| What it does | Change the key of audio in your Chrome tab while keeping vocals natural
| AI voice-over and subtitles for any video in your browser in 38 languages
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| Stage | Not given
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| Founded | Not given
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| LT
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Premium: 2 credits per minute voice-over, or 0.2 credits when replaying a voiced video; Standard: 1 credit per minute, or 0.2 credits replayed; Economy: 0.5 credits per minute, or 0.2 credits replayed. Subtitles only: 1 credit per minute (Premium translation) or 0.5 credits (Economy). One-time packs
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| Key features | - Pitch shift from −12 to +12 semitones
- Fine-tuning by ±50 cents
- Keep vocals natural mode enabled by default
- Preserves playback speed while changing pitch
- Works with YouTube, YouTube Music, Spotify Web, SoundCloud
- Video stays synchronized with processed audio
- Remembers pitch preferences for each song
- Keyboard shortcuts for pitch adjustment
- Processes audio locally with no uploads
- Powered by Key Changer Engine for natural pitch shifting
| - Works on any video player including YouTube, streaming sites, course sites, and live streams
- No subtitles required; translates from audio directly
- 38 languages supported for voice-over and subtitles
- Maintains consistent character and place names throughout series
- Synchronized voice-over that follows pauses and seeking
- Original audio remains audible at adjustable levels
- Automatic language detection
- Subtitles-only option at lower credit cost
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| What makes it different | - Preserves natural vocal character while shifting pitch
- Processes audio locally in browser, no data uploaded
- Works with most major streaming platforms without additional setup
- Video stays perfectly synchronized with pitch-shifted audio
| - Works where subtitles don't exist, translating directly from audio
- Proper translation support for small languages like Lithuanian, Slovak, Czech and Ukrainian with correct grammar
- Free replay of already-voiced content within 90 days and for archived videos
- Only 40 free credits needed to start, no card required
- Library of pre-voiced popular videos to watch immediately without waiting
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ● no change since last check | 1 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 1 |
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| Citation Flow (Majestic) | 12 | 15 |
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| Referring domains (Majestic) | 2 | 5 |
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Key Changer
Vocnu