MP3 Key Changer for Windows

Name: MP3 Key Changer
Rating: 4 (3 reviews)
Author: Song Galaxy

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Editors’ Review

Download.com staffFebruary 26, 2026

This software lets you easily change the key and tempo of MP3 and Wave songs with high-quality saving. Perfect for backing tracks or adjusting playback speed.

Pros
- Adjust song key by +/12 semi-tones
- Change tempo by half or double original speed
- Improved saving algorithms for higher quality
- Listen to high-quality preview before saving
- Easy to use interface
Cons
- Demo version limited to one-third of song playback
- Demo version allows only 3 saves
- Upgrade purchase required for full functionality

MP3 Key Changer for Windows

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Used MP3 Key Changer for Windows?

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Full Specifications

GENERAL

Release: September 20, 2010

Latest update: February 26, 2026

Version: 2.0

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 7
Windows ME
Windows XP
Windows 10
Windows Vista
Windows 2003
Windows NT
Windows 2000
Windows 98

Additional Requirements: None

POPULARITY

Total Downloads: 94,493

Downloads Last Week: 8

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Last Updated

User Reviews

4/5

3 User Votes

The Best Key Changer for MP3 Music Out There!
tommwellsJuly 19, 2011
Pros
Very easy to use. Also changes tempo! Others that I have used in the past have distorted the music at times, this one doesn't distort!!
Cons
It is a bit slow, but worth the wait.
Summary
I have purchased 4 or 5 key changers, now I have one that works perfectly...and as a bonus, it also changes tempo. This is the best.
Warble
caelachDecember 2, 2005
Pros
A great idea, BUT (see below). Well, it did transpose the key.
Cons
Transposing the key causes an jittery warble in the sound. Like a lag on streaming audio. Kind of pointless isn't it? What good is a song in a different key that sounds messed up? Maybe saving the file would negate this effect, but I'm not going to buy it to find that out. The point of a trial is to see what it can do.
Summary
Having a party? Edit your mix with this, you won't regret it.
Violin RomanceNovember 24, 2005
Pros
Hands down, this is one of the best Mp3 Tempo / depth changers to date. Easy to use, quick installation, and extremely easy user interface. No advanced things to know. Just click LOAD and click whether you need the song to have a higher pitch / tempo or a slower pitch / tempo. (The up arrows increase tempo and down decreases, ditto for the transponse.) Yes, it's that easy. Also this is useful if you're throwing a party of some sort, and if you need dance music. Is that one song you like too slow? Download this program, save your files, and let the fun begin! Whether you're an aspiring DJ or someone that likes to use the pitch / tempo increase to make songs funny sounding, this program is amazingly simple and excellent to use. Nothing arcane or abstract about it. Grab the program, grab your song, and you're set. LHHRS Kevyn @-)------
Cons
First of all, the price to buy it. Secondly, there's a limit to the tempo / pitch, I would imagine it wouldn't hurt to just have no limits the tempo. But that's irrelevant and not such a big deal anyway... LHHRS Kevyn @-)------
Summary

Developer’s Description

By Song Galaxy

Change key & tempo of MP3 & Wave songs, with high quality saving algorithms.

Do you want to sing along with a backing track, but the key is too high? Or would you like your song to play a little faster? You've found the right software: ... MP3 Key Changer V2 allows you to transpose the key and change the tempo of any MP3 or Wave song file. Transpose song key by up to +/- 12 semi-tones. Adjust tempo by up to half or double the original tempo. Demo version allows you to play only the first third of a song, and allows 3 saves before you need to purchase and register. Version 2 offers Improved saving algorithms for Higher Quality editing! Plus, you can now listen to a High Quality preview clip to check your adjustments before saving. And, of course, MP3 Key Changer is still as easy to use as ever. Users of Version 1 are invited to upgrade to Version 2 and benefit from the improved quality and features, upgrade code can be purchased at our webshop.

MP3 Key Changer for Windows

Editors’ Review

Pros

Cons

MP3 Key Changer for Windows

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User Reviews

The Best Key Changer for MP3 Music Out There!

Warble

Having a party? Edit your mix with this, you won't regret it.

Developer’s Description