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Image

  • Format: JPEG and PNG image types are the officially supported formats for image posts.
  • File Size: 8 MB maximum.
  • Aspect Ratio Limit: 10:1
  • Minimum Width: 320 (will be scaled up to the minimum if necessary)
  • Maximum Width: 1440 (will be scaled down to the maximum if necessary)
  • Height: Varies (depending on width and aspect ratio)
  • Color Space: sRGB. Images using other color spaces will have their color spaces converted to sRGB.
WebP, HEIC, HEIF, and AVIF images are converted to JPEG before posting, and the conversion preserves the image’s color rendering and writes a small XMP packet carrying only the Iptc4xmpExt:DigitalSourceType AI disclosure, when the image declares one. Threads stores the disclosure but does not render an AI label today. No other metadata is carried over: not EXIF, and nothing else from the original XMP, so a location, a creator name or a copyright line can’t be published by accident. The C2PA signature does not survive a re-encode. See Image Metadata and Content Credentials.

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Video

  • Container: MOV or MP4 (MPEG-4 Part 14), no edit lists, moov atom at the front of the file.
  • Audio Codec: AAC, 48khz sample rate maximum, 1 or 2 channels (mono or stereo).
  • Video Codec: HEVC or H264, progressive scan, closed GOP, 4:2:0 chroma subsampling.
  • Frame Rate: 23-60 FPS
  • Picture Size:
    • Maximum Columns (horizontal pixels): 1920
    • Required aspect ratio is between 0.01:1 and 10:1 but we recommend 9:16 to avoid cropping or blank space.
  • Video Bitrate: VBR, 25 Mbps maximum.
  • Audio Bitrate: 128 kbps.
  • Duration: 300 seconds (5 minutes) maximum, minimum longer than 0 seconds.
  • File Size: 1 GB maximum.
If you’re using a video creation tool and you’re having issues publishing your video, try re-encoding the video.
Self-hosting your media? Meta’s crawler must be allowed to fetch your URLs. See Meta Media Crawler Blocked to configure robots.txt.