You can add images and videos to your posts, but the supported formats vary depending on the social media platform.
Update date: June 6, 2025
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This page provides an overview of the file formats and size limitations for uploading media using SocialDog across various social networks. Please note that even if images and videos are created in the specified formats and sizes, there is a possibility that these may be converted or compressed by the social networks, which could lead to a reduction in image quality.
X (Twitter)
Images
- Format: JPG, PNG, GIF, WebP, BMP
- WebP images larger than 5MB will be converted to JPEG format when compressed on SocialDog.
- BMP images will be converted to JPEG format.
- Size: Up to 5MB (per image)
- If your browser supports image compression, images larger than this size will be automatically compressed to a postable size.
Animated GIFs
- Format: GIF
- Size: Up to 15MB
- Resolution: Up to 1280x1080
- Frame count: Up to 350
- Pixel count (height × width × frame count): Up to 300 million
Videos
The maximum video size limit differs between "Post (Legacy)" and "Crosspost".
- Post (Legacy)
- Size: Up to 50MB
- Crosspost
- Size: Up to 512MB
For larger video files, please use "Crosspost". For more details about the differences between "Post (Legacy)" and "Crosspost", please check here.
The recommended video specifications announced by X (Twitter) are as follows:
Recommended:
- Recommended Video Codec: H264 High Profile
- Recommended Frame Rates: 30 FPS, 60 FPS
- Recommended Video Resolution: 1280x720 (landscape), 720x1280 (portrait), 720x720 (square)
- Recommended Minimum Video Bitrate: 5,000 kbps
- Recommended Minimum Audio Bitrate: 128 kbps
- Recommended Audio Codec: AAC LC
- Recommended Aspect Ratio: 16:9 (landscape or portrait), 1:1 (square)
Advanced:
- Frame rate must be 60 FPS or less
- Dimensions must be between 32x32 and 1280x1024
- File size must not exceed 15MB
- Duration must be between 0.5 seconds and 140 seconds
- Aspect ratio must be between 1:3 and 3:1
- Must have 1:1 pixel aspect ratio
- Only YUV 4:2:0 pixel format is supported
- Audio must be AAC with Low Complexity profile. High-Efficiency AAC is not supported
- Audio must be mono or stereo, not 5.1 or greater
- Must not have open GOP
- Must use progressive scan
Images
- Format: JPEG, PNG, WebP, BMP
- Non-JPEG images will be converted to JPEG format.
- Size: Up to 8MB
- Images exceeding this size cannot be uploaded. Please note that SocialDog does not perform any compression on images intended for posting on Instagram.
- Aspect ratio: Within the range of 4:5 to 1.91:1
Video
- Format: MP4, MOV, QuickTime
- Size: Up to 100MB
- Video length: Maximum 60 seconds, minimum 3 seconds
- Aspect ratio: Within the range of 4:5 to 16:9
- Audio: 1 or 2 channels (mono or stereo)
Images
- Format: JPEG, PNG, WebP, BMP, TIFF
- WebP images will be converted to JPEG format.
- BMP images larger than 4MB will be converted to JPEG format when compressed on SocialDog.
- Size: Up to 4MB (Up to 1MB for PNG)
- If your browser supports image compression, images larger than this size will be automatically compressed to a postable size. However, TIFF images cannot be compressed.
Video
- Size: Up to 100MB
- Format: MP4, MOV, QuickTime, GIF
- Aspect ratio: Within the range of 9:16 to 16:9
When Image Upload Errors Occur
Images may be unable to upload if they do not meet the specified format and size requirements.
If an error occurs, please modify the image to meet the format and size requirements for each social network and try again.
Possible Causes
- The image file size is too large.
- The image format cannot be loaded in the browser.
- The image file is corrupted.