Created by Google to increase the loading speed for web pages, WebP files are 20-30% smaller than JPG images, with lossless image compression. However, you can’t directly share WebP files on Instagram, Facebook, or YouTube. One workaround is to convert WebP to MP4.
In this post, we’ve rounded up 4 great online WebP to MP4 converters. So, you can easily convert WebP to an MP4 video online on both Mac and Windows or create a compelling slideshow video with your WebP files and audio for YouTube, Instagram, etc.
Here’s What You Will Learn:
Also read, how to convert GIF to MP4.
1. FlexClip
Capable of converting unlimited WebP files in batch to an MP4 video for YouTube, Instagram, Facebook, etc., FlexClip WebP to MP4 converter and video editor is your go-to choice to convert WebP to MP4 online.
Convert WebP to MP4 videos by FlexClip online.
With FlexClip, before you convert WebP to MP4, you can select from 5 video aspect ratios (16:9,1:1,9:16,4:5 or 21:9) that fit the target social media. Then, convert WebP to an FHD MP4 video in 3 different ways.
Option 1: Directly convert WebP to MP4.

Upload your WebP files to FlexClip.

Add WebP files to the scenes.
Click the Animation tool, you can apply some classic animations to each WebP image to create a simple slideshow video.

Apply an animation to each WebP file.

Export the WebP file as an MP4 video.
Also, read the top 5 memorial video makers online.
Option 2: Make a creative collage and convert Multiple WebP to MP4.
Alternatively, you can use your WebP image files to make a creative collage before converting them to an MP4 video, which makes your videos 10x more engaging than others on YouTube or Instagram Reels, etc.

Set video aspect ratio to 9:16 for Instagram Reels and video duration.

Add a gradient background for the video background.
Hover over a WebP file > click Add as Layer. Then the image will be put on top of the background. You can drag its corners to resize and reposition it. Then click the Crop tool to crop each WebP into a circle, square, heart, star, or any shape you want.

Add the WebP overlays to the video and crop WebP into any shape you like.
With a WebP image selected, click the Motion tool. You can animate each WebP file to make it come alive, with controls over its duration and direction as well. Or you may trim each WebP’s duration to decide when it should pop up and disappear.

Animate each WebP file and set its duration on the timeline.
Click the Text tab to add call-to-action texts. Then you can customize its fonts, color, styles, and animations. Or click Audio to select from 74,000+ royalty-free music tracks and sound effects to add vibes to your video. Besides, GIPHY stickers, aesthetic illustrations, etc. are also available in the Elements tab. Feel free to explore.

Spice up your video with more video effects and ornaments.
Option 3: Use Video Templates to convert Multiple WebP to MP4.
If you don’t have design experience just like me to create the video from scratch, then all you need is to pick a designer-made and fully-customizable video template and drag and drop your Webp images to create a slideshow video and export it as an FHD MP4 video with the click of a button.





Drag and drop to replace premade images with your WebP files.
2. ASPOSE
ASPOSE is a free and easy-to-use online WebP to MP4 converter. All you need do is upload WebP files and click the convert button. Then ASPOSE will take care of the rest. You can upload up to 10 WebP files and ASPOSE will convert and merge all the WebP files into an MP4 video for you.

Convert WebP files to MP4 by ASPOSE online.
Each Webp image will last 5 secs in the converted MP4 video. One thing worth mentioning is that the WebP files to be converted by ASPOSE need to have the same dimension (either landscape or portrait), otherwise it may experience glitches. Besides, the conversion speed is slow, but the converted video has decent quality.
3. OnlineConvert
As the name suggests, OnlineConvert is a free and professional online WebP to MP4 converter. OnlineConvert offers you multiple ways to import WebP files for MP4 conversion, such as from your PC, Google Drive, Dropbox, and One Drive.

Convert WebP files to MP4 videos individually by OnlineConvert.
After you upload WebP files to OnlineConvert, you need to manually select the MP4 video format for instant format conversion of each WebP file. Apart from converting WebP to MP4, you may choose other video formats like MKV, MOV, MPEG, etc.
Then, you click the Convert button, and OnlineConvert will automatically convert all the WebP files to MP4 videos in sequence. BTW, the maximum file size is 3MB.
4. EZGIF
Though originally known as a handy online GIF maker, EZGIF nowadays also offers online users many free and helpful image and video converters, one of which is the WebP to MP4 converter.

Convert WebP to MP4 by EZGIF online.
To convert WebP to MP4 with EZGIF, you simply need to navigate to its WebP to MP4 converter and upload your WebP file and click the Convert button. However, unlike other online WebP to MP4 converters mentioned above, you can only upload one WebP file at a time to EZGIF for MP4 conversion.
You can get a preview of the converted video. If you find it too big, you can use a video resizer, crop tool, rotation tool, etc to make some adjustments. Then click the Save button to download the MP4 video to your PC.
Now, It's Your Move
Converting WebP files to an MP4 video offers you a great way to repurpose your WebP images for YouTube, Instagram, Facebook, Twitter, etc. Hopefully, you can create more great videos with existing WebP files or other clips. If you find this tutorial helpful, do share it on Facebook or Twitter with friends and leave your comments to us. Much appreciated!