Use Cases
markjason is built for specific workflows. Here's where it shines.
AI Coding Workflows
Using Claude Code, Cursor, Codex, or other AI coding assistants? markjason's live file sync and instant startup make it the perfect companion.
Learn more →AGENTS.md Editor
Edit AI agent instructions with instant preview, token counting, and visual hierarchy. The fastest way to tune your agents.
Learn more →More Everyday Uses
- Reading documentation — Double-click any README.md and have it rendered instantly
- Editing configs — JSON files with real-time validation and collapsible tree view
- Managing secrets — .env files with one-click copy for keys and values
- Reviewing agent output — Watch files update in real-time as AI writes
- Sharing specs — Copy rendered markdown as images for non-technical colleagues
- Prompt engineering — Token counting tells you exactly how long your prompts are
See How markjason Compares
Download markjason
Free. Native macOS. ~100MB RAM.