M3U8 File Extension

M3U8 file icon

UTF-8 M3U Playlist Format

What is a M3U8 file?

UTF-8 M3U Playlist Format, identified by the M3U8 extension, is a Settings Files type and includes 1190 files.

The UTF-8 M3U Playlist Format (M3U8) was created by Apple, a company that developed file format and produced 72 programs for their use.

M3U8 files are compatible with various operating systems, including Windows, Mac OS and Linux. If you need to open a M3U8 file, you can use one of 5 programs, such as VLC media player, iTunes and Winamp.

MIME types

  • audio/x-mpegurl

File Signature

HEX code: EF BB BF 23 45 58 54 4D 33 55 0D 0A. ASCII code: ...#EXTM3U.

How to open a M3U8 file?

If you’re having difficulty opening a M3U8 file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.

VLC media player, iTunes and Winamp are recognized as the most popular software solutions for dealing with M3U8 files. To install the most up-to-date edition of VLC media player, visit the official VideoLAN website. You can download the build that works across all operating systems.

After successful installation, your operating system should seamlessly handle M3U8 files via VLC media player.

Set VLC media player as your default M3U8 viewer

Setting a default program by file type in Windows

  1. Right-click your M3U8 file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
  2. From the list of applications in the pop-up window, find and select VLC media player as your desired application;
  3. Check the "Always use this app" checkbox, and then click "OK" to set your chosen app as the default for opening M3U8 files.

Set default app to open files on Mac

  1. Right-click or Control + left-click on the desired M3U8 file to open a menu of available actions;
  2. Select "Open in application" and click "Other";
  3. Go to the lower section of the window, where you will find the "Enable" menu. By default, it is set to "Recommended Programs";
  4. Select "All Programs" from this menu and proceed to search for VLC media player. Check the box next to "Always open in app" to set it as the default option.

How to edit a M3U8 file?

Editing M3U8 files requires installing professional software that lets you open and edit settings files. Online editors have more limitations compared to dedicated UTF-8 M3U Playlist Format programs.

List of Top M3U8 editors 2026

With the mentioned criteria in mind, we have assembled a selection of M3U8 editors.

M3U8 Editor SoftwareDeveloperPlatformsOverall Rating
VLC media playerVideoLANWindows, Mac OS, Linux, Android4.4 out of 5 (41 review)

Convert to and from M3U8

When a M3U8 file is not easy to work with, converting it to formats like AAC, M3U, X or other comparable types may help.

Converting a M3U8 file may not fully retain all functionality, but it is generally possible to return it to the original format.

Convert M3U8 to other file formats

Converting Files to M3U8 Format

Solving Common M3U8 File Challenges

M3U8 files may present some challenges, but most can be easily addressed with minor software tweaks. See the troubleshooting tips below for guidance.

Are there any techniques or tools available to repair a damaged M3U8 file?

Open the damaged M3U8 file with a recovery program, and then select the "Repair" menu item to start the repair process. Wait for the recovery process to finish, as it will automatically repair damaged settings files.

What are the telltale signs of a corrupt M3U8 file?

Corrupted M3U8 settings files may show the following signs:

  • Unexpected expansion of the total size of the M3U8 file;
  • Opening or processing the file in VLC media player or other programs causes instability or crashes in the program;
  • The file shows errors when trying to open it or does not open completely;
  • While working with the file, error messages appear;
  • Editing the archive in VLC media player is accompanied by slow performance or delays;

What factors contribute to VLC media player crash?

VLC media player crashes can occur due to outdated software versions. To mitigate this, install the latest updates for VideoLAN products.

A simple restart of your computer can often fix many common problems, which is why it is the recommended first step before making any adjustments to your software settings.