A NSV file refers to the Nullsoft Streaming Video file. How to open NSV files on your computer? How to convert it to popular video formats like MP4? This post will give you clear answers. Want a free video and audio converter? MiniTool Video Converter is recommended here.

What Is NSV File?

NSV, the abbreviation of Nullsoft Streaming Video, is a digital video container format developed by Nullsoft. It is used for streaming video on the Internet. The file with the .nsv file extension is an NSV file. It is used for streaming video clips on the Internet. But Radionomy required Nullsoft in 2014, NSV is no longer supported by many players and platforms.

Also read: What Is an LRV File & How to Open and Convert It

How to Open NVS File?

How to open NSV files on your Windows and Mac? You can try Winamp, PotPlayer, VLC Media Player, etc.


Winamp is a media player for Windows and it was original developed by Nullsoft. It allows you to play multiple audio files, video files, and playlist files, such as CDA, MP3, NVS, SWF, AVI, FLV, M3U, ASX, and more. Here’s how to open NSV files with Winamp.

Step 1. Download Winamp from the official website, then install and open this program on your PC.

Step 2. At the bottom right corner of the screen, click the + (Add Files to Playlist) > Add Files to browse for the target, then select your NSV file, and click the Open.

add files to the playlist

Step 3. Then double-click the NSV file on the playlist to open it.

Note: When you can’t open NVS files in Winamp, you can click Options > Preferences, then move the Plug-ins section, click the Input to check whether you’ve installed Nullsoft NSV Decoder. If not, select the NSV plugin on the installer components and install it. Then restart Winamp. If it still doesn’t work, go to the Winamp forums to seek more help.

#VLC Media Player

As one of the most popular and comprehensive media players, VLC also can play NSV files. After opening this program, click the Media > Open File to browse for the NSV file, and tap Open to play it. Or just right-click the NSV file, tap Open with, then select the VLC Media Player.

You may also like: How to Fix VLC Won’t Play DVD – 5 Solutions


PotPlayer is also a multimedia player for Windows. It can open a variety of audio files and video files like AAC, AIFF, WMA, NVS, AMV, MTS, MPEG, and more. Also, it can open WMP images and many other files like M3U, WVX, BSF.

How to open NSV files with PotPlayer? You can directly right-click your NSV file, then tap the Open with, and select the PotPlayer from the dropdown list. With the PotPlayer open, you can click the PotPlayer at the upper right corner, then click the Open File(s) to find and open your NSV file. Alternatively, you can directly drag your NSV file to the interface of PotPlayer, and it will automatically play the NSV file.

play NSV file in PotPlayer

How to Convert NSV to MP4?

If you need to Convert NSV to MP4 or other common video formats, you can try VLC Media Player. Here’s the guide.

Step 1. Open VLC, click on Media > Convert/Save, then click + Add to upload your NSV file.

Step 2. Click the Convert/Save at the bottom right corner of the Open Media window.

Open Media window

Step 3. In the Convert window, go to Profile under Settings to choose Video – H.264 + MP3 (MP4) as output format.

Step 4. Click the Browse to find an output folder and rename the file, then click the Start to convert NSV to MP4.

Also read: Where Does VLC Save Recordings and How to Change the Save Path

What Is an MLT File & How to Convert MLT to MP4?
What Is an MLT File & How to Convert MLT to MP4?

Do you know what the Shotcut MLT file is? Can you convert an MLT file to MP4? How to convert the MLT file to MP4? Just read this post and you’ll get answers.

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Now, you must know how to open NSV files and convert NSV to MP4. Choose one way and try to open your NSV files.

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