ISMV Converter

Convert Smooth Streaming videos (ISMV) online for free


Drop or upload your .ISMV file

How to convert your ISMV file

  1. Click the "Select File" button above, and choose your ISMV file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.

Convert ISMV to another file type

The converter easily converts your ISMV videos to various formats - free and online. No Microsoft IIS or or other Video software needed.

  • ISMV to MP4
  • ISMV to AVI
  • ISMV to MOV
  • ISMV to WMV
  • ISMV to FLV
  • ISMV to WEBM
  • ISMV to MKV
  • ISMV to M4V
  • ISMV to 3GP
  • ISMV to OGV
  • ISMV to ASF
  • ISMV to RM

Convert a file to ISMV

The converter also works in reverse, so you can convert other "Fragmented Streaming Video" formats to ISMV without using software like Microsoft IIS or a similar tool.

  • MTS to ISMV
  • MOV to ISMV
  • DIVX to ISMV
  • RM to ISMV
  • H264 to ISMV
  • WMV to ISMV
  • VOB to ISMV
  • MP4 to ISMV
  • XVID to ISMV
  • AVI to ISMV
  • LVF to ISMV
  • TDT to ISMV

About ISMV files

The .ISMV file is a fragmented MP4 video container designed specifically for Microsoft IIS Smooth Streaming. Instead of holding a single, continuous video stream, the file divides the video into tiny fragments. This allows an IIS server to dynamically adjust the video bitrate on the fly based on the viewer's internet speed. Historically, these files were generated using Microsoft Expression Encoder and played using the now-deprecated Microsoft Silverlight browser plugin.

You need to convert this file because .ISMV is highly proprietary and effectively obsolete for standalone use. The fragmented structure means standard local media players and mobile devices cannot play the file properly. The lack of standard file indexing breaks basic playback features like seeking or fast-forwarding. You are effectively locked out of your video data unless it is hosted on a specialized server environment.

To make the video usable, convert it to a modern format. For general local playback and mobile device compatibility, convert to standard MP4. For web distribution, convert to WEBM. If you want to archive the video without touching the underlying codecs, remux it to MKV. Drag and drop your file here to analyze and convert it - free, online, and without installing software.

Use Convert.Guru to open and convert your ISMV file.

Users also converted MP4 files.


FAQ

If you want to convert ISMV file to , you can use Microsoft IIS or similar software from the "Adaptive Bitrate Video Streaming" category. In the File menu, look for Save As… or Export….

To convert RMVB or TS files to ISMV, try Microsoft IIS or another comparable tool in the "Adaptive Bitrate Video Streaming" category.



The ISMV Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ISMV converter.