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.AMR·File Extension

AMR Audio — A .amr file is a AMR Audio. It is an audio format used to store music, voice and sound effects, either lossy or lossless.

Audioaudio/amr

Quick facts

Extension.amr

File typeAMR Audio

MIME typeaudio/amr

CategoryAudio

Charset—

Compressible—

What is .amr

What is a .amr file?

A .amr file is a AMR Audio. It is an audio format used to store music, voice and sound effects, either lossy or lossless.

In the mime-db registry it maps to audio/amr. When serving .amr over HTTP, set the Content-Type header as shown in Developer info below.

Related entities: it maps to audio/amr — and is delivered over HTTP via the Content-Type header.

How to open .amr files

Use VLC or Windows Media Player to open and edit .amr files.
Any text editor (Notepad, VS Code) can inspect the raw content as text.

Developer info

When served over HTTP, responses should set the following header:

Content-Type: audio/amr

Common software that reads/writes .amr:

VLCWindows Media PlayerAudacityQuickTime

Relation chain

.amrextension of

format

AMR Audioserved as

mime type

audio/amrsent via header

http header

Related extensions

Related MIME types

Common uses

Music and podcasts
Sound effects
Voice recordings

How to edit .amr files

Open the file with VLC, make your changes and save.
Most editors preserve the original formatting and encoding — avoid changing the charset.

How to create .amr files

Create a new file and save it with the .amr extension, or export this format from VLC.

Frequently asked questions

What programs can open .amr files?

Common options include VLC, Windows Media Player, Audacity. You can also open many of these files with built-in viewers or a browser.

How do I create a .amr file?

Create a new file in any text editor or the app that owns the format and save it with the .amr extension.

What is the relationship between .amr and the audio/amr MIME type?

audio/amr is the media type identifier used for .amr files during network transfer (for example in the HTTP Content-Type header).

Sources & standards

Updated 2026-09-13

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