🎬 AI-Powered Video Notes Extension

Watch Video.
Wisely.

Wisdio AI lives in your browser sidebar — capture subtitles from any video, take timestamped Markdown notes, and let AI help you extract the essence. Stop rewinding. Start learning.

100% Free to Use
BYO Key Use Your Own API
Privacy Data Stays Local
"
I was drowning in an ocean of video — and couldn't find the single sip of water I needed.

As someone who struggles with mental stamina, I constantly found myself overwhelmed by the sheer flood of streaming video. A simple question — "How do I set up skills in Claude Code?" or "At what point in this calculus course does the professor cover the Mean Value Theorem?" — would force me to sit through 40-minute tutorials or rewatch entire lecture series from start to finish.

Podcasts were no different. To find the one moment where a creator shared their insight on a business model, I'd have to listen to the entire episode. Every time, the same exhausting pattern.

The root cause? Search results can never precisely match the question inside a video. Cultural barriers, commercial incentives, and algorithmic noise conspire to make searching within streaming media feel like finding a needle in the ocean. As the Chinese proverb goes — "Of three thousand streams, I only need one sip" — yet I was drowning before I could find it.

So I built Wisdio — a name born from Wise + Video. A browser extension that extracts the essence from any video, saves you hours of watching, and helps you find that one sip of clarity in the endless stream.

One Sidebar. Four Superpowers.

Everything you need to turn video watching into active learning

🎬

Universal Subtitle Capture

Subtitles aren't just part of the video — they're text material. Wisdio force-extracts raw subtitles from YouTube, Bilibili, and more, breaking through platform restrictions. Feed entire transcripts to AI for outlining, or drag them into your notes as quotes.

  • Cross-platform subtitle extraction (YouTube, Bilibili & more)
  • Click any subtitle line to jump to that timestamp
  • Full transcript export for offline use
  • Send subtitles to AI for summarization or translation
💬

AI Co-pilot

Chat with any video or webpage in natural language. Ask AI to summarize a 2-hour lecture, explain a concept, or generate a mind map — all with full page context.

  • Multi-provider: DeepSeek, OpenRouter, SiliconFlow & more
  • Visible thinking process (Chain-of-thought UI)
  • Near 100K character context window
📝

Timestamped Notes

Take Markdown notes while watching videos. Every note anchors to the current timestamp — click a note later to jump back to the exact frame. Your notes become a navigable video index.

  • Real-time Markdown editing & preview
  • Timestamp anchoring (click to jump)
  • Export as .md for Obsidian / Notion / Logseq
📱

Mobile Companion Mode

Learning doesn't stop at your desk. Wisdio's mobile-optimized UI adapts to single-hand use with bottom tabs, a floating widget, and smart keyboard detection.

  • Works on Kiwi Browser, Lemur & more
  • Floating widget for quick access
  • Auto-adapts to phone keyboard height

Built for How You Learn

Real scenarios where Wisdio transforms your workflow

01

🎓 Foreign Language Video Study

Watching a full-English YouTube lecture with no subtitles? Wisdio force-extracts the raw transcript, and AI helps you understand in real-time. Take notes in your language while the video plays — each note links back to the exact moment you wrote it.

02

📄 Long Article Distillation

Opened a 30,000-word industry report but don't have time to read it all? Capture the entire page as a "Context Pill" and ask AI: "What are the three core strategies mentioned?" Get the essence in seconds.

03

🚇 Commute-Mode Learning

On the subway with just your phone? Wisdio's floating widget hovers quietly in the corner. Tap to open a full bottom sheet — read, highlight, ask AI, take notes — all optimized for one-thumb operation.

Up and Running in 3 Steps

No subscriptions. No complicated setup. Just install and go.

1

Install Extension

Add Wisdio AI to Chrome from the Web Store. It takes 10 seconds.

2

Add Your API Key

Bring your own API key from DeepSeek, OpenRouter, or any compatible provider. You control the cost.

3

Open a Video & Start

Navigate to any video, open the sidebar, and start capturing subtitles, chatting with AI, and taking notes.

Your Keys. Your Data. Full Transparency.

Wisdio doesn't charge for AI usage — you use your own API key. We even show real-time token consumption and estimated cost in the panel, so you always know exactly what you're spending. No hidden fees, ever.

DeepSeek
OpenRouter
SiliconFlow
iFlow (心流)
Custom OpenAI-Compatible

Your Notes. Your Data. No Lock-in.

Export everything as clean Markdown files — compatible with Obsidian, Notion, Logseq, and any PKM tool

📦

One-Click ZIP Export

Export your entire knowledge base — timestamped video notes, AI chat summaries — as a clean .md bundle.

🔗

PKM-Ready Format

Pure Markdown output. Drag-and-drop into Obsidian, Notion, or Logseq. We're your knowledge outpost, not a data silo.

🔒

Local-First Storage

All notes and conversation history stay in your browser's local storage. Nothing goes to our servers.

FAQ

Common questions about Wisdio AI

Is Wisdio free to use?

Yes! Wisdio is completely free. You just provide your own API key from a supported AI provider. DeepSeek, for example, offers very affordable pricing.

Which video platforms are supported?

Subtitle capture works on YouTube, Bilibili, and other major video platforms. The AI chat and notes features work on any webpage.

Can I use it to study foreign language videos?

Absolutely! Wisdio extracts raw subtitles even when the platform doesn't show them. You can send the transcript to AI for translation, summarization, or explanation in your language.

Is my data safe?

Your notes and conversation history are stored locally in your browser. We don't send your data to our servers. AI requests go directly to your chosen provider using your own API key.

Does it work on mobile?

Yes! Wisdio has a dedicated mobile-optimized UI that works on Chromium-based mobile browsers like Kiwi Browser and Lemur. The floating widget design is built for single-hand operation.

Can I export my notes to Obsidian?

Yes. All notes export as pure Markdown files (.md), fully compatible with Obsidian, Notion, Logseq, and any other PKM tool.

Stop Rewinding. Start Learning.

Turn every video into structured knowledge with AI-powered subtitles, notes, and chat.

Install Wisdio AI — Free