Looposer by Victor Raso
Looposer lets you loop, transpose, and control the speed of any video in your browser. Perfect for learning songs, practicing instruments, or studying any video content.
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About this extension
Looposer is a looper and transposer for browser videos. Set loop points to repeat any section of a video, transpose the pitch up or down by semitones, fine-tune the frequency, and control playback speed — all without leaving your tab.
Ideal for:
Features:
Ideal for:
- Musicians learning songs by ear
- Instrument players who need to slow down and repeat sections
- Language learners studying pronunciation and rhythm
- Anyone who needs precise control over video playback
Features:
- Loop any section of a video with precise timestamps
- Transpose pitch up or down by up to 12 semitones
- Fine-tune frequency between 400 Hz and 480 Hz
- Adjust playback speed from 15% to 300%
- Save multiple loops and settings per video — picks up right where you left off
- Save your favorite videos to a playlist
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Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0
- Size
- 75.49 KB
- Last updated
- a month ago (Feb 24, 2026)
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- Version History
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The developer of this extension asks that you help support its continued development by making a small contribution.