Resize 3GP File Online
Change video size for Instagram, YouTube, Facebook, Twitter post and other social media

Crop Video
You can fit the whole video into the chosen frame and change the background color, or fill the frame in order not to leave the blank space.
Format Conversion
Change the video format to one of the formats supported by the selected social media, or use custom values and select from more than 20 formats.
Make Vertical Video Horizontal
Change a video from vertical to horizontal and make the background blurry. Select the necessary preset, click the "paint bucket" icon, and then select the "blur" option.
3GP video resizer
What is a 3GP file? It’s a quite obsolete video container, developed for older smartphones. Nowadays, it’s much less popular. As we can easily derive from the very name "3GP", this format was created for the third generation technology, while now we have the fifth, and the sixth is coming inevitably.
Luckily, you can convert 3GP to MP4 and make it compatible with most online platforms and social media. To fully meet the resource specifications, it is also necessary to resize a video, as each site accepts exact file orientations and aspect ratios.
Clideo’s video resizer works with a wide range of input formats, including .3GP. The service has about 50 presets, and with their help, you can resize a video for Instagram, Pinterest, Facebook, or other social media in two clicks.
The tool works online and is fully compatible with all operating systems. You can run it on Android, Windows, macOS, iOS, or Linux. The interface is user-friendly, and the functionality is easy to master. Let’s take a closer look at how to resize a video in three short steps.
Frequently Asked Questions
FAQ
In the custom size area, enable aspect ratio locking to keep the layout proportional.
Use custom resize and pick a landscape dimension — letterboxing or cropping can be applied.
Choose standard Instagram sizes (like 9:16 or 1:1) or manually enter dimensions that match their guidelines.
Yes, multiple formats are accepted, including 3GP, MP4, MOV, AVI, and others.
Check the preview window to make sure the changes are correct before download.
Yes, it's compatible with mobile devices and works well on mobile browsers.
Yes, use the same tool for resizing photos and videos.
Cropping emphasizes a specific section, while resizing maintains all content and alters scale.
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