YouTube 字幕向け Chrome 拡張

EnglishCC

YouTube の講義、レッスン、インタビュー、チュートリアルで英語を学ぶ人のための、見やすくカスタマイズ可能な字幕レイヤーです。

YouTube 優先 MVP に集中
ログイン不要 ローカル設定
読みやすい字幕 フォント、色、サイズ
EnglishCC showing a YouTube-style video with hover word lookup and a vocabulary sidebar.
What it does

目的はひとつ:YouTube 字幕をもっと読みやすく。

EnglishCC stays close to the video. It improves the subtitles you are already reading and turns quick word lookups into reviewable vocabulary.

Cleaner captions

Render YouTube English captions in a custom layer with readable font, size, color, background, and shadow settings.

Hover word lookup

Move over a subtitle word to open a compact dictionary card without interrupting the sentence layout.

Intentional saving

Lookups are recorded first. A word joins your vocabulary book only when you save it or enable an auto-save rule.

Vocabulary review

Review saved words with meaning, original subtitle sentence, source video, sorting, and date or video grouping.

Listening support

When accurate cue timing is available, sentence controls can help you replay the line you are studying.

Local-first privacy

Saved vocabulary, lookup history, and settings stay in browser storage.

How it feels

シンプルな視聴フロー。

The product loop is deliberately small, so it can live inside a normal YouTube session instead of becoming another study dashboard.

Open a video

Use a regular YouTube video with English captions available.

Read better captions

EnglishCC rebuilds the caption layer so it is easier to follow for long videos.

Hover a word

A lookup card appears with a basic meaning and an explicit save action.

Review later

Saved vocabulary keeps the word, meaning, original line, and source video together.

Privacy shape

Designed for a local learning loop.

EnglishCC does not need an account for its first release. Vocabulary, lookup history, and caption settings are stored in your browser.

No account requiredLocal vocabulary storage

Chrome Web Store での公開を準備中です。

EnglishCC is being prepared for its first public extension release. This site hosts install status, privacy notes, support details, and future release updates.

インストール状況を見る