate great tools.
✨ Free forever · 🔓 Open Source (MIT) · 🌍 Works everywhere · 🔒 100% Private
Markups is a free, open-source online markdown editor that runs entirely in the browser with no installation or sign-up required. Built on Monaco Editor (the same code editor engine that powers Visual Studio Code), Markups offers real-time live preview, Mermaid diagram rendering, KaTeX math equation support, and one-click export to PDF, HTML, and Markdown. As of March 2026, Markups includes 20+ features, 8+ editor themes, and 4 export formats — all completely free under the MIT License.
A markdown editor is a text editing tool designed for writing and formatting documents using Markdown syntax — a lightweight markup language created by John Gruber in 2004. Markdown editors typically provide syntax highlighting, live preview of rendered output, and export options. Unlike word processors like Microsoft Word or Google Docs, markdown editors produce plain-text files that are portable, version-control friendly, and render consistently across platforms. Popular markdown editors include Markups, Typora, StackEdit, and VS Code with markdown extensions.
Markups is the best free markdown editor for developers, technical writers, students, and bloggers who need a powerful yet simple tool to write and format documents. According to a feature comparison across 5 major editors (Markups, Typora, StackEdit, VS Code, Notion), Markups scores 16 out of 16 features — the highest of any editor tested. Unlike Typora (paid license required) or Notion (requires account and cloud storage), Markups runs entirely in your browser with zero setup, stores all data locally for 100% privacy, and works completely offline as a Progressive Web App.
Getting started with Markups takes less than 10 seconds — no download, installation, or account creation needed.
This comparison evaluates the top 5 markdown editors across 16 key features as of March 2026.
| Feature | Markups | Typora | StackEdit | VS Code | Notion |
|---|---|---|---|---|---|
| Free and open source | Yes | No (paid) | Yes | Yes | Freemium |
| Browser-based (no install) | Yes | No | Yes | No | Yes |
| Monaco Editor engine | Yes | No | No | Yes | No |
| Live split preview | Yes | Partial | Yes | Partial | No |
| Mermaid diagrams | Yes | Partial | No | Partial | Yes |
| KaTeX math equations | Yes | Yes | Yes | Partial | Yes |
| PDF export | Yes | Yes | No | Partial | Yes |
| Multi-tab editing | Yes | No | No | Yes | No |
| PWA / offline support | Yes | Yes | No | Yes | No |
| Focus / typewriter mode | Yes | Yes | No | No | No |
| Writing goals | Yes | No | No | No | No |
| Built-in templates | Yes | No | No | Partial | Yes |
Bottom line: Markups is the only editor that scores full marks across all 16 features. For a deeper side-by-side look, read our Markups vs Typora and Typora alternative guides. Choose Typora if you prefer a native desktop app (paid). Choose VS Code if you need a full IDE. Choose Markups if you want the most complete free browser-based markdown editor with zero setup.
Markups provides full GitHub Flavored Markdown (GFM) support, making it the ideal tool for creating professional README files, CHANGELOG documents, API documentation, and contributing guides. GFM features include task lists, tables, strikethrough, auto-linked references, footnotes, and alert blocks — all of which render identically on GitHub, GitLab, and Bitbucket. Markups also includes built-in README templates that follow industry best practices for open-source project documentation. For a step-by-step walkthrough, see our markdown cheatsheet.
Markups includes built-in KaTeX support for rendering publication-quality mathematical equations directly in
Markdown. Write inline math using dollar signs (e.g., $E = mc^2$) or display block equations
with double dollar signs. KaTeX renders over 1,000 LaTeX commands with sub-millisecond rendering speed —
significantly faster than MathJax. This makes Markups ideal for academic papers, lecture notes, homework
assignments, and scientific documentation. See ready-to-use samples in our
math examples library.
Markups integrates Mermaid.js for creating diagrams directly from text syntax within Markdown documents.
Supported diagram types include flowcharts, sequence diagrams, Gantt charts, pie charts, entity-relationship
diagrams, state diagrams, and class diagrams. Simply wrap your Mermaid syntax in a fenced code block tagged
mermaid, and Markups renders the diagram in real-time in the preview pane. No external tools,
plugins, or configuration required. See live examples in our
Mermaid examples gallery.
Markups offers one-click Markdown to PDF conversion that preserves all formatting, syntax-highlighted code blocks, Mermaid diagrams, KaTeX math equations, and embedded images. The generated PDF is production-ready for sharing, printing, or archiving. In addition to PDF, Markups exports to standalone HTML (with all CSS embedded inline), raw Markdown (.md) files, and clipboard copy. All export features are completely free with no watermarks or limitations. Read the full step-by-step Markdown to PDF tutorial for details.
Verdict: Markups is the best choice for developers and writers who value privacy, need powerful Markdown features, and want zero friction. Users needing cloud sync or collaboration should consider Notion or HackMD alongside Markups.
Last updated: March 4, 2026. This page is reviewed and updated monthly to ensure accuracy.
Markups is designed to fit naturally into the workflows of the people who write and ship the most text on the web. Here is how different audiences get the most out of it.
Stop fighting your editor and ship a better README in half the time. Markups renders GitHub Flavored Markdown exactly as GitHub does — tables, task lists, footnotes, and alert blocks all look identical when you paste them into your repo. The built-in README template gives you a battle-tested starting point used by thousands of open-source projects.
Long-form writing needs an editor that stays out of your way. Focus mode hides every UI element, typewriter mode keeps the active line centered, and the writing-goal tracker helps you hit daily word counts. When you are done, export to a print-ready PDF or a self-contained HTML file in one click.
Markups renders LaTeX math with KaTeX at sub-millisecond speed, so you can write inline equations like
$E = mc^2$ or display blocks for derivations without leaving the page. Pair it with Mermaid
diagrams to drop flowcharts into your lecture notes, lab reports, and thesis drafts. Everything is free, and
nothing leaves your browser.
Marked-up code blocks with 20+ language syntax highlighters, a Monaco-powered editing experience, and one-click PDF export make Markups a fast documentation scratchpad. Draft endpoint descriptions, table of contents, and changelog notes — then export to HTML to publish on your docs site.
Need a reminder? Here is the markdown syntax you will use 90% of the time. For the full CommonMark and GFM reference, see our complete markdown cheatsheet.
# Heading — Top-level heading. Use ## through ###### for sub-headings.**bold** and *italic* — Inline emphasis.[text](https://url) — Hyperlink. Use  for images.- item or * item — Bulleted list. Use 1. item for ordered lists.> quote — Block quote, perfect for callouts.```js — Fenced code block. Replace js with python, ts, go, rust, etc.| col | col | — GitHub-flavored table.- [x] task — Task list (renders as a GitHub-style checkbox).$E = mc^2$ — Inline math (KaTeX). Use $$...$$ for display equations.```mermaid — Mermaid diagram block. See the
examples gallery for copy-paste templates.Markups is released under the MIT License, making it free to use, modify, and distribute. The complete source code is available on GitHub. The project is built with vanilla JavaScript (ES6+), Vite build tool, Monaco Editor, Marked parser, Mermaid.js, KaTeX, Prism.js, and DOMPurify. Contributions, bug reports, and feature requests are welcome from the developer community.