Cpdown – Copy any webpage/YouTube subtitle as clean Markdown(LLM-ready)

In plain words

Cpdown is a Chrome extension that extracts webpage content or YouTube subtitles and converts them to clean Markdown format with a single click or keyboard shortcut. It removes ads, sidebars, and unnecessary elements to focus on main content, then displays a token count for use with large language models. The tool is designed for users who regularly copy web information into note-taking apps like Obsidian or need formatted context for AI prompts.

written from the facts on this page · September 2026

From the sources

📥 cpdown - Copy to clipboard any webpage content/youtube subtitle as clean markdown with one click or shortcut - ysm-dev/cpdown

cpdown is a browser extension that allows you to copy the content of any webpage as clean, formatted markdown. If you're on YouTube, you can also copy the subtitle as markdown. Go to chrome://extensions/?options=knnaflplggjdedobhbidojmmnocfbopf or click the "Options" link in the extension's details page to configure cpdown after installation. bun i Build the extension: bun run build Load the unpacked extension: Open Chrome/Edge and navigate to chrome://extensions Enable "Developer mode" Click "Load unpacked" and select the .output/chrome-mv3 directory Usage Navigate to any webpage you want to copy Click the cpdown icon in your browser toolbar, or use the keyboard shortcut The page content…from github.com

In the maker’s words, at launch

TL;DR: I built a Chrome extension that copies webpage content or YouTube subtitles as clean, clutter-free Markdown with one click (or a shortcut). It even shows the token count, making it super handy for LLM prompts! Hi, HN! I often copy information from the web into my notes (Obsidian) or to feed context to LLMs for…

• 
  Copy as Markdown2025 · copyasmarkdown.com · ▲302

  Convert text to markdown for LLMs like ChatGPT

• 
  HTML-to-Markdown – convert entire websites to Markdown with Golang/CLI2024 · github.com · ▲360

  Hey HN! I originally built “html-to-markdown” back in 2018 (while still in high school) to handle complex HTML conversions where other libraries struggled. Now, I’ve released v2 — a complete rewrite designed to handle even more edge cases. It supports entire websites with a high accuracy. Example use: I’ve used it in my RSS reader to strip HTML down to clean Markdown, similar to the "Reader Mode" in your Browser. It can be used as a Golang package or as an CLI. Give it a try & tell me what edge cases you encounter!

• 
  I made a tool to clean and convert any webpage to Markdown2024 · markdowndown.vercel.app · ▲441

  My partner usually writes substack posts which I then mirror to our website’s blog section. To automate this, I made a simple tool to scrape the post and clean it so that I can drop it to our blog easily. This might be useful to others as well. Oh and ofcourse you can instruct GPT to make any final edits :D

• 
  DownMark2025 · wanyi.dev · ▲184

  Turn web content into clean Markdown with one click

• 
  Convert HTML DOM to semantic markdown for use in LLMs2024 · github.com · ▲146

  DOM to Semantic-Markdown for use with LLMs. Contribute to romansky/dom-to-semantic-markdown development by creating an account on GitHub.

• 
  Markdown page – Create a web page with just markdown2018 · github.com · ▲169

  📝 create a webpage with just markdown. Contribute to oscarmorrison/md-page development by creating an account on GitHub.

• 
  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 19d ago · spira.ai

• 
  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 19d ago · rill.love

• 
  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 20d ago · tej.as

• 
  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 22d ago · stillwet.art

• 
  Beam.win▲378

  Run AI agents on one Mac and use its windows on another

  AI · 5d ago · beam.win

• 
  FastRouter.ai▲364

  Route requests to the right LLM for cost, latency & quality

  AI · 23d ago · fastrouter.ai

• IM
  I'm an airline pilot – I built interactive graphs/globes of my flights▲1,539

  Hey HN! Pilots everywhere are required to keep a logbook of all their flying hours, aircraft, airports, and so on. Since I track everything digitally (some people still just use paper logbooks!), I put together some data visualizations and a few 3D globes to show my flying history. This globe is probably my favourite so far: https://jameshard.ing/pilot/globes/all If you’ve got ideas for other graphs or ways to show this kind of data, I’d love to hear them!

  Life & fun · 2025 · jameshard.ing

• 
  Chronicle: Cursor for Slides▲1,212

  Stunning presentations with AI. No design skills required.

  AI · 2025 · chroniclehq.com

• 
  Bubble for native mobile apps (beta)▲1,026

  Build native mobile apps for iOS and Android without code.

  Dev tools · 2025 · bble.io

• 
  Twenty▲989

  Build your Enterprise CRM with an AI-friendly SDK

  Dev tools · 2025 · twenty.com

• 
  Pally - AI Relationship Management▲949

  All your connections, across all your socials.

  AI · 2025 · pally.com

• 
  Workout.cool – Open-source fitness coaching platform▲827

  I was the main contributor to workout.lol, an open-source fitness app to easily build a workout routine. The project had traction (1.4k GitHub stars, 95 forks, ~20K visits/month), but was eventually sold due to video licensing hurdles. The new owner stopped maintaining it, and the repo went abandoned. Over the next 9 months, I sent 15 emails to try to save it : no replies. Feature requests & issues were ignored. The community was left with a "broken" tool let's say. I couldn't just let it die So I built the new version from scratch with the same open-source spirit, but a better…

  Dev tools · 2025 · github.com