Markdown Studio – Markdown editor built for the AI workflow era

Summary: Markdown Studio is a free, privacy-focused editor tailored for drafting and formatting prompts, context, and content for large language models like ChatGPT and Claude. It features real-time token counting, live preview, auto-save version history, and smart copy optimized for AI chats, all running entirely in the browser without accounts or tracking.

What it does

It provides real-time token counting for multiple LLMs, live preview synced with the cursor, auto-saves versions every five minutes, and offers smart copy that removes formatting for AI input. It supports dark mode, multi-tab editing, and exports to PDF or HTML.

Who it's for

It is designed for users creating prompts, system instructions, context dumps, and documentation intended for consumption by large language models.

Why it matters

It solves the challenge of managing token limits, version control, and clean input formatting in AI workflows while ensuring data privacy by keeping all processing local to the browser.