Social Platform Requirements
Twitter
General Guidelines
Max Character Length: For regular accounts the character limit is 280 characters. For Premium accounts the character limit is 25,000 characters.
Media Attachments per Tweet: You can attach up to 4 photos, 1 animated GIF, or 1 video in a single Tweet.
If you see a 429 error from Twitter, you are posting too much. Twitter has a per user limit of 100 requests per 24 hours.
Image Specifications
Supported Formats: JPG, PNG, GIF, WEBP
File Size Limit: Images must be ≤ 5 MB; animated GIFs must be ≤ 15 MB.
Animated GIF Recommendations:
Resolution: ≤ 1280x1080 pixels
Frame Count: ≤ 350 frames
Total Pixels: Width × Height × Number of Frames ≤ 300 million pixels
File Size: ≤ 15 MB
For larger GIFs, use the chunked upload endpoint with
media_category=tweet_gifto enable asynchronous processing.
Video Specifications
Recommended Settings:
Codec: H.264 High Profile
Frame Rates: 30 FPS or 60 FPS
Resolutions:
1280x720 (landscape)
720x1280 (portrait)
720x720 (square)
Subscribed users can upload 1080p videos and receive 1080p playback; unsubscribed users are limited to 720p.
Bitrates:
Video: Minimum 5,000 kbps
Audio: Minimum 128 kbps
Audio Codec: AAC Low Complexity (LC)
Aspect Ratios: 16:9 (landscape or portrait), 1:1 (square)
Advanced Constraints:
Frame Rate: ≤ 60 FPS
Dimensions: Between 32x32 and 1280x1024 pixels
File Size: ≤ 512 MB
Duration: Between 0.5 seconds and 140 seconds
Aspect Ratio Range: Between 1:3 and 3:1
Pixel Aspect Ratio: 1:1
Pixel Format: YUV 4:2:0
Audio Channels: Mono or Stereo; 5.1 or greater is not supported
GOP Structure: Closed GOP required; open GOP is not supported
Scan Type: Progressive scan only; interlaced video is not supported
Instagram
General Guidelines
Caption Length: Instagram captions are limited to 2200 characters.
Image Specifications
Format: JPEG, PNG
File Size: Maximum of 8 MB
Aspect Ratio: Must be within a 4:5 to 1.91:1 range
Minimum Width: 320 pixels (images will be scaled up to this width if smaller)
Maximum Width: 1440 pixels (images will be scaled down to this width if larger)
For optimal display, it's recommended to use square images with a 1:1 aspect ratio. This ensures that your content utilizes the maximum area on the platform.
Video Specifications
Format: MP4 and MOV.
File Size: Maximum of 100 MB
Duration:
Minimum: 3 seconds
Maximum:
Reel: 15 minutes
Story: 60 seconds
Aspect Ratio: Must be within a 4:5 to 1.91:1 range
Minimum Width: 320 pixels
Maximum Width: 1440 pixels
Similar to images, using a 1:1 aspect ratio for videos is recommended to maximize on-screen display area.
Carousel Specifications
Composition: All images or all videos.
Number of Items: 2 to 20.
Video Aspect Ratio: 1:1 (square), 4:5 (portrait), and 1.91:1 (landscape)
Each item within the carousel must adhere to the respective image and video specifications outlined above.
LinkedIn
General Guidelines
Character Limit per Post: LinkedIn allows up to 3000 characters per post.
Image Specifications
Supported Formats: JPG, GIF, and PNG.
File Size Limit: Images must be ≤ 5 MB.
Pixel Count: Images should have less than 36,152,320 pixels.
Animated GIF Constraints:
Frame Limit: GIFs support up to 250 frames.
For optimal display, it's recommended to use images with a 1.91:1 aspect ratio, such as 1200 x 627 pixels. This ensures that your content utilizes the maximum area on the platform.
Video Specifications
Supported Format: MP4.
File Size: Between 75 KB and 500 MB.
Duration: Between 3 seconds and 30 minutes.
Resolution: Minimum of 256 x 144 pixels; maximum of 4096 x 2304 pixels.
Aspect Ratios:
Landscape: 16:9
Portrait: 9:16
Square: 1:1
Frame Rate: Up to 60 frames per second (fps).
Bitrate: Up to 30 Mbps.
For optimal display across devices, consider using a square (1:1) aspect ratio with a resolution of 1080 x 1080 pixels. This format adapts well to both mobile and desktop environments.
Facebook
General Guidelines
Graph API Endpoints: Max character limit is 63,206 characters
Image Specifications
Supported Formats: JPEG, PNG, GIF, BMP, and TIFF.
File Size Limit: Up to 30 MB.
Recommended Resolution: At least 1080 pixels wide.
Aspect Ratios:
Square: 1:1
Portrait: 4:5
Landscape: 1.91:1
Additional Recommendations:
Use images with minimal text overlay to avoid reduced delivery.
Ensure images are clear and not pixelated or blurry.
For PNG files, keep the file size below 1 MB to prevent pixelation.
Video Specifications
Supported Formats: MP4 and MOV.
File Size Limit: Up to 4 GB.
Duration: Between 3 seconds and 240 minutes.
Resolution: Minimum of 256 x 144 pixels; maximum of 4096 x 2304 pixels.
Aspect Ratios:
Landscape: 16:9
Portrait: 9:16
Square: 1:1
Frame Rate: Up to 30 frames per second.
Bitrate: Up to 30 Mbps.
Additional Recommendations:
Use high-quality audio and include captions to enhance accessibility.
For videos with text overlays, ensure the text is within the safe zone to prevent cropping, especially on mobile devices.
Shorter videos (15 seconds or less) are more likely to capture viewer attention.
TikTok
Description Specifications
Character Limit: The character limit is 2200 characters.
Video Specifications
Supported Formats: MP4 (recommended), WebM, and MOV.
Codecs: H.264 (recommended), H.265, VP8, VP9.
Frame Rate: Minimum of 23 FPS; maximum of 60 FPS.
Resolution: Minimum of 360 pixels for both height and width; maximum of 4096 pixels for both height and width.
Duration: Up to 10 minutes.
File Size: Maximum of 4 GB.
Image Specifications
Supported Formats: WebP, JPEG.
Resolution: Maximum of 1080 pixels.
File Size: Maximum of 20 MB per image.
Pinterest
Description Specifications
Description Character Limit: 800 characters.
Title Character Limit: 100 characters.
Alt Text Character Limit: 800 characters.
URL Link Character Limit: 2048 characters.
Image Specifications
Supported Formats: PNG, JPEG.
File Size: Maximum of 20 MB per image.
Threads
Image Specifications
Supported Formats: JPEG and PNG
File Size: Maximum of 8 MB
Resolution:
Minimum Width: 320 pixels (scaled up if smaller)
Maximum Width: 1440 pixels (scaled down if larger)
Height: Varies depending on width and aspect ratio
Aspect Ratio: Between 10:1 and 1:10
Color Space: sRGB (Images in other color spaces will be converted to sRGB)
Video Specifications
Supported Formats:
Container: MP4 (MPEG-4 Part 14) or MOV
Video Codec: H.264 or HEVC (progressive scan, closed GOP, 4:2:0 chroma subsampling)
Audio Codec: AAC, maximum 48 kHz sample rate, mono or stereo
Resolution:
Maximum Width: 1920 pixels
Aspect Ratio: Between 0.01:1 and 10:1 (9:16 recommended to avoid cropping or blank space)
Frame Rate: Between 23 and 60 FPS
Bitrates:
Video Bitrate: Variable bitrate (VBR), up to 100 Mbps
Audio Bitrate: Maximum 128 kbps
Duration: Between 1 second and 5 minutes (300 seconds)
File Size: Maximum of 1 GB
Text and Carousel Post Limitations
Text Posts: Limited to 500 characters per post
Carousel Posts:
Minimum Items: 2 images/videos
Maximum Items: 20 images/videos
Bluesky
Post Character Limit: 300 characters per post
Image Guidelines:
Up to 4 images
Single and multiple image posts:
Square: 1080 x 1080 pixels
Landscape: 1200 x 627 pixels
Portrait: 627 x 1200 pixels
YouTube
Video Specifications
Supported Formats: YouTube accepts various video formats, including MP4, MOV, AVI, WMV, FLV, 3GPP, and WebM.
Recommended Format: MP4 with H.264 video codec and AAC-LC audio codec is recommended for optimal quality and file size.
Resolution and Aspect Ratio:
Standard aspect ratio: 16:9.
Recommended resolutions:
2160p (4K): 3840x2160
1440p (2K): 2560x1440
1080p (Full HD): 1920x1080
720p (HD): 1280x720
480p (SD): 854x480
360p: 640x360
240p: 426x240
Frame Rate: Content should be encoded and uploaded in the same frame rate it was recorded. Common frame rates include 24, 25, 30, 48, 50, and 60 frames per second.
Bitrate: Choose H.264 encoding for the best balance of quality and file size. Keep the bitrate between 8 Mbps (1080p) and 35 Mbps (4K).
File Size and Duration: Verified accounts can upload videos up to 256 GB or 12 hours, whichever is less.
Image Specifications
Channel Art (Banner Image):
Recommended dimensions: 2560x1440 pixels.
Safe area for text and logos: 1546x423 pixels (centered).
Accepted file types: JPG, GIF, BMP, or PNG.
Profile Picture:
Recommended dimensions: 800x800 pixels.
Aspect ratio: 1:1.
Accepted file types: JPG, PNG, GIF, BMP.
Video Thumbnails:
Recommended dimensions: 1280x720 pixels.
Minimum width: 640 pixels.
Aspect ratio: 16:9.
Accepted file types: JPG, GIF, BMP, or PNG.
Text Specifications
Video Titles:
Maximum length: 100 characters.
Ensure titles are concise, descriptive, and include relevant keywords.
Video Descriptions:
Maximum length: 5,000 characters.
Provide detailed information about the video content, including relevant links and timestamps.
Tags:
Use relevant keywords to improve searchability.
Avoid using excessive or misleading tags.
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