Media upload limits for images and videos

Up to 35 photos or 1 video per post. Multiple photos publish as one photo post. Do not mix photos and video. MP4/MOV/WebM; up to 10 minutes and 4GB, subject to creator eligibility; 360–4096px each side.

One video per upload. A thumbnail is separate from the video, not a second post. Standalone image posts are unavailable through Postly. Postly ceiling 10GB; eligible channels up to 12 hours. Square or vertical videos up to 3 minutes may become Shorts.

Up to 10 images or videos per placement selection. Multiple feed images publish as one multi-image post; each video, Reel or Story file publishes separately. Linked carousel cards use a separate builder. Current Postly feed allowance: up to 10GB and 4 hours; account and endpoint restrictions apply.

Up to 10 videos per selection. Each video publishes as a separate Reel; images are not supported. Current Postly Reel allowance: 90 seconds; account and endpoint restrictions apply.

Up to 10 images or videos per selection. Each file publishes as a separate Story. Current Postly Story allowance: 60 seconds; account and endpoint restrictions apply.

Up to 20 images or videos per post. Multiple items publish as one carousel; images and videos can be mixed. Max 1GB via API, 5 mins

Up to 10 images. Multiple images publish as one Instagram carousel. Videos publish separately as Reels. Select up to 10 files per placement; each Reel video or Story file publishes separately. Postly allowance; use the lower of your plan limit and 300 MB for reliable Reel preparation. Meta’s current media reference lists 300 MB; its example collection lists 1 GB. See Content Format Guide.

Up to 10 videos per selection. Each video publishes as a separate Reel; images are not supported. Postly allowance; use the lower of your plan limit and 300 MB for reliable Reel preparation. Meta’s current media reference lists 300 MB; its example collection lists 1 GB. See Content Format Guide.

Up to 10 images or videos per selection. Each file publishes as a separate Story. Postly Stories: up to 60 seconds and 100MB.

Up to 4 images, 1 animated GIF, or 1 video per post. Thread replies are separate posts, each with its own media selection. Postly plan size allowance; X Post video guidance up to 20 minutes/8GB by default. Eligibility applies.

Up to four images, or one video, per post. Do not mix images and video. MP4, Postly duration ceiling 3 minutes; provider cap 300,000,000 bytes.

Up to 20 images, 1 video, or 1 document per post. Multiple images publish as one multi-image post. Do not mix attachment types. MP4, 3 seconds–30 minutes; up to 5GB Postly allowance.

1 image or 1 video per standard Pin. Postly allows up to 5 selected files; the separate multi-page settings are a different format; do not assume several selected files will become a standard carousel Pin. MP4/MOV/M4V, 4 seconds–15 minutes; video cover required. Pro allowance 1GB; provider constraint 2GB.

One attachment sends a single media message; two to ten supported photos/videos can form a media group. The ten-file limit is per group, not a daily allowance. MP4 multipart Bot API route: up to 50MB; lower plan allowances apply.

One image per local post. No video attachments. Local posts accept one image, not video.

Postly publishes approved template messages to selected recipients. Arbitrary image/video attachments and social-feed carousels are not provided by this publishing flow. Use the content supported by the selected template. MP4/3GP with H.264/AAC; messaging eligibility applies.

Up to ten uploaded attachments per message. Images and videos share the count and the total request-size budget. Up to 10 attachments per message; allow room for request metadata.