NSV Converter

Convert Nullsoft streaming videos (NSV) online for free

Select File
Drop or upload your .NSV file

Online File Converter

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How to convert your NSV file

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

Convert NSV to another file type

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

NSV to MP4
NSV to AVI
NSV to MOV
NSV to WMV
NSV to FLV
NSV to WEBM
NSV to MKV
NSV to M4V
NSV to 3GP
NSV to OGV
NSV to ASF
NSV to AMR

Convert a file to NSV

To convert other file formats to the "Legacy Streaming Container" file type, you need software like Winamp or a similar tool.

About NSV files

The .NSV (Nullsoft Streaming Video) format is a legacy media container originally developed by Nullsoft to stream TV-like content via Winamp. While revolutionary in the early 2000s for enabling low-bitrate streaming over SHOUTcast servers, it is now effectively obsolete and widely unsupported.

Files with the .NSV extension typically contain video streams compressed with older codecs like VP3, VP5, or VP6, paired with MP3 or AAC audio. Because the format was designed for erratic internet connections, it supports variable frame rates and header stripping, which creates significant friction today. Most modern video editors (like Adobe Premiere Pro) and standard media players cannot open these files. Furthermore, you cannot upload an .NSV directly to YouTube, share it on social media, or view it in a web browser without plugins.

Best Conversion Targets:

For Web & Mobile: Convert to MP4 (H.264/AAC). This fixes compatibility issues, making the video playable on iPhones, Androids, and modern browsers.
For Archiving: Convert to MKV. This container can hold the video data efficiently, though you will likely still need to transcode the video stream to a modern standard like H.264 to ensure future playback.
For Editing: Convert to MOV or uncompressed AVI to turn the variable frame rate stream into a constant frame rate file easier to manipulate in editing software.

Use convert.guru to handle these legacy streams - just drag and drop to verify the content and convert it to a usable format.

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

Users also converted SPC, CMF, EQF and MSV files.

FAQ

If you want to convert NSV file to MSV, you can use Winamp or similar software from the "Streaming Video Container" category. In the File menu, look for Save As… or Export….

To convert MTS, MOV, RMVB, DIVX, RM, H264, TS, WMV, VOB, MP4, XVID or AVI files to NSV, try Winamp or another comparable tool in the "Streaming Video Container" category.

The NSV 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 NSV converter.