SideLingo

Learn from the videos you watch on TikTok and YouTube with SideLingo. • Read subtitles and comments in bilingual, translation-only or original-only mode. Click a subtitle to replay from that point. • Practice English listening with phrase cards created on your device: listen to a sentence, arrange the shuffled cards and see instant feedback. Replay at normal speed, 0.75× or 0.5×. • Save sentences to practice later. The learning manager shows original text, available translations and statistics across videos; open a sentence in a new tab or remove it. • Hide distracting page elements with lights-out mode. Subtitle and listening panels adapt to light and dark themes. Google web translation is selected for new installations; Microsoft web translation is also available without a key. Service availability and limits vary by region. You can configure your own compatible AI service, which may require a paid account. Listening practice needs readable online text subtitles and their timestamps. Text embedded in video images cannot be used; audio is not transcribed. English phrase grouping runs locally using bundled Compromise and needs no AI key. Saved learning records stay in this browser. Translation text is sent directly to your selected service, with no developer relay server. Interface available in 20 language variants. Independent extension, not affiliated with TikTok, YouTube or the translation providers.