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DFF file: what it is and how to open it

DSDIFF audio. Here is what a .dff file contains, how to open one on any device, and a viewer that opens it right in your browser.

Open a .dff file hereChoose fileRead in your browser. Nothing is uploaded.

What the viewer shows

  • Whether the file matches the .dff signature
  • The first bytes as hex
  • A preview when your browser can display it

What is a .dff file?

A .dff file is a DSDIFF audio. Its registered MIME type is audio/x-dff, which places it in the audio family of formats.

DSDIFF stands for Direct Stream Digital Interchange File Format.

DFF is a binary format: the contents are not readable text, so opening it in a text editor shows scrambled characters.

DFF file format details

Extension.dff
FormatDSDIFF audio
MIME typeaudio/x-dff, audio/dff
CategoryAudio
Text or binaryBinary
File signatureNone fixed
Registered with IANANo
Other extensionsNone

How to open DFF files

WindowsVLC media player is free and plays almost every audio and video format, DFF included in most cases. Media Player and Films and TV handle the common ones.
MacQuickTime Player plays formats Apple supports. VLC or IINA play most others.
iPhone and iPadThe Files app plays formats Apple supports. VLC for iOS plays most others.
AndroidMost gallery and music apps play common formats; VLC for Android plays almost everything.

Can you convert a .dff file?

TapToConvert does not convert DFF files yet. If you can export the file from its program as a common audio format, the audio converter can turn it into anything else.

DFF file FAQ

What is a .dff file?

A .dff file is a DSDIFF audio, with the MIME type audio/x-dff.

How do I open a .dff file?

VLC media player plays most audio and video formats on Windows, Mac, iPhone and Android.

Is a .dff file safe to open?

DFF files hold data rather than programs, but any file from an unknown source can be crafted to exploit the software that opens it. Keep that software up to date. The viewer on this page only reads the bytes and never runs anything.

What is the MIME type of .dff?

audio/x-dff, and it is also seen as audio/dff. Web servers send this type so browsers know how to handle the file.

Is DFF a text or binary format?

Binary. Its contents are not readable as text.

File type facts come from the IANA media type registry, the mime-db project and the freedesktop.org shared MIME database.

Similar file types

Try MP4 to MP3, HEIC, merge PDF or compress video.