LingKuma

Open-source tool for highlighting, translating, and reviewing words while reading.

Browser extensionfree

LingKuma is a free, open-source alternative to LingQ for learning a language through reading. It highlights known and unfamiliar words across webpages, EPUBs, PDFs, and YouTube subtitles, offers AI-assisted sentence translation and analysis, and syncs progress across browser and mobile via WebDAV or self-hosted Docker sync.

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Problem & pain-point mapping
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What it's a strong alternative to
Trust & credibility signals

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