ASBplayer is a free, open-source browser extension that enhances streaming videos for language learning. It allows you to add text-selectable subtitles to almost any video source, create high-quality Anki flashcards with audio and screenshots, and use specialized playback modes to optimize immersion efficiency.
Website: Get ASBplayer on the Chrome Store
Free and open source
Works with most streaming platforms
Creates multimedia Anki cards
Text-selectable subtitles
Special playback modes (condensed
auto-pause)
Integrates with Yomitan dictionary
Supports custom subtitle files
ASBplayer transforms any subtitled video into a powerful language learning tool. Originally developed for Japanese learners using AJATT methodology, it has become essential for making native content more accessible and comprehensible, for sentence mining, and for creating quality flashcards from your immersion content.
Suitable for all levels of learners who use sentence mining and Anki for vocabulary acquisition. Best suited for those already familiar with immersion learning principles and comfortable with browser extensions and Anki setup.
Install the Chrome extension from the Chrome Web Store. Install Anki and the AnkiConnect add-on. Set up a dictionary tool like Yomitan. Configure ASBplayer settings to connect with your Anki deck and note type through AnkiConnect.
Navigate to a video with subtitles. Click the ASBplayer icon to activate. Use the subtitle panel to browse and select text. Click words for dictionary lookups via Yomitan. Create Anki cards by selecting subtitle text and using the card creation interface. Use playback controls for condensed mode or auto-pause features.
Some users report occasional subtitle loading failures on YouTube and other platforms. Audio sync issues may occur. DRM-protected content (like Netflix) has limited audio recording capabilities. Setup can be complex for beginners.