Convert WMV to MKV Online

How to convert WMV to MKV

1. 1

   Upload WMV files

   Add one or more WMV files to the queue. The uploader keeps batch items separate.

2. 2

   Configure the output

   Set the available quality or format options, or keep the defaults for a first pass.

3. 3

   Run and save the result

   Run the queue and download the MKV files individually or together as a ZIP.

Windows Media Video vs Matroska video

Why convert WMV to MKV?

• Conversion is useful when the destination has a strict format requirement.
• A converted copy keeps the original file intact for comparison and future edits.
• The output can be tested in the destination workflow before the original is archived.
• A separate copy makes it easier to compare the old and new behavior.

Will quality change?

The video is re-encoded into MKV, so this is not a bit-for-bit copy. Resolution, bitrate, and codec support affect the final quality. The original source remains the best reference for comparison.

Processing and limits

Processing

Server-side

Engine

FFmpeg

Maximum size

100 MB per file on the server.

Batch support

Yes, multiple files can be queued; completed results can be downloaded as a ZIP.

Quality controls

Options can adjust output dimensions, audio bitrate.

The file is processed on the server because the conversion requires a server-side engine or a utility operation.

• Hardware and browser support is less consistent than MP4; some mobile and smart-TV apps cannot open it.
• The output is re-encoded, so keep the original source as the archive copy.
• Browser-first paths depend on local codec support; unsupported cases fall back to the server.

Platform compatibility

MKV works in limited; most browsers do not play mkv natively. Open the result in the app where it will be used, and keep the source WMV for comparison.

When not to convert

• Do not overwrite the source; keep both versions until the output has been approved.
• Avoid repeated lossy conversions when quality matters; start from the highest-quality source available.
• If the file contains sensitive data, review the processing model before uploading it to a server.

Frequently asked questions

How do I convert WMV to MKV online?

Upload a WMV file, choose the available MKV options, run the conversion, and download the result. The tool is free, supports batches, and accepts server uploads up to 100 MB.

What does Convert WMV to MKV cost?

It is free, requires no account, and adds no watermark. Server uploads are limited to 100 MB per file, and browser-first paths are limited by device memory.

Does WMV to MKV conversion lose quality?

The video is re-encoded into MKV, so this is not a bit-for-bit copy. Resolution, bitrate, and codec support affect the final quality. The original source remains the best reference for comparison.

Is my WMV file uploaded?

Yes. This conversion uses a server-side engine, so the file is uploaded over HTTPS, processed in an isolated request, and removed after the result is produced.

How do I process a batch?

Queue multiple files, run them together, and download the finished results as a ZIP. Each server file is limited to 100 MB, and large batches may take longer.

What are the limitations?

Open the downloaded MKV file in the application or database you plan to use, check the structure against the source, and keep the original until the output is approved.