✦ Browser Extension · No Sign-up Required

Convert Any Webpage to Markdown
or Clean HTML — in One Click

HTML to Markdown Webpage Converter Markdown Viewer JSON Reader AI Chats Capture

A browser sidebar extension with comfortable reading.
Extract articles, capture AI chats, view Markdown and JSON.

Add to Your Browser
Works on: News Articles Documentation Sites Data Tables & Lists KaTeX & Mermaid Local .md & .json Files YouTube Transcripts AI Chats Capture & Selection
Features

One Sidebar. Powerful Tools for Markdown, JSON and AI.

Everything a researcher, developer, or note-taker needs — one click, no tab switching, no copy-pasting.

Extract any article
Capture AI chats
Math, diagrams & code
YouTube transcripts
JSON reader & HTML preview
1

Convert Any Webpage to Clean, Readable Markdown

Click the extension on any article, Wikipedia page, or documentation site. The sidebar strips ads, popups, and navigation clutter — converting the page to structured Markdown in under a second. Copy to clipboard or save as a .md file instantly.

  • Strips ads, navigation, and clutter automatically
  • Headings, tables, links and code blocks preserved
  • Copy to clipboard or save as .md file
  • Works on articles, docs, Wikipedia and blogs
Online Markdown Viewer converting a Wikipedia article to clean Markdown — dual panel light and dark mode
Click to expand
2

Capture AI Conversations — Select Only What You Need

Open any AI chat and the extension reads the full conversation into a structured document with a table of contents. Check only the topics you want — then export, copy, or print just that selection. Works with ChatGPT, Claude, Copilot, Gemini and Grok.

  • Select specific topics from the table of contents
  • Export the full conversation or your selection only
  • Save AI chat as .md or print selection to PDF
  • Supports ChatGPT, Claude, Copilot, Gemini and Grok
Online Markdown Viewer capturing ChatGPT and Copilot AI conversations — table of contents with checkboxes, selective export and print to PDF
Click to expand
3

Math, Diagrams and Code — Rendered Beautifully

Open any page with math formulas, Mermaid diagrams, or code snippets — the extension renders them all. KaTeX handles inline and display math. Mermaid renders flowcharts and sequence diagrams. Syntax highlighting covers 37 languages. Comfortable light and dark reading mode throughout.

  • KaTeX inline and display math rendering
  • Mermaid diagrams — flowcharts, sequences and more
  • Syntax highlighting in 37 languages
  • Light and dark mode for comfortable reading
Online Markdown Viewer rendering KaTeX math, Mermaid diagrams and syntax highlighted code — light and dark mode
Click to expand
4

Capture YouTube Transcripts — Find Any Spoken Word

Open the YouTube transcript panel and the extension captures every timestamped line into clean, searchable Markdown. Use Ctrl+F to find any word instantly — the live match counter jumps you through every hit. Save the full transcript as a .md file or copy to your notes.

  • Captures full timestamped transcript lines
  • Ctrl+F search with live match counter
  • Navigate matches with Next / Previous or keyboard
  • Save as .md or copy to clipboard
Online Markdown Viewer capturing a YouTube video transcript with timestamps and Ctrl+F keyword search with match counter
Click to expand
5

HTML Preview, JSON Reader and Local .md Files

Switch to HTML view for a clean, ad-free reading experience — images, styled tables, and formatted text without clutter. Open local .md files directly in the sidebar. Drop in a .json file for a formatted, readable code preview. Light and dark mode for comfortable reading throughout.

  • Clean HTML reading view — no ads, no clutter
  • Open and read local .md files in the sidebar
  • JSON reader — formatted, readable code preview
  • Light and dark mode for comfortable reading
Online Markdown Viewer HTML preview and JSON reader — open local .md and .json files with light and dark mode
Click to expand
Google Chrome Microsoft Edge Mozilla Firefox

Available on Chrome, Edge and Firefox — free, no account required

100% Private

All conversion happens locally in your browser. Zero network calls. Zero data collection. Ever.

Works Offline

No server, no API, no internet required. The converter runs entirely inside your browser.

No Account Needed

Install and start immediately. No sign-up, no login, no permissions beyond the active tab.

Completely Free

Full feature set at no cost. Install directly from your browser's extension store.

Perfect For

🤖

AI Power Users

Save and organize ChatGPT, Claude, or Copilot conversations as Markdown. Select only the answers you need — skip the rest.

📚

Researchers & Students

Save articles and lecture transcripts to Obsidian or Notion without re-typing a word.

💻

Developers & Tech Writers

Convert documentation pages to Markdown. Extract code blocks, tables, and structured data instantly.

✍️

Writers & Note-takers

Clip any webpage without ads or clutter. Get clean, readable content ready for your workflow.

Stop Copy-Pasting. Start Converting.

Any webpage, any AI chat, any local file — clean Markdown in your browser sidebar.

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