You forget most of what you read and watch. DevsArun Extensions turns any article, doc or YouTube video into summaries, smart notes, flashcards and quizzes — right in your browser's side panel.
Works everywhere you learn
Six powerful tools, free from day one. Bring your own free API key and start learning.
Get the gist in seconds, or a full structured study guide — overview, key points, how it works, implications.
AI-written study notes with bold key terms and a "Remember" section — plus your own quick notes.
Auto-generated decks from any page. Flip, study, save — every card joins your review schedule.
Fresh multiple-choice questions written from what you just read, graded instantly with explanations.
Key terms and jargon explained in plain English with examples, saved to your personal word bank.
Bookmark pages and text selections straight from the right-click menu into one searchable library.
Free plan includes 10 AI actions per day and 30 saved items per collection.
An article, documentation or a YouTube video — DevsArun Extensions reads the page (and even the video transcript).
Summarize, generate notes, build a flashcard deck or quiz yourself — one click in the side panel.
Spaced repetition resurfaces each card right before you'd forget it. A few minutes a day is enough.
Upgrade once and unlock the full learning engine — from a voice-enabled tutor to spaced repetition that never lets you forget.
Start free. Upgrade when you're ready to learn on another level.
| Feature | Free | Pro |
|---|---|---|
| Summary, Notes, Flashcards, Quiz, Vocabulary, Bookmarks | ✓ Included | ✓ Included |
| AI actions per day | 10 | Unlimited |
| Saved items per collection | 30 | Unlimited |
| AI Tutor (chat, voice, image explain) | — | ✓ |
| Mindmaps & Knowledge Graph | — | ✓ |
| Spaced Repetition & Revision Mode | — | ✓ |
| Practice Tests & Learning Progress | — | ✓ |
| PDF Export of your study packs | — | ✓ |
"I watch a lecture on YouTube, hit Quiz, and instantly know what I missed. My exam prep time literally halved."
"The spaced repetition is the killer feature. Cards from articles I read weeks ago keep coming back at the perfect moment."
"Bring-your-own-key means it costs me almost nothing to run, and my notes never leave my laptop. Exactly how it should be."
You bring your own free AI key. We never charge for your usage.
No. DevsArun Extensions works with your own free API key from Groq or Google Gemini (both have generous free tiers). Grab a key in about two minutes, paste it once in Settings, and you're set.
Everything — notes, decks, bookmarks, progress and your API key — lives in local extension storage on your device. Page content is sent only to the AI provider you chose, and nowhere else.
Yes. DevsArun Extensions reads the video's public transcript/captions when available, so summaries, flashcards and quizzes come from what was actually said — not just the description.
After checkout you get a license key instantly. Paste it in Settings → Activate, and Pro unlocks on that device. It even keeps working for a few days offline.
Google Chrome (version 116+) and Chromium-based browsers that support Manifest V3 side panels, like Edge and Brave.
Yes — Pro includes one-click PDF study packs (notes, decks, vocabulary), and everyone can export a full JSON backup of their data anytime.
Add DevsArun Extensions to Chrome and turn today's reading into knowledge that sticks — free.