Convert MP3 to ASF Online for Free

  1. Click Add Your Media and upload your MP3 file.

  2. Make sure that the output format is set to ASF.

  3. Click Convert.

Popular converters:

4.7 (18,952 reviews)
Available translations: EN, DE, FR, IT, ES, PT, NL, PL, JP, KR, ZH
Convert to

How to convert MP3 to ASF using Movavi Converter

If you need to convert multiple files or your file is too large for the online converter, try the desktop alternative. The Movavi converter is a versatile audio, video, and image format changer. It deals with over 180 file formats, can convert files in bulk quickly, with high output quality and resolution. Its SuperSpeed mode gives you the fastest conversion speed and no quality loss. It has versions for both Windows PC and Mac and is really lightweight, allowing you to process photos, movies, and music files even on a weak computer.

How to convert MP3 to ASF fast and easy? Read the guide below to find out!

Step 1. Download and install the Movavi converter

How to use a file converter? First, download the version of the software for Microsoft Windows or Macintosh, launch it, and proceed following the on-screen instructions. When the app is installed to your computer, it will run automatically.

Step 2. Add your MP3 files

Locate the MP3 files you want to convert and drag-and-drop them into the program’s window. The application can convert big batches of files – there’s no limit to how many files you can transfer at once.

Step 3. Select ASF as the output format

In the Formats menu, select the file type you want to turn your media into and choose the target format for the files. Also, you can change the conversion settings: choose a different bitrate, resolution (including HD, Ultra HD, and even 4K), codec, etc. Pay attention to the SuperSpeed label: it indicates that the conversion will be performed with a very high speed and without losing quality.

Step 4. Convert MP3 to ASF

To specify the output folder, click the Save to button. Hit the Convert button to launch the process. When the converting is done, the new media files will be saved to the chosen folder.

Now you know how to change the file format using the Movavi converter. WIth this tool, you can also reduce the file size, cut out clips from videos, crop pictures, and create animations from your favorite movies. Get the free trial version and test it out!

Converting MP3 to ASF for free online is a straightforward process that allows you to adapt your audio files for various multimedia applications. ASF (Advanced Systems Format) is a versatile container format developed by Microsoft, capable of storing both audio and video data. Here's a simple guide on how to convert MP3 to ASF online for free.

To begin, select a reputable online converter that specializes in audio file conversions. You can easily find such services by searching for "how to convert MP3 to ASF online for free." Numerous websites offer this feature without any cost.

Once you've chosen a suitable online converter, access its platform. Typically, you'll find an option to upload your MP3 files. Locate the "Upload" button and select the MP3 files you intend to convert. Many converters support batch processing, allowing you to upload multiple files simultaneously.

Next, specify ASF as the desired output format. Look for an option or dropdown menu that lets you choose the output format. In this case, select ASF from the available formats.

After you've adjusted your preferences, begin the conversion procedure by selecting the "Start" button. The conversion tool will subsequently handle your MP3 files, converting them into the ASF format.

Once the conversion has finished, the tool typically offers links for downloading the recently transformed ASF files. Simply click on these links to store the ASF files on your device.

In summary, you can convert MP3 to ASF for free online. It is a user-friendly method to prepare your audio files for various multimedia applications. ASF files are widely compatible, making them suitable for a range of media playback scenarios. Whether you're working on multimedia projects or need a format compatible with specific software or devices, this online conversion method ensures you have the flexibility to meet your needs.

What is MP3?

Full name

MPEG-1 Audio Layer III

Format type


Developed by

Specialists from Fraunhofer Society


The MP3 format was created in 1991, and its specification was published in 1993 as a part of the MPEG-1 standard. Originally, MP3 was made as a proprietary format, but now it is free to use by anyone. MP3 matured into the most widespread audio format in the world. It is probably not possible to find a program that can’t open and play MP3s. But technologies are always developing, and many broadcasting companies now prefer other file types with better compression and less sound quality reduction.

File extension


Technical details

MP3 (MPEG-1 Audio Layer III or MPEG-2 Audio Layer III) is a format for the lossy compression of sound. The quality and size of MP3 files are defined by their bitrate. So, if you’re wondering how to compress your audio files while keeping the quality, consider converting them to MP3 with a bitrate of 192 kbit/s or higher. Then you probably won’t be able to hear any difference in the playback.

Associated programs

Almost any multimedia program

What is ASF?

Full name

Advanced Systems Format

Format type


Developed by



ASF (Advanced Systems Format) was created by Microsoft with the primary objective of supporting HTTP and media server playback. If you are not sure how to play an ASF file, you’ll find information about the ASF format specification and a list of programs that can help you open media of this file type below.

File extension


Technical details

An ASF file can contain multiple audio and video streams and be encoded with various codecs. The ASF file type is most often used for streaming media. An ASF file can also include metadata, text, and web pages.

Associated programs

Windows Media Player, CyberLink PowerDVD, VLC, and Winamp

Join for how-to guides, speсial offers, and app tips!