All about META4 Files

The META4 file type is primarily associated with aria2.

META4	File extension: META4
	File type:	structured XML file

What is a META4 file

META4 files mostly belong to aria2. META4 files are XML-based files that detail download resources using the Metalink standard. These files list mirror URLs, file sizes, and checksums to help download managers retrieve files from multiple sources.

Structure: They use XML, making them both human-readable and machine-parsable.

Usage: They provide data on available download mirrors and verify file integrity.

Support: Tools like MirrorBrain and aria2 use these files for improved download performance.

FilExt.com tips: This configuration allows download software to choose the fastest mirror or resume transfers when errors occur. You can inspect a META4 file with any text editor to see its content. For more details, check out the information available at MirrorBrain.

How to open a META4 file

You need a suitable software like aria2 to open a META4 file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your META4 file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a META4 file directly in the browser:. Just drag the file onto this browser window and drop it.

Online META4 Text Viewer

Choose your .meta4 file to view

or drag and drop it here

Online File Viewer

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How to extract texts from META4 files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

You can extract texts from META4 file or capture a preview screenshot using our online META4 file viewer:

Just click the "Choose your .meta4 file to view" button on this page.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
Download the converted file.

Programs that open and convert META4 files:

aria2
See the previous paragraphs to learn more about the main application. META4 files are often referred to as aria2 data files because this type of file is primarily created or used by this software.
MirrorBrain
A *.META4 file is a Metalink Download Description File, primarily used by MirrorBrain, a content distribution network. It uses XML as its internal file format and provides metadata about downloads, enabling efficient file distribution across multiple mirrors. These files enhance download reliability and speed by helping download managers like aria2 locate the best mirror for a given file. This file format is classified as Data.

Technical Data for META4 File Extension

File classification:

Data

Mime type:

application/metalink4+xml

a meta4 structured XML file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with META4 files

Associate the META4 file extension with the correct application.
Update your software that should actually open structured xml files. Because only the current version supports the latest META4 file format. Search, therefore, e.g. on the manufacturer website after an available aria2 update.
To make sure that your META4 file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .META4 file online - secure, fast, and no downloads needed.