Home

Karaboss, the free MIDI player that does more!

Do you like to sing? Do you like to play music? then Karaboss is for you.
Karaboss is a free, full-featured, easy-to-use karaoke player for MIDI (.mid) and karaoke (.kar) files.
Karaboss runs under Windows and uses MIDI format files. If you’re a musician, it’s the perfect companion for making your own arrangements, because among its hidden talents, it’s also a score editor (MIDI sequencer).

A simple, complete MIDI karaoke player for musicians and singers

Karaboss Player

Karaoke Window

Karaboss is a free karaoke player designed for anyone who loves to sing alone or in a group, perfect for practicing or entertaining friends.

Sing along to your favorite songs, accompanied by a full orchestra, and let yourself be guided by the lyrics that appear on your screen, which scroll as you go along, indicating the syllable to be sung by coloring it in.

You can have an instrument play the melody, or disable the music guide with a single click.
Do you play an instrument? Disable your instrument’s track by displaying the editor and muting your instrument’s track.

Similarly, Karaboss lets you transpose the key of each song to match the pitch of your voice.
Last but not least, you can slow down (or speed up) the speed of a song at will for your practice sessions.

Karaboss uses MIDI files available in large numbers for download from numerous websites.
Build up a library of your favorite songs and prepare your evenings with the playlist manager.

Karaboss evolves regularly, is very easy to use, will give you a great time and is, above all, free!

Click here for more information.

For composers: a score editor

Enter notes

Karaboss can also edit MIDI files, transforming itself into a score editor.
For karaoke fans, it makes it easy to add lyrics to MIDI files that don’t have any, or to modify them, either to correct them or to make a pastiche of a well-known song.

Experienced musicians can create their own scores from scratch, thanks to its score editor (MIDI sequencer).

To find out more,  click here.

Where to find songs for free?

Karaboss uses MIDI files available in large quantities on the Internet, either as free downloads or with registration, or on specialized pro sites offering high-quality music files at a low cost (around a few euros).
Find out more in this article.

  • MIDI format: meaning * .mid files (only music) or * .kar (music + lyrics)

How can I improve the sound of MIDI files?

To improve sound quality, don’t hesitate to replace the basic sound synthesizer provided by Windows with the excellent VirtualMIDISynth, available free of charge from the CoolSoft website.

You can also download a sound bank, which has the advantage of containing the sounds of real instruments, replacing those generated by the synthesizer. There are many available for download on the Internet.
Try my favorites: Timbres of Heaven by Don Allen and Arachno SoundFont by Maxime Abbey.

Finally, you’ll need to configure the VirtualMIDISynth synthesizer to use the sound bank.

It’s not complicated and the result is well worth the effort. For more explanations, read this article.

Download Karaboss?

It’s easy, it’s free, just create an account on this site and download the software here:

Download Karaboss

Social networks

Karaboss is on Facebook here and on Youtube here.

News

A new version of Karaboss has been released: 1.0.10.3

A new version of Karaboss has been released The version 1.0.10.3 of Karaboss is available since January 9th, 2025. You can downloadt it from the download area of Karaboss Web Site. For that you must authenticate . If you do not have an account yet, don’t panic, it’s free, just create your account and that’s it. Create an account in two steps The registration to Karaboss is …

1 . Download Karaboss

Sorry, but you do not have permission to view this content.

You must be logged in to access this resource

Create an account in two steps

The registration to Karaboss is performed in two steps. All you need is a valid email address.

Step 1:

  • Click on “Register
  • Fill in the three fields
  • “Username”: this will be your nickname. You will use it to connect to your account.
  • “Email”:  must be valid. You will receive an email with a registation confirmation.
  • “Enter Code”:  a simple code to recognize inside an image in order to check that you are a human being from the earth and not a cyborg of Eckmuhl (they are a little limited)

Click on “Register” button.

Step 2:

  • Open your mail and the email sent by Karaboss. Warning,  it may have been classified elsewhere by your email such as “social networks”, “promotions”, or even “junk mail” 🙂
  • Click on registration confirmation link whitin the email in order to display the password creation page.
  • Chose a password  strong enough to hold more than 30,000 years against a quantum computer. There you go !

Notes

  • If you have forgotten your password, you can regenerate it by going to the login page: there is a link at the bottom entitled “Forgot your password? (This is available only if you are already registered. That is to say, you have already a nickname AND a password)
  • If the mail sent never arrives, please post a comment and I will check.

Music chord recognition

Karaboss is now able to display the chords contained in a MIDI file.Chords can be displayed dynamically, i.e. at the same time as the lyrics (for singing along with an instrument, for example), or at a standstill for more detailed study of a song and its accompaniment. The chords of a song can be obtained …