.mdown file: how to open it on Windows

29 Windows apps register the .mdown extension. Install one of them to open the file with a double-click.

MarkText
A simple and elegant Markdown editor focused on speed and usability.

Open source 0.23.0 28.2K ↓ ★ 63K
Notepad3
Notepad like text editor based on the Scintilla source code.

Free 7.26.602.1 84.4K ↓ ★ 6.7K
Notion
A new tool that blends your everyday work apps into one. It's the all-in-one workspace for you and your team.

Proprietary 7.41.0 461.4K ↓
Typora
A markdown editor, markdown reader.

Proprietary 1.14.15 120.1K ↓
Kiro
An agentic IDE that helps you do your best work with features such as specs, steering, and hooks.

Proprietary 1.4.26 13K ↓
Windsurf
The most powerful AI IDE

Proprietary 2.3.15 12.3K ↓
Void
The open source AI code editor.

Open source 1.99.30044 ★ 28.7K
Antigravity IDE
Experience liftoffwith the next-generation IDE

Proprietary 2.5.5 1.2K ↓
Positron
A next-generation data science IDE

Proprietary 2026.10.2 ★ 4.3K
Aide
The open-source AI-native IDE

Open source 1.96.4.25031 ★ 2.2K
TheiaIDE
A modern and open IDE for cloud and desktop.

Open source 1.76.0 ★ 612
DatasetViewer
A modern, high-performance dataset viewer built with Tauri, React, and TypeScript. Designed to handle massive datasets from multiple sources with efficient streaming for large files (100GB+) and lightning-fast search capabilities.

Free 1.6.4 ★ 1.1K
Cursor
The AI Code Editor

Proprietary 3.20.14
Comate
Intelligent coding capabilities throughout the entire development process along with enhanced multimodal abilities. Install now to start a seamless and natural intelligent development experience.

Proprietary 3.11.5
Trae CN
An adaptive AI IDE that transforms how you work, collaborating with you to run faster.

Proprietary 3.4.9
Trae
An adaptive AI IDE that transforms how you work, collaborating with you to run faster.

Proprietary 3.6.4
MDViewer+ for Windows
Offline Markdown viewer and editor for Windows

Open source 2.0.1 ★ 5
Devin
Manage fleets of local and cloud agents from one surface. Plan, delegate, review, and ship without leaving your editor.

Proprietary 3.10.48
Cortex Code
Accelerate your data lifecycle with Cortex Code, a Snowflake-native AI coding agent. Simplify data engineering, ML, and agent-building with natural language.

Proprietary 1.21.8
CatPawAI
AI Programming Agent

Proprietary 2026.9.2
Lingma
Fully integrated with the AI coding assistant, enjoy efficient and intelligent programming with an out-of-the-box experience without installing any plugins.

Proprietary 1.106.3
Markdown Viewer
Quick and easy Markdown file viewer

Open source 1.0.8
Sublime Text 4 (Dev)
Sublime is a sophisticated cross-platform text editor for code, markup and prose.

Proprietary 4.0.0.421400
CodeBuddy
Tencent Cloud Code Assistant

Proprietary 1.106.1
Qoder
Agentic Coding Platform for Real Software

Proprietary 1.106.3
Qoder IDE
Agentic Coding Platform for Real Software

Proprietary 1.106.3
Haystack Editor
Navigate and refactor your code with ease

Proprietary 1.90.0
PearAI
The AI Code Editor for Your Next Project.

Proprietary 1.8.9
CodeBuddy CN
Tencent Cloud Code Assistant CodeBuddy, an AI-powered coding IDE.

Proprietary 1.106.1