Frequently Asked Questions


How to Add the Blur Effect to Your Video with Key Frames?

Video blur effects are usually used for transitions between different scenes of clips or for creating a changing blurry effect in movies and TV videos. With MovieMator Video Editor, you can easily add partial or overall blur effects to your video and create a video that changes gradually from blur to clear with keyframing.

Step 1: Open MovieMator Video Editor and load the video/audio/image files

Double-click the program icon to open MovieMator Video Editor.

If you haven’t installed the latest version of MovieMator, download the Windows demo from here; the Mac demo from here.

blur out video

Then click “Open” at the top left corner and select the file(s). Press “Open” to load the files to MovieMator.

blur out video

Step 2: Add the target files to the timeline

Select the target file and click “Insert” button, or drag & drop the target file from your local album to append it to the track on the timeline.

blur out video

Step 3: Add the “Blur” filter

Select the video and click “Add Filter” to add the “Blur” Filter to the video, or click “Video Filter” in the left tab and click the “Add” button on the top-right of “Blur” filter.

blur out video

blur out video

Step 4: Create animated blur effect with key frames

Check “Enable Key Frames” if you want to add animated glow effect. That is to change the blurriness of the video from low to high, or from high to low.

Upon checking this option, red keyframe markers will appear at the beginning and the end of the clip.

Tips: Click “+” button to add key frame to the moment; click “-” button to remove the unwanted key frame; click to jump to the previous key frame; click to jump to the next key frame.

video blur effect

Slide to change the width and height of blurriness at each key frame. Preview the video and you’ll see the blurriness changes along with the time.

video blur effect

Please note that a key frame will be automatically added at the playhead when you adjust the blurriness of this moment with the option “Auto Add Key Frames” checked.

video blur effect

Step 5: Export your video or save the project for further editing

You could directly export videos with any format for playing on any device. Or save the project and edit them again in your spare time if you have to break off the editing process.

Export Videos:

Click “Export Video” on the main interface, then choose your desired format and adjust output settings. When everything is OK, click “Export File” to name the file and choose the destination folder.

blur out video

blur out video

Save Project:

You have 2 ways to save project for further editing. One is to click “Save Project” on the main interface, the other is to click “File” menu, then click “Save” or “Save as” to name the file and choose the destination folder. By the way, if you are used to using keyboard shortcuts, you can also press “Command + S” to save the project.

blur out video

Creative Video Tools

Free Download. 10 days Free Trial with Full Features.

video format converter for Mac online video downloader for Mac video editing software

Total Video Converter Mac

Excellent All-in-One Video Toolbox to Convert, Edit Video, Burn DVDs and more.

Total Video Downloader Mac

Download Any Video, Music and Live Streaming from YouTube, Facebook… 1000+ video sites.

MovieMator Video Editor

Full-featured video editor for creating high-quality home videos with subtitles.
Free Download. Full Features Free Download. Full Features Free Download. Full Features