What Is SWF?
SWF, standing for Small Web Format, is an Adobe Flash file format, used for multimedia, vector graphics, and ActionScript. It was created by Macromedia, and now it’s owned by Adobe. SWF files contain videos and vector-based animations.
How to Convert MP4 to SWF?
If you want to convert MP4 to SWF, you can try the following MP4 to SWF converters.
Option 1: MiniTool Video Converter
Fast Track:
- Install and launch MiniTool Video Converter.
- Add the MP4 file.
- Select SWF as the output format.
- Change the output folder.
- Convert and locate the SWF file.
MiniTool Video Converter is a free MP4-to-SWF converter that supports 1,000+ video and audio conversions. It also offers batch conversion for up to 5 files at once, and customizable output settings such as resolution, frame rate, and quality.
Here’s how to convert MP4 to SWF with MiniTool Video Converter.
Step 1. Install and launch MiniTool Video Converter.
Download and install MiniTool Video Converter and then launch this software.
MiniTool Video ConverterClick to Download100%Clean & Safe
Step 2. Add the MP4 file.
Click the Add Files option or click the Add or Drag file here to start conversion area to browse and upload MP4 files from your PC.

Step 3. Select SWF as the output format.
At the bottom of the interface, click the Convert all files to option, go to Video > SWF, then choose and click the desired video resolution.

Step 4. Change the output folder.
Click the Output bar and select Browse to change the output folder.

Step 5. Convert and locate the SWF file.
Click the Convert button to convert MP4 to SWF. Once done, go to the Completed tab, and click the folder icon to locate the converted video.

MiniTool Video Converter also lets you convert video for Facebook, YouTube, Instagram, and Vimeo.
Option 2: Convertio
Fast Track:
- Upload the MP4 file.
- Choose SWF.
- Click Convert.
Convertio is a professional online file converter and supports thousands of conversions between video, audio, image, document, and more. To convert MP4 to SW, firstly, you can try Convertio.
Step 1. Upload the MP4 file.
Go to the Convertio website and click Choose Files to add your file.
Step 2. Choose SWF.
Click the three dots icon, click Video, and select SWF.
Step 3. Click Convert.
Click on Convert to start the conversion.

How to Download SWF Files?
When watching a video or playing a game online, you're probably viewing an embedded Flash or SWF file. It’s easy to download them. To download Flash games and videos as SWF files, you can directly download them from a browser or use a SWF downloader.
Option 1: Download SWF files from a browser
Step 1. Open the website that contains the Flash file you want to download.
Step 2. Right-click on the site and choose View page source.
Step 3. Press Ctrl + F or Cmd +F to open the Find box, and type "swf".
Step 4. Find the link that contains "swf" like the one shown in the picture. Click this link, and it will automatically download the SWF file.

Option 2: Use a SWF Downloader
Alternatively, you can use a SWF downloader to save Flash games from website. You can try a Chrome extension, Flash Downloader. It helps you download games in SWF files easily.
Step 1. Install the Chrome extension and pin it into the Extensions bar.
Step 2. Open the website that contains the Flash game you want to download.
Step 3. Click the extension icon and click the Download all file button. Then, click OK to confirm.

Bottom Line
Converting MP4 to SWF is simple with the right tool. Whether you prefer a desktop converter like MiniTool Video Converter or an online service such as Convertio, you can create SWF files in just a few steps.
If you have any questions, you can contact us via support@minitool.com.
MP4 to SWF FAQ
2. Navigate to the folder containing the MP4 file.
3. Run the command: ffmpeg -i input.mp4 output.swf
4. Press Enter to start the conversion and wait for it to finish.
2. Choose Open With > More Apps > Open.
3. Select VLC to open the SWF file.
Or you can also go to VLC media player > Media > Open File > find the SWF file to play it.
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