Etude · Looper - transpose, slow down, loop Firefox

Etude · Looper - transpose, slow down, loop

Practice with online video: change the key, slow down without changing pitch, and loop sections. Audio is processed locally in your browser.

Features & Capabilities

Etude adds a musician's practice controls to online video.

Transpose to any key and fine-tune pitch in cents. Slow down (or speed up) while keeping the pitch, so you can drill a fast passage. Loop an A-B section and save named loops per video. Audio is processed locally in your browser. No accounts, no tracking, nothing is uploaded. Works on YouTube and other standard HTML5 video.

Open your own local files instead? Use the Etude Looper web app: https://onurcelep.github.io/etude/looper/

User Growth & Download Statistics

Manifest V3 Add-on
By:
Onur Celep
Daily users:
1
Rating:
5.00
(1)
Version:
0.1.4 Last updated: 2026-07-10
Version code:
6343567
Creation date:
2026-07-06
Risk:
Moderate risk impact High risk likelihood
Permissions:
Host permissions:
  • *://*.youtube.com/*
Content scripts matches:
  • *.youtube.com
Size:
120.30KB
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-26
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Onur Celep
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/etude-looper/

User Reviews

müzisyenler için aşırı kullanışlı olmuş elinize sağlık onur bey
by mr*****, 2026-07-24
View all user reviews ›

Is Etude · Looper - transpose, slow down, loop Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Etude · Looper - transpose, slow down, loop requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: youtube.com
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Etude · Looper - transpose, slow down, loop is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Good **** ********* *** **** **** *******
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