# SlideSieve

> SlideSieve is a Chrome extension that automatically captures presentation slides from online course videos on DeepLearning.AI, Coursera, Udemy, and YouTube, and exports them as clean, organized PDFs. All processing happens locally in the user's browser — no video data is ever uploaded to any server.

## What is SlideSieve?

SlideSieve watches your video as you watch it and automatically detects when the slide on screen changes. It captures each unique slide frame, filters out instructor talking-head segments and near-duplicate frames, and stores them organized by course and lesson. When you're done, you can export all captured slides as a multi-page PDF with a single click.

## Supported Platforms

- **DeepLearning.AI** — Specially optimized for the learn.deeplearning.ai platform
- **Coursera** — Detects and captures slides from all Coursera video lectures
- **Udemy** — Works on all Udemy course video players
- **YouTube** — Captures slides from any YouTube educational video or lecture

## Key Features

- **Auto Slide Detection**: Structural image analysis detects slide changes without relying on the video's metadata. Accurately identifies presentation frames vs. talking-head segments.
- **Instructor Webcam Filter**: Automatically skips frames where the instructor is on camera. Only genuine slide content is captured.
- **Smart Deduplication**: Removes near-identical frames so you never get 50 copies of the same static slide. Progressive slide builds (text appearing line by line) are still captured reliably.
- **Manual Snap**: Capture any specific frame with a single click — perfect for diagrams or code blocks.
- **PDF Export**: Compile all captured slides into a clean, multi-page PDF. Each slide preserves its original aspect ratio.
- **Course-Scoped Storage**: Slides are organized by course and lesson, stored locally in IndexedDB.
- **100% Private**: All processing is done locally in your browser. No personal data or video content is transmitted to external servers.

## Pricing

- **Free Plan**: $0 forever. Auto slide detection, up to 150 slide captures in total. No credit card required.
- **Pro Lifetime**: $16.99 one-time payment. Unlimited slides per lesson, unlimited PDF exports, all future Pro features. No subscription.

## How to Use SlideSieve

1. Install SlideSieve from the Chrome Web Store
2. Navigate to a video course on DeepLearning.AI, Coursera, Udemy, or YouTube
3. Click "Start Auto Capture" on the floating toolbar below the video player
4. Play the video — slides are captured automatically
5. Use the "Snap" button anytime to manually capture a specific frame
6. Click "Export PDF" to download all captured slides as a clean PDF

## Official Links

- Website: https://slidecapture.com
- Chrome Web Store: https://chromewebstore.google.com/detail/lbiholhfnfedgecgkfclmhnphapaopep
- Support: https://slidecapture.com/support
- Privacy Policy: https://slidecapture.com/privacy
- Pricing: https://slidecapture.com/#pricing

## Frequently Asked Questions

**Does SlideSieve work on Coursera?**
Yes. SlideSieve automatically detects and captures slides from Coursera video lectures. It organizes captured slides by course name and lesson, and exports them as a PDF.

**Does SlideSieve work on Udemy?**
Yes. SlideSieve supports Udemy's video player and captures slide frames automatically while filtering out instructor webcam overlays.

**Does SlideSieve work on YouTube?**
Yes. SlideSieve works on any YouTube video and can capture slides from educational YouTube lectures automatically.

**Does SlideSieve work on DeepLearning.AI?**
Yes. SlideSieve is specially optimized for the learn.deeplearning.ai platform. Note that DeepLearning.AI does not provide official slide downloads for their Short Courses — SlideSieve captures these slides automatically while you watch, so you never need to take manual screenshots.

**Is SlideSieve free?**
Yes, SlideSieve has a generous free plan with no credit card required. The free plan allows auto slide detection and up to 150 slide captures in total. Pro (one-time $16.99) unlocks unlimited slides and unlimited PDF exports.

**Is my data private with SlideSieve?**
Yes. All slide capture processing happens entirely within your local browser. No video content, slide images, or personal data are ever sent to SlideSieve's servers.

**How accurate is SlideSieve's slide detection?**
SlideSieve uses structural image analysis — not simple screenshot timers — to detect genuine slide frames. It achieves 95%+ accuracy on typical educational course videos and can be supplemented with manual snap at any time.

## Version History

- v1.0.4 (July 2026): Fixed fast slide transition capture, improved fade-in deduplication, added license re-validation
- v1.0.3 (June 2026): Persistent capture interval settings
- v1.0.2 (June 2026): Fixed DeepLearning.AI compatibility, improved logo detection, shadow DOM support
- v1.0.1 (June 2026): Course/lesson PDF naming, aspect ratio preservation, IndexedDB persistence
- v1.0.0 (June 2026): Initial release