Speed-Pitch changer

Name: Speed-Pitch changer
Rating: 4.2353 (51 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.

Overview

Firefox Add-ons Store

Daily users

6,730 ▼ 2

Data as of 2026-08-23

Rating:

4.24

(51)

Version:

1.4.2

Last updated: 2024-02-07

Photos, Music & Videos

Features & Capabilities

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.

User Growth & Download Statistics

Add-on Entertainment Music & Audio

By:

Daily users:

Rating:

Version:

1.4.2 Last updated: 2024-02-07

Version code:

5689098

Creation date:

2021-05-19

Risk:

Permissions:

Size:

62.13KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-23

Compare stats and ranking:

Ranking

# 969 ▼ 1

Other rankings

#157 in Photos, Music & Videos

#2 in pitch keyword 39

#9 in speed keyword 49

#12 in exchange keyword 12 ▲ 1

#33 in spend keyword 39

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For Developers

Monetize with App Pass Boost with Extension Booster

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:

Prime_arys

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/speed-pitch-changer/

Permission Change History

2024-02-06: Version 1.4.0 → 1.4.1

Remove Permissions: notifications

2023-07-16: Version 1.3.1 → 1.4.0

Add Permissions: notifications

User Reviews

Users praise Speed-Pitch Changer for being easy to use, free, and effective for experimenting with music on YouTube, karaoke, and nightcore-style tweaks. They highlight accurate pitch and independent speed/pitch control, and many note it works well on Firefox and compares favorably to Chrome alternatives. The main drawbacks are pitch-shifting artifacts and variable audio quality across pitches, plus occasional quirks on some sites. Despite these issues, the add-on remains a popular, practical tool for practice, experimentation, and performance preparation.

Pros

Easy to use
Pitch-accurate with independent control of speed and pitch
Free
Great for karaoke/nightcore
Strong Firefox performance and a top alternative to Chrome-based tools

Cons

Pitch-shifting artifacts/low audio quality across pitches

Recent reviews

Работает в Youtube Music, Spotify, яндекс музыке и в обычном Youtube, если что изменяет саму скорость трека вместе с тональностью, а значит нету потери качества в звучании. Обновить бы дизайн, и был бы идеальным расширением, но во всяком случае других альтернативных расширений я не находил

by Xi*****, 2026-07-09

Working as intended. More people need to use this!

by He*****, 2026-06-23

View all user reviews ›

Is Speed-Pitch changer 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.

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.
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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.

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.
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