Convert ASF Files to SWF on Your Device

Convert ASF to SWF in your browser for legacy interactive projects. The source remains on your device throughout local processing.

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 Windows-oriented distribution to a workflow built for legacy interactive projects
Supply SWF when an editor, player, or delivery form will not accept ASF
Create a SWF copy from ASF for offline Flash archives and old authoring tools

On-device encoding can work the processor harder than ordinary playback during this ASF-to-SWF job.
Large ASF inputs may take several minutes on older hardware.
Check picture, sound, and timing in SWF before removing the source.

SWF serves offline Flash archives and old authoring tools, whereas ASF commonly serves older Windows streaming and enterprise players.
For ASF-to-SWF delivery, plan for retired browser Flash support.
After leaving ASF, the receiving app must support the streams encoded inside SWF, not only its extension.

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

When does ASF to SWF conversion make sense?

It is useful when ASF media created for Windows-oriented distribution must enter a SWF system designed for legacy interactive projects.

Where is the ASF source processed?

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

How can I approve SWF converted from ASF?

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

Quick use cases