Free SWF video converter

Convert SWF to MP4

Convert SWF videos to MP4 for free, right in your browser. Upload a .swf file, pick MP4 from the output menu and download the converted video. Everything is re-encoded locally — no uploads, no accounts, no watermarks.

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What is SWF to MP4 conversion?

Shockwave Flash (SWF) and MPEG-4 (MP4) are two popular video containers, but not every player or editor handles them all. This free converter reads your .swf file, decodes its streams and re-encodes them into a valid .mp4 file with widely supported codecs. The whole conversion runs in your browser, so your video stays private.

How it works

1Upload a .swf video file.
2Choose MP4 from the output format menu.
3Click Download — the video is re-encoded locally in your browser.
4Save the converted .mp4 file. No signup needed.

Why this tool

100% private. The conversion runs entirely in your browser. Your video is never uploaded to a server.
Free, no signup. No accounts, no watermarks, no file size limits. Convert as many videos as you like.
7 output formats. Pick AVI, FLV, MKV, MOV, MP4, WebM or WMV from the dropdown when you download.

Frequently asked questions

Is converting SWF to MP4 free?

Yes. This tool is completely free with no limits, watermarks or sign-up requirements.

Are my videos uploaded to a server?

No. The conversion happens entirely in your browser with ffmpeg.wasm, so your SWF file never leaves your device.

How do I convert SWF to MP4?

Upload a .swf file, choose MP4 from the output menu, click Download and wait for the local re-encode to finish.

What output formats can I choose?

AVI, FLV, MKV, MOV, MP4, WebM, WMV — the dropdown next to Download switches between them.

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