Convert SWF Files to MP4 on Your Device

Convert SWF to MP4 in your browser for general playback and sharing. 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 legacy interactive projects to a workflow built for general playback and sharing
Supply MP4 when an editor, player, or delivery form will not accept SWF
Create a MP4 copy from SWF for phones, browsers, players, and upload forms

On-device encoding can work the processor harder than ordinary playback during this SWF-to-MP4 job.
Available memory can limit very large SWF conversion jobs.
Inspect the MP4 file in the exact player or editor that will receive it.

MP4 serves phones, browsers, players, and upload forms, whereas SWF commonly serves offline Flash archives and old authoring tools.
For SWF-to-MP4 delivery, plan for destination-specific internal codec rules.
After leaving SWF, the receiving app must support the streams encoded inside MP4, not only its extension.

SWF to MP4 taking too long? Try a small source first to separate a performance issue from a format issue.
MP4 converted from SWF not opening? Test a compatible player and inspect the output streams.
Check whether the receiver supports this MP4 variant: destination-specific internal codec rules.

When does SWF to MP4 conversion make sense?

It is useful when SWF media created for legacy interactive projects must enter a MP4 system designed for general playback and sharing.

Where is the SWF source processed?

The browser prepares MP4 from SWF on this device instead of sending the source to a remote conversion server.

How can I approve MP4 converted from SWF?

Test the MP4 file in the receiving app and compare duration, picture, sound and timing with the SWF source.

Quick use cases