Plain Markdown is a browser extension designed to convert any webpage into clean Markdown format with a single click. The tool operates without requiring login credentials, server connections, or tracking, ensuring privacy and ease of use. Its main purpose is to provide high-fidelity capture of web content into portable, readable Markdown files.

The extension features a live editor that allows users to make edits directly within the browser. It includes a side panel specifically designed for longer editing sessions, enhancing usability for extensive content manipulation. Auto-save functionality ensures that changes are saved per page and restored when reopened, preventing data loss. Users can utilize find and replace commands (Cmd/Ctrl+F) to efficiently modify text, and they have options to either copy the Markdown output to clipboard or download it as a file.

The product works by capturing webpage content and transforming it into Markdown format through a streamlined process accessible via browser extension or API. This approach eliminates the need for complex setups or external dependencies, focusing on simplicity and direct functionality.

Benefits include feeding web articles to AI models like ChatGPT and Claude with reduced noise and fewer tokens, improving efficiency in AI workflows. Use cases involve clipping content into note-taking applications such as Obsidian and Notion, saving documentation as portable Markdown files, and copying formatted content for platforms like GitHub issues, READMEs, and wikis.

Target users include individuals working with AI prompts, LLM workflows, and note-taking apps who need clean Markdown conversion. The tool integrates with browsers as an extension and offers an API for broader application support, catering to developers and content managers seeking efficient web content handling.