3 Ways to Convert MIDI to MP3


Ever wondered how to convert your MIDI files to the MP3 format? Well, you're in the right place.

In this guide, we'll take you through the easy process of converting your digital content to a versatile format and making your music ready for sharing and playback across diverse platforms.

We'll break down the differences between MIDI and MP3, explore the audio converters you need, and guide you through the process step by step.

What is a MIDI file?

MIDI, which stands for Musical Instrument Digital Interface, is a file format that contains audio data.

Unlike other audio files, MIDI format doesn't store actual sounds but rather a set of instructions that control how musical notes and other information should be played. These include details such as pitch, duration, volume, and instrument choice.

In essence, a MIDI file serves as digital sheet music or a sequence of commands that can be interpreted by electronic instruments, synthesizers, and computer software. This makes MIDI a popular format for musicians, allowing them to create, edit, and share compositions without dealing with fixed audio recordings.

Option 1. FreeConvert

FreeConvert is a web-based platform that provides a variety of file conversion tools. Without any software installation, this online audio converter enables users to change files between different formats.

How to turn MIDI files into MP3:

  1. Visit the website.
  2. Press the "Choose Files" button or drag and drop your MIDI onto the designated area. You can upload MIDI to the converter from Dropbox, Google Drive, One Drive, or URL.
  3. In the "Output Format" dropdown menu, select "MP3" as the desired format.
  4. Optionally adjust any additional settings.
  5. Click "Convert" to initiate the audio conversion process.
  6. Save the converted MP3 file to your computer.
MIDI file converter - FreeConvert

FreeConvert offers a comprehensive experience with additional features that enhance audio file processing. In addition to handling a broad array of file types, this free audio converter provides users with the ability to edit music files prior to conversion.

Users can take advantage of features such as codec selection, volume adjustment, fade in/out options, reverse playback, and trimming functionalities.


  • The option for batch conversions allows you to convert multiple files at once, which is a significant time-saver.
  • The audio converter offers a generous max file size - up to 2 GB.


  • Bulk MIDI to MP3 processing is limited to 5 files at a time with the free version.
  • The working area is surrounded by advertisements unless you opt to pay to remove them.

Option 2. Online-Convert

Online-Convert audio file converter supports the conversion of files across various categories, such as documents (PDF, DOCX), images (JPEG, PNG), videos (MP4, AVI), audio (MP3, WAV), and more. The tool's simplicity and accessibility make it a practical choice for users seeking quick and hassle-free MIDI to MP3 file conversions.

How to change MIDI file to MP3:

  1. Open the MIDI file converter.
  2. Tap "Choose file" or drop the file in the green area. This MIDI to MP3 converter also has an option for file upload from Dropbox, Google Drive, or URL.
  3. In the "Optional settings" section, adjust audio settings according to your preferences.
  4. Click "Start" to initiate the process.
  5. Once the conversion is complete, download the MP3 file.
MIDI to MP3 converter - Online-Convert

For audio conversions, such as MIDI to MP3, Online-Convert provides users with customization options like setting bitrate, sampling rate, and other settings. Additionally, it has extra editing features, like trimming or modifying the file before downloading.


  • A variety of settings can be adjusted during the audio conversion, giving a high level of control of the output file.
  • Several audios can be processed at the same time.


  • The free version allows to convert only up to 3 files per operation.
  • Small ads on the website can detract from the overall user experience.

Option 3. Zamzar

Zamzar is an online audio converter that allows users to convert files from one format to another. The platform supports a wide range of file extensions, including documents, images, sound, video, and more.

Learn how to transform your MIDI files into MP3s:

  1. Open the MIDI to MP3 converter and press "Choose Files".
  2. Select the MIDI file for conversion from your device, OneDrive, Google Drive, Dropbox, or Box, or enter a URL.
  3. Choose "MP3" as the output format from the drop-down menu.
  4. Enter your email address to receive the converted file (if needed).
  5. Hit "Convert Now" to start the process.
  6. Check your email for a link with the resulting file.
  7. Download the converted MP3 file onto your device.
Save MIDI as MP3 with Zamzar

There is an option to send an email notification to yourself. This allows you to do other things on your computer and not miss the moment when the MP3s are ready.

With just a few clicks, you can quickly convert your MIDI format files to MP3 using Zamzar and listen to your tunes on any device.


  • Clean and easy-to-navigate interface is accessible for users with varying levels of technical expertise.


  • With the free MP3 converter, you're limited to 5 concurrent conversions only. To process more, you'll have to upgrade.

MIDI vs. MP3

File TypeDigital score or instructions.Compressed audio.
Sound QualityDoesn't contain actual sounds; quality depends on the device and instrument sounds.High-quality audio with compression.
File SizeSmall; primarily contains instructions.Larger due to containing the audio data.
EditingEasily editable; allows manipulation of individual musical elements.Limited editing capabilities without original tracks.
InstrumentationVirtual instruments or external hardware required for playback.No specific hardware needed; plays on any media player.
PortabilityLightweight and easily shareable.Portable but larger file sizes.
CompatibilityCompatible with devices supporting MIDI format.Universally supported on most devices.
Use CaseIdeal for musical composition, editing, and communication between devices.Preferred for final distribution, streaming, and general playback.
Common ApplicationsMusic production, notation software, electronic instruments.Music streaming, portable players, general playback.

What other output format to consider?

Although MP3 is a convenient format to convert to, there are other options you may choose to save your MIDI audio.

  • WAV (Waveform Audio File). Offers high-quality audio with lossless compression, making it ideal for professionals or those who prioritize audio fidelity. WAV files are widely compatible with various devices and software.
  • AAC (Advanced Audio Coding). Provides excellent audio quality with smaller file sizes compared to formats like WAV, making it suitable for storing music on mobile devices or streaming online. AAC is a popular choice for iTunes and listening to music on Apple devices.
  • M4A (MPEG-4 Audio). Furnishes high-quality audio compression, ideal for Apple devices and iTunes. M4A provides good sound quality with smaller file sizes, which is great for mobile playback and digital distribution.
  • Ogg Vorbis. Is supported by many media players and platforms. This open-source audio format offers good quality sound at smaller file sizes compared to MP3, making it suitable for online streaming and sharing.
  • AIFF (Audio Interchange File Format). Is widely compatible with macOS and various audio software. AIFF files offer uncompressed audio with high fidelity, making them suitable for professional audio editing and production.
  • WMA (Windows Media Audio). Is commonly used for online streaming and digital distribution on Windows platforms. WMA files offer good quality sound and are relatively small in size.

By looking into these alternative output formats, you can tailor conversions to better suit your intended use cases, whether it's professional audio production, mobile playback, or online sharing.

MIDI to MP3 conversion: FAQs

Does converting MIDI to MP3 affect the instrument sounds?
Yes, the choice of virtual instruments or synthesizers during the conversion process can impact the final sound. Ensure that the selected instruments complement your musical composition.
Can I convert multiple MIDI files to MP3 simultaneously?
Some conversion tools support batch processing, allowing you to convert several MIDI files in one go.
What role does the codec play in the conversion process?
The audio codec determines the algorithm used for compressing the data. Choose an appropriate codec based on your preferences for file size and quality.
Will the tempo and timing of my music remain the same after conversion?
They should remain consistent if the conversion app and settings are chosen appropriately. However, it's always a good idea to preview the converted file to ensure accuracy.
Can I turn MP3 back into MIDI?
Converting MP3 to MIDI is a more complex process and may not result in the original musical elements. Dedicated applications or services may offer limited capabilities for this conversion.
What should I do if the converted MP3 file has distorted or poor-quality sound?
Experiment with different digital instruments or adjust the conversion settings to improve the quality. Additionally, check for any artifacts introduced during compression.

How to convert MIDI to MP3: conclusion

As a final point, with the proper tools and knowledge, one can effortlessly convert MIDI tracks into MP3 format. It allows for greater versatility and compatibility with various devices and applications.

When changing file formats, it is vital to choose a trustworthy music converter that specializes in converting MIDI files. Pay attention to the quality settings and file size options to achieve the desired output.

Now armed with this detailed guide, you can confidently convert your MIDI files to MP3 format and enjoy them on any device hassle-free!

Alexandra Meyer

Editor-in-Chief at Icecream Apps

With experience spanning over several years, Alexandra Meyer holds the esteemed position of editor-in-chief at Icecream Apps. Originally involved in the website's establishment in 2014, Alexandra now ensures the maintenance of the company's exceptional content standards across their various projects. Specializing in technology, software, online services, and human resources, she has extensively written and edited numerous articles on these subjects.
5 min read
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