Convert SWF Files to MKV on Your Device

Make a MKV copy of SWF in your browser for multi-platform libraries. The SWF source remains on this device while the browser prepares MKV.

Drop files here or browse (MAX 500 MB)

Max 500 MB per file

Preview (optional)

When your browser supports it, your video appears here. If preview does not load, you can still convert your file normally.

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File name

Adapt legacy interactive projects to a workflow built for multi-platform libraries
Supply MKV when an editor, player, or delivery form will not accept SWF
Create a MKV copy from SWF for flexible media libraries and archives

Local conversion competes with other open apps for processor time during this SWF-to-MKV job.
Large SWF inputs may take several minutes on older hardware.
Check picture, sound, and timing in MKV before removing the source.

MKV serves flexible media libraries and archives, whereas SWF commonly serves offline Flash archives and old authoring tools.
For SWF-to-MKV delivery, plan for rejection by some TVs and upload forms.
After leaving SWF, the receiving app must support the streams encoded inside MKV, not only its extension.

SWF to MKV taking too long? Check available memory; long, high-resolution sources need substantially more.
MKV converted from SWF not opening? Test a compatible player and inspect the output streams.
Use the receiving app’s documented MKV profile when generic playback succeeds but import fails.

When does SWF to MKV conversion make sense?

It is useful when SWF media created for legacy interactive projects must enter a MKV system designed for multi-platform libraries.

Where is the SWF source processed?

The browser prepares MKV from SWF on this device instead of sending the source to a remote conversion server.

How can I approve MKV converted from SWF?

Test the MKV file in the receiving app and compare duration, picture, sound and timing with the SWF source.

Quick use cases