LangKey vs asbplayer: An Honest Comparison
asbplayer has earned its reputation among Anki users. It mines sentences out of video into cards that carry audio and a screenshot, it costs nothing, and it is open source. What it asks for in return is setup: you bring the subtitle files, you wire up AnkiConnect, and you correct the sync yourself. This page compares it honestly with LangKey, including the situations where asbplayer is plainly the better tool.
| Feature | LangKey | asbplayer |
|---|---|---|
| Price | Free core, open source | Free, open source |
| Local video files (mkv, mp4) | ||
| Reads subtitles straight from YouTube / Bilibili | Usually needs a separate subtitle file | |
| Needs Anki + AnkiConnect to save words | Yes, for card creation | |
| Built-in SRS review | ||
| Media captured per card | Word plus context sentence | Audio + screenshot + sentence |
| Dictation / shadowing / AI conversation | ||
| Read any web article | ||
| Setup before your first review | Install, then just watch | Source subtitles, connect AnkiConnect, tune sync |
Where asbplayer Still Wins
- Local video files are its home ground — if your material is a folder of downloaded episodes, nothing else handles them this well.
- Card quality is excellent: an audio clip, a screenshot and the surrounding sentence are captured together, which makes review far more memorable.
- Free with no paid tier and open source, so no feature is metered or hidden behind a paywall.
- A long-standing following among Japanese and anime learners means community guides and subtitle sources are easy to find.
Where LangKey Wins
- Nothing to configure — install it, open YouTube, Bilibili, TED or Netflix, and start. No AnkiConnect to wire up and no subtitle file to hunt down.
- Spaced repetition is built in, so saving a word and reviewing it happen in the same place rather than across two applications.
- Seven practice modes — dictation, shadowing, AI conversation, cloze and more — go well beyond turning sentences into cards.
- Free Anki import and export in both directions, so an existing collection can move in and yours can move out at any time.
The Verdict
This one is decided by where your material lives. If most of what you watch sits on disk and Anki is already central to your routine, asbplayer is the sharper tool — richer cards, unmatched local file support, and a community that has been refining the workflow for years. If you watch on streaming sites and would rather start in five minutes than configure three pieces of software, LangKey removes the setup entirely and adds practice that mining alone cannot give you. Both are free and open source, so trying each costs an afternoon rather than money.
Frequently Asked Questions
Is LangKey a replacement for asbplayer?
It depends on your material. For streaming video — YouTube, Bilibili, TED and Netflix — yes, and it adds practice modes asbplayer does not offer. For local files already on your disk, no: asbplayer stays the better tool for that case.
Can LangKey open local video files like asbplayer?
No. LangKey works inside the browser on streaming sites and web pages. If your routine revolves around downloaded video plus separate subtitle files, staying with asbplayer makes more sense.
Do I still need Anki if I use LangKey?
No. LangKey ships built-in SRS review, so saved words return on schedule without leaving the extension. If you do use Anki, import and export work in both directions and cost nothing.
Which makes better Anki cards, asbplayer or LangKey?
asbplayer, if you measure richness — each card can carry an audio clip and a screenshot alongside the sentence. LangKey optimises for getting words and sentences into review with as little friction as possible, and exports clean text you can enrich yourself later.
Are asbplayer and LangKey both free?
Yes. Both are open source and neither charges for core functionality. You can install both and decide later — nothing is locked behind a paywall on either side.