
Plain Markdown is a browser extension that acts as a dedicated webpage to markdown converter, transforming any webpage into clean, structured Markdown with a single click. It targets researchers, note-takers, and AI users who need to extract web content without clutter. The core value lies in its simplicity and speed: no account creation, no login, and no unnecessary steps. The extension works on dynamic sites like Reddit and The Verge, preserving tables and code blocks. It runs entirely in your browser, providing a side panel for quick access and editing. This tool is built for those who value clean, structured text for notes, AI prompts, and knowledge management workflows.
The primary pain point Plain Markdown solves is the tedious process of manually cleaning web content for reuse. Copying and pasting from webpages often brings unwanted formatting, ads, and navigation elements, which requires significant manual cleanup. For users who feed web content into large language models (LLMs), messy text can degrade prompt quality and waste tokens. Plain Markdown eliminates this by extracting the core article or page content and converting it to clean Markdown, preserving tables, code, and source information. This matters because it saves time, improves AI output consistency, and allows users to efficiently capture and structure information from any webpage.
The first major feature group is Capture, which includes one-click conversion from any browser tab. Users can capture content from multiple tabs simultaneously, enabling efficient research sessions. The extension handles dynamic sites that load content asynchronously, as well as static pages. Tables and code blocks are preserved with correct formatting, ensuring no loss of structure. An inline Markdown editor allows users to tweak the output before saving or sending. Additionally, source information like the URL and page title is automatically included for citation purposes. All capture processing happens locally in the browser, ensuring privacy and speed.
The second feature group is AI actions, which provide intelligent processing of captured content. Users can run curated everyday prompts for summarization, rewriting, extraction, or making checklists. They can also build their own custom actions using any AI model. The Free and Pro tiers use Google's Gemini 2.5 Flash model, while the BYOK Lifetime plan allows users to bring their own OpenRouter key, giving access to over 200 models from providers like Anthropic, OpenAI, and Google. AI actions send the relevant page content to Plain Markdown's servers for processing (or directly to the user's chosen provider with BYOK), and results appear in the side panel. Each action run counts toward the monthly limit: 30 for Free, 3000 for Pro, and unlimited for BYOK.
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The third feature group is Destinations, allowing users to send converted Markdown directly to their favorite tools. Supported destinations include Obsidian, Readwise Reader, and Notion, where content appears fully formatted. Users can also copy to clipboard or download the Markdown as a .md file. This integration streamlines workflows for personal knowledge management, enabling seamless transfer of web content into note-taking or writing environments. The extension also features light, dark, and system theme options to match user preferences. It currently supports Chrome, Brave, and other Chromium-based browsers, with Firefox support planned.
Plain Markdown operates through a simple workflow. After installing the extension from the Chrome Web Store, no account is needed to start using it. When viewing any webpage, clicking the Plain Markdown icon opens a side panel displaying the page's clean Markdown. Users can edit the Markdown directly in the inline editor, run AI actions to transform the content, or send it to a destination. All interactions occur within the side panel, so users never leave the current page. The free tier includes 30 AI actions per month, the Pro tier increases that to 3000 per month with priority email support, and the BYOK Lifetime plan offers unlimited AI actions with a one-time payment of $19.
Concrete use cases include a researcher capturing a long Verge article for literature review, then using the "Summarize" AI action to extract key points and sending the result to Obsidian for note-taking. A Reddit user can distill a lengthy thread into a checklist using the "Make a checklist" AI action, then copy it to clipboard for sharing. A developer can grab code snippets from a documentation page with preserved syntax and send them to Notion for project reference. A writer collecting sources for an article can capture multiple pages, quote them in Markdown, and cite the original URLs. An AI enthusiast can prepare clean web content as context for an LLM prompt, ensuring optimal performance.
Plain Markdown is designed for Chrome, Brave, and other Chromium browser users who regularly need to extract clean text from webpages. Its target audience includes researchers, students, technical writers, developers, and AI workflow builders. Pricing is straightforward: a Free tier with 30 AI actions per month, a Pro tier at $29/year for 3000 actions and priority support, and a BYOK Lifetime tier at $19 one-time for unlimited actions with your own model. The extension runs locally for conversion and optionally uses server-side AI processing. In summary, Plain Markdown provides the fastest, cleanest way to turn any webpage into usable Markdown for notes, AI prompts, and knowledge management, making it essential for anyone who consumes web content as structured data.
Researchers, students, technical writers, developers, and AI enthusiasts who need to extract clean, structured Markdown from webpages for personal knowledge management, note-taking, and LLM workflows. Specifically designed for Chrome, Brave, and other Chromium browser users who value speed and simplicity—no accounts, no logins, just one-click conversion and optional AI processing. Also ideal for users of Obsidian, Readwise Reader, and Notion who want to seamlessly integrate web content into their existing note-taking or writing environments. The tool is valuable for anyone who regularly consumes web content and needs to repurpose it without manual formatting.