Videos are taking over X (formerly Twitter). With the platform’s focus on video content, sharing engaging clips has never been easier. The mobile app now features a dedicated video tab, allowing users to scroll through short-form videos.
For businesses, creators, and everyday users, this shift means more opportunities to reach a wider audience in 2025. But to get the best results, you need to upload videos in the right format and optimize them for visibility.
In this article, you’ll learn not only how to post videos on X but also everything about formatting, captions, resizing, and boosting engagement. Keep reading!
How to Upload a Video on X?
Uploading videos on X is simple, but using the correct format ensures they display properly and get featured in the video tab.
Steps to post a video on X:
- Open X and tap the “+” icon to create a new post.
- Tap the media icon to upload a video from your device.
- Add a caption, hashtags, or location to your post.
- Tap Post to share your video.
Your video will appear in both the main feed and the video tab. In the main feed, captions appear above the video, while in the video tab, they overlay at the bottom.
Best Video Format for X
To ensure smooth playback and maximum reach, use the recommended video format:
- Aspect Ratio: 9:16 (Vertical for full-screen display)
- Supported Formats: MP4 and MOV
- File Size Limit: 512MB (Higher limits for premium users)
- Video Length: 140 seconds for free users (longer for premium users)
Note: Widescreen videos (16:9) are supported but appear smaller in the video tab.
Can You Edit Videos on X?
X offers basic editing features, mainly video trimming. However, to enhance engagement, you should edit your video before uploading.
Available Video Settings:
- Download Permissions – Allow or restrict viewers from downloading your video.
- Content Warnings – Mark videos containing sensitive content.
To polish your video, use an external tool before uploading. This lets you:
- ✅ Add captions (boosts watch time by 80%)
- ✅ Adjust brightness, contrast, or color
- ✅ Overlay text or graphics
- ✅ Add background music
How to Resize Videos for X?
X’s video tab is optimized for vertical videos (9:16). Resizing ensures your content looks perfect on mobile screens.
Resize your video easily online with Video2Edit.
Here’s how to do it:
- Upload your video – Drag and drop your file onto the “Resize Video” tool or click the upload button to select a file from your device.
- Choose the correct aspect ratio – Under “Resize by aspect ratio”, select 9:16.
- Start the process – Click “START” to begin resizing.
- Download your resized video – Once processing is complete, save the new video to your device.
With Video2Edit, resizing your video for X is quick and easy!
How to Add Captions to X Videos?
X does not generate automatic captions on mobile or desktop, but you can upload an SRT file to add closed captions.
Steps to add captions (Desktop Only):
- Upload your video as a post.
- Click Upload Caption File (.SRT) below the video.
- Select and upload your SRT file.
- Viewers can enable captions by tapping the CC button.
Captions will appear in white text on a black background. If you need more control over fonts or placement, edit your video beforehand with an external tool.
How to Download X Videos?
While X allows premium users to download videos, free users need alternative methods.
Downloading X Videos on the App:
- Tap the Share icon in the bottom right of the video post.
- Select Download (same Share icon).
- If you’re a premium subscriber, the video saves automatically.
For free users: You’ll see a pop-up saying that downloads are restricted. Some users also disable video downloads, preventing their content from being saved.
Alternative Solution: As a free user, you can use third-party video editing apps to download X videos.
💡 Need to Fix a Rejected Video File?
If your video gets rejected on X (Twitter) due to the wrong file format, you can easily convert it using Online Convert.
- ✅ Use the Convert to Twitter tool to preprocess your video.
- ✅ Convert your file to MP4 (Twitter’s preferred video format) or GIF for animated content.
- ✅ Ensure your video meets Twitter’s upload requirements for a smooth posting experience.
Try it now! Upload your video and get it X-ready in seconds!
In Conclusion
X is evolving into a video-first platform, making video content more important than ever. If you’re a creator, marketer, or just a casual user, knowing how to post videos on X and optimize them can increase engagement and grow your audience.
By following the right format, adding captions, and resizing your videos, you ensure they stand out in X’s video feed.