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NSV File Extension: What Is It and How to Open with NSV File Player

by Kayla Morrison • 2021-09-18 15:02:22 • Proven solutions


If you have stumbled upon an NSV media, and are looking for an NSV file player to see the contents it has, you are at the right place. Here you will learn how to watch an NSV video, and some of the most entrusted methods to convert such a file to a more common and widely compatible format such as MP4, AVI, MOV, etc.

Part 1. What is an *.nsv file

NSV stands for Nullsoft Streaming Video, and the audio and video information that are packed in this format use the NSV file extension. As it is with MP4 or other similar media types, even NSV is a container that holds both visual and acoustic details, and therefore can be viewed only on the media players that have the compatible codecs.

As the name suggests, NSV clips are generally used for streaming due to the popularity and ease of accessibility the format comes with. However, because Radionomy bought Nullsoft in 2014, the NSV files are no longer supported by many platforms and players now.

Part 2. How to open *.nsv files with NSV converter and player

An all-in-one media converter that still supports *.nsv format is UniConverter by Wondershare. Wondershare UniConverter has its own previewer that allows you to view the contents of an imported file before you can make any changes to it, or convert it to a different extension. This previewer can be switched to the full screen mode while working with the NSV files, thus enabling you to use the program as a full-fledged NSV file player.

Furthermore, Wondershare UniConverter is capable of recognizing other 1000+ formats, and has a built-in video editor and media compressor to make your post-production and transcoding experiences smooth and flawless.

Wondershare UniConverter - Best NSV Converter

Security Verified. 5,481,347 people have downloaded it.
  • Convert NSV to PSP, MKV, AVI, AU, AMR, MP3, and other formats.
  • Download videos from popular sites like YouTube, Dailymotion, Vevo, etc.
  • 90X faster conversion speed than any conventional converters.
  • Batch video/audio compression and conversion are allowed.
  • Toolbox with additional functions like Screen Recorder, VR Converter, GIF Maker, Fixing Media Metadata, and more.
  • Supported OS: Windows 10/8/7/XP/Vista, macOS 11 Big Sur, 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7.

The following steps instruct how to use Wondershare UniConverter as an NSV file player, and exploit its conversion feature to convert such a file to a more recognizable format:

Step 1 Add an NSV source file to UniConverter.

On your Windows or Mac computer (Windows 10 here), launch Wondershare UniConverter, confirm that the Video Converter category is selected in the left pane, and click the Add Files from the right. When the Open box comes up, locate, select, and import the source NSV file from your PC to the program.

Open the Wondershare UniConverter

Step 2 Use UniConverter as an NSV file player.

After the source file is added to UniConverter, click the Play icon that appears at the center of the thumbnail in the left when you hover mouse over the enlisted file. When the Previewer window appears, switch to the full screen mode to use Wondershare UniConverter as an NSV file player.

play NSV file

play NSV file

Step 3 Choose a more common format for conversion.

After exiting the full screen window, when you are back in the normal mode, click and open the Output Format menu from the lower section of the right pane of the interface, go to the Video tab, choose your preferred output extension from the left pane, and pick a corresponding resolution preset from the right.

choose output format

Step 4 Convert and access the transcode file.

Define a destination folder in the File Location field from the bottom of the right window, and click the Convert to use Wondershare UniConverter as an NSV converter. After the transcoding process is complete, go to the Finished tab from the top, and click the Open from the right of the converted file to go to the output directory, and access the produced video from there.

start to convert NSV file by Wondershare UniConverter

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Part 3. How to convert NSV files to other formats online

If you do not have access to Wondershare UniConverter, or if it is only the one-time task when you want to convert an NSV file to a different format, you can try your hands with UniConverter’s online sibling called Wondershare Online UniConverter. This online solution is free to use, and can be accessed from any web browser regardless of the computer or the operating system you are using.

The process to use Wondershare Online UniConverter as an efficient NSV converter is explained below:

Step 1: Upload the source NSV video to Online UniConverter.

On your favorite web browser, go to the https://www.media.io/ link, click Choose Files from the center of the console box, and select and upload the source NSV file from your computer to Online UniConverter. Alternatively, you can also upload the video from your Dropbox or Google Drive account to the web portal.

load files into Online UniConverter

Step 2: Choose your preferred output format.

From the upper-right section of the console box itself, click to open the to menu, click to select the Video tab if not already there, and from the available formats, choose your preferred one to convert the NSV file extension to. After this, you can safely click the CONVERT button to use Online UniConverter as an NSV converter via the web browser.

choose output format as PSP

Step 3: Obtain the transcode file.

After the conversion process is complete, click the DOWNLOAD button that appears next, and save the converted file to your preferred location on your PC.

convert NSV file by Online UniConverter


Because the NSV files are no longer supported by many media players and streaming platforms nowadays, you can exploit the previewer feature of Wondershare UniConverter to use the application as an effective NSV file player on your Windows or Mac computer. On the other hand, if it is only the conversion that you want to perform, Wondershare Online UniConverter would be the best web-based solution to work with.

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Kayla Morrison

Kayla Morrison

staff Editor

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