LanguageDASH
Dynamic Adaptive Streaming over HTTP video
File type: Digital video and movie file
Files with dash extension can be usually found as video streaming files in Dynamic Adaptive Streaming over HTTP video file format.
Found 2 different file type records with the same dash filename suffix.
What is dash file?
File type category:
Digital video and movie file
Date updated: July 13, 2025
File extension dash is mainly related to the Dynamic Adaptive Streaming over HTTP video file format, also simply known as DASH.
The MPEG-DASH provides a standard specification for multimedia streaming over the Internet. The DASH format is used to transport high quality video in encoded MP4 format on the Internet through own DASH protocol.
A typical dash file stores video content in several bitrates to ensure that the video is playable even with unstable internet connection. However, these files do not contain the audio track, which is saved in different file.
DASH format is meant only for watching, not downloading, so there is currently no way how to make the downloaded fragments working as common media play in media player.
One could also look on these files are temporary files, that are generated on the client side during the playback through supported media player. They contain just fragments of the original video, not the original.
How to open dash file?
You can playback DASH video using VLC player with DASH Plugin installed.
How to convert dash file?
It seems that direct conversion from DASH is generally not possible.
Suggested software to open dash file:
Associated software actions with the dash file
Apps designed for playing dash files:
VLC media player (Microsoft Windows)
RealPlayer (Microsoft Windows)
VLC media player for Mac (Apple macOS / Mac OS X)
VLC media player for Linux (Linux/Unix)
Software apps that import dash files:
RealPlayer (Microsoft Windows)
Software apps that export dash files:
DASHEncoder (Microsoft Windows)
Dashlane profile
File type category:
Settings, options, themes or skins file
Date updated: October 2, 2018
The dash file extension is mainly related to Dashlane, a free password manager.
This type of .dash files contain saved user profiles with their settings.
Typically found in C:Users\**user**\AppData\Dashlane\profiles folder.
How to open dash file?
Cannot be opened directly by the user, only accessed by the program if placed in the proper directory.
How to convert dash file?
It doesn't seem likely that this file type can be converted to anything else.
Suggested software to open dash file:
Associated software actions with the dash file
Software apps that create dash files:
Dashlane Free Password Manager (Microsoft Windows)
Software apps that manage settings for dash files:
Dashlane Free Password Manager (Microsoft Windows)