SWF files are very popular for delivering videos on the web due to its small video size. Compared with SWF, MP4 is not an ideal format to share videos. You may have some MP4 videos in hand and want to convert MP4 to SWF so that you can upload them to your websites, blogs, etc. for sharing with others. This article will show you how to convert MP4 files to SWF easily and quickly.

To finish the task, you have to find a smart MP4 video to SWF video converter for help. EaseFab Video Converter could give you a big hand. It's an easy-to-use yet professional video converter that can help you convert MP4 to SWF with great quality. After the conversion, you can upload the small SWF videos to websites without any troubles. Moreover, you can also perform the following operations with the help of this powerful Video Converter: trim large video files into small video segments; adjust video brightness, contrast, saturation and change video effect as a whole. If you're using a Mac, you can turn to Video Converter for Mac, which can help you change MP4 to SWF format on Mac OS X (EI Capitan included).

Free download the MP4 to SWF Converter trial version:

How to convert MP4 to SWF for online websites

Converting MP4 to SWF with EaseFab is simple as ABC. After downloading, follow the wizard to install and run the program. Then follow the steps below to finish the conversion in a few clicks! The below guide takes Video Converter for Windows (Windows 8/8.1/10 compatible) screenshots for example.

Step 1. Add MP4 videos to the program

Click Add Files to import the MP4 videos you want to change to SWF. Or directly load them by dragging the video files to the main interface. After the videos are loaded, you can preview them, take snapshots, choose audio tracks, select subtitles, etc. as you like.

Step 2. Choose SWF as the output format

Click "Profile" box and move mouse cursor to "Online Video" category, and then choose "SWF" format as the output format.

Step 3. Customize MP4 videos (Optional)

Before converting your videos, you can click Edit to personalize and touch up your videos in clicks. Video editing functions like Trim, Crop, Effect, Watermark and Subtitles are provided. Click Edit button to enter the Video Editor Window and then:

Trim: From the Clip workspace, you can create a custom clip from a larger scene.
Crop: Here you can drag and move the rectangle on the video to set the crop area or enter the accurate crop values on Left and Top.
Watermark: Add image watermark to the MP4 video.
Effect: Set the Brightness, Contrast, Saturation, Amplifier of the video and apply different effect styles (Gray, Emboss, Negative, etc).

Step 4. Start MP4 to SWF conversion

Simply hit the "Convert" option at the bottom-right corner of this program's main interface to convert MP4 to SWF. Then, just run it in the background. This app will promptly finish the task. When it's done, there will be a pop-up note prompting you all the tasks have been finished.