SWF to MP4 Converter

Convert SWF files to MP4 online for free. Upload one file or many and download the MP4 results one by one or all together in a ZIP. No sign-up needed.

Drop your SWF files here
or click to choose SWF files · up to 95MB each

How to convert SWF to MP4

  1. Choose your files. Click Select File or drag your SWF files into the upload box. You can add many at once.
  2. Pick the settings. MP4 is already selected as the output format. The conversion starts as soon as a file is added.
  3. Download. Each file appears in the list when it is ready. Download them one by one, or all together with Download all.

SWF – Shockwave Flash

SWF is an Adobe Flash animation or video. Browsers no longer play Flash, so old SWF videos are converted to MP4.

More SWF conversions

MP4 – MPEG-4 Part 14

MP4 is the most widely supported video container. It usually holds H.264 or H.265 video with AAC audio and plays on nearly every phone, computer, TV and browser.

More MP4 conversions

Converting SWF to MP4

Frequently asked questions

How do I convert SWF to MP4?

Click Select File or drop your SWF file onto the upload box. The converted MP4 appears in the list below with a download button. You can add many files at once and download them together as a ZIP.

Is it really free?

Yes. There is no sign-up and no watermark. To keep the service available for everyone there is a 95MB limit per file and a cap on how many files one connection can process in a short period.

Are my files stored?

Your upload is used only to make the converted file. Images are processed in memory; other files are written to a private temporary folder that is deleted as soon as the conversion finishes. Nothing is kept after the result has been sent back.

Will quality drop?

For images, a little, by design: the image is re-encoded at the Quality you choose (default 75%). Audio and video are re-encoded with high-quality settings; documents keep their text and layout as far as the target format allows. Converting never restores detail that is already missing from the original.

How this works: your file is uploaded over HTTPS and converted on this server with open-source engines (libvips for images, FFmpeg for audio and video, LibreOffice and Pandoc for documents, Calibre for ebooks, Ghostscript and Inkscape for PDF and vector files). Images are processed in memory; other files use a private temporary folder that is deleted as soon as the conversion finishes.