Speed-Pitch changer

Name: Speed-Pitch changer
Rating: 4.1316 (38 reviews)
Author: Prime_arys

(EN) Modify the speed with the pitch of a video or audio. (FR) Modifiez la vitesse avec la tonalité d'une vidéo ou d'un audio.

Download

Install Compare

Speed-Pitch changer is a versatile Chrome extension designed to modify the playback speed and pitch of videos or audio on the web. Ideal for fans of nightcore or anyone wanting to customize the audio experience, this tool allows users to adjust speed values without limits and independently alter pitch with intuitive controls (♭ and ♯ buttons).

Key features include support for web audio on most websites, the ability to toggle pitch preservation, selective site activation for the extension, and customizable keyboard shortcuts (default: * + - . on the numeric keypad). The open-source nature offers transparency and the potential for community contributions. Enhance your online audio experience with precise speed and tone adjustments tailored to your preferences.

Add-on Productivity Entertainment Music & Audio Utilities

By:

Daily users:

Rating:

Version:

1.4.2 Last updated: 2024-02-07

Version code:

5689098

Creation date:

2021-05-19

Risk:

Permissions:

storage
activeTab
tabs
<all_urls>

Size:

62.13KB

Full description:

Source:

Firefox Browser Add-ons

Updated:

a day ago

Ranking

# 1,017 ▲ 12

Other rankings

#150 in Photos, Music & Videos

#2 in pitch keyword 38

#6 in changelog keyword 17

#8 in change color keyword 14

#11 in speed keyword 65

Upgrade to see more rankings

User reviews

Users appreciate Speed-Pitch changer for enabling independent pitch and speed adjustments, making it ideal for karaoke and audio modification on Firefox. It's considered superior to similar Chrome extensions but experiences issues such as distorted or low-quality pitch shifts, glitches with certain platforms like Spotify and YouTube, and occasional reliability problems. Overall, it's valued for its unique capabilities and ease of use despite some audio quality and compatibility concerns.

Pros

Allows independent adjustment of speed and pitch effectively for audio playback.
Useful for karaoke and singing practice by changing keys and tempo.
Works well on Firefox as a unique solution among browsers.
Simple and user-friendly interface with well-designed controls.
Offers better performance compared to similar add-ons on other browsers like Chrome.

Cons

Pitch changing feature can produce low-quality or distorted audio at certain pitches.
Sometimes the pitch adjustment is barely audible or incomplete when adjusted independently.
Compatibility issues with some platforms (e.g., Spotify, YouTube's built-in speed controls).
Audio artifacts or robotic sound quality noticed especially at higher pitch changes.
Extension occasionally resets or fails to stay enabled, leading to reliability problems.

Recent reviews

This extension is really satisfactory for audio and pitch speed changes, whether you decide to alter the tone or not while increasing the speed, the only exception is that when you only increase the pitch, it is barely audible and does with the current one instead of editing exactly that. Otherwise, it works well

by Sa*****, 2025-06-11

Странно работает

by Ul*****, 2025-05-22

works almost perfectly but it stops youtubes built in speedup from working

by no*****, 2025-05-21

View all user reviews ›

Extension safety

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.

Speed-Pitch changer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****

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 Browser Add-ons, 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.

Speed-Pitch changer has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******

Upgrade to see full risk analysis details

Instantly check and monitor your browser extensions' risks and permissions with Extension Guard.