Cleaner line breaks for manually added Japanese YouTube captions. Auto-generated captions are not supported.
Users
3
−2 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#315K
#251K among extensions
Version
1.1.0
updated 22 Sep 2026
Users
monthly, 5 months
Latest, 15 Oct 2026:3 usersMove the mouse over the chart for any month
Ratings count
monthly, 5 months
Latest, 15 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Better Japanese Captions
Better Japanese Captions reflows Japanese subtitle lines on YouTube so they break at more natural places—easier to read at a glance.
How it works:
• Runs only on youtube.com pages (desktop and mobile domains declared in the manifest).
• Uses Budoux-style segmentation bundled inside the extension—no caption text is sent to a developer-operated server.
• Includes an on-player toggle to restore YouTube’s original caption layout when you want to compare.
Privacy:
• No accounts, no analytics SDKs, no remote caption uploads by this extension.
• See the Privacy Policy linked from the listing for details.
YouTube の日本語字幕が、読みやすい位置で改行されるようにレイアウトを調整します。処理はすべてブラウザ内で行われます。
• 対象サイトはマニフェストで指定した YouTube(youtube.com/www/m のみ)。
• Budoux に相当するモデルを同梱しローカルで分割。開発者運用サーバーへの字幕送信はありません。
• プレーヤー横のトグルで、本来の字幕レイアウトに戻して比較できます。
• アカウント不要・アプリ内解析・字幕データの開発者側収集なし。