// PLATFORM SPECS LIBRARY

Platform Specs Library — Every Video, Image, and Caption Limit (2026)

Looking for the exact specs for your platform? Every video dimension, length cap, file size limit, and caption character limit across 25 platforms — verified 2026-05-22.

Last verified · 2026-05-29 · by Moe Ameen

Every social platform has its own quirks — different aspect ratios, different length caps, different caption truncation points. This library has a dedicated page for each spec on each platform, with the exact value, why it matters, and a cross-platform comparison table so you can plan a single render that satisfies every destination.

80 spec lookups shipped · 23 platforms covered · last verified 2026-05-22

TikTok

video-short · 5 specs covered

Video dimensions
TikTok video dimensions: 1080×1920 (9:16 aspect ratio).
Max video length
TikTok max video length: 10 min. Best-performing range: 21s–34s.
Aspect ratio
TikTok aspect ratio: 9:16 native (also supports 9:16, 1:1, 16:9).
Max file size
TikTok max file size: 287 MB per single upload.
Caption character limit
TikTok caption character limit: 2,200 characters per post.

Instagram Reels

video-short · 5 specs covered

Video dimensions
Instagram Reels video dimensions: 1080×1920 (9:16 aspect ratio).
Max video length
Instagram Reels max video length: 3 min. Best-performing range: 15s–1 min.
Aspect ratio
Instagram Reels aspect ratio: 9:16 native (also supports 9:16).
Max file size
Instagram Reels max file size: 3.9 GB per single upload.
Caption character limit
Instagram Reels caption character limit: 2,200 characters per post.

YouTube

video-long · 5 specs covered

Video dimensions
YouTube video dimensions: 1920×1080 (16:9 aspect ratio).
Max video length
YouTube max video length: 12 h. Best-performing range: 8 min–20 min.
Aspect ratio
YouTube aspect ratio: 16:9 native (also supports 16:9, 4:3).
Max file size
YouTube max file size: 256 GB per single upload.
Caption character limit
YouTube caption character limit: 5,000 characters per post.

YouTube Shorts

video-short · 5 specs covered

Video dimensions
YouTube Shorts video dimensions: 1080×1920 (9:16 aspect ratio).
Max video length
YouTube Shorts max video length: 3 min. Best-performing range: 15s–1 min.
Aspect ratio
YouTube Shorts aspect ratio: 9:16 native (also supports 9:16).
Max file size
YouTube Shorts max file size: 250 GB per single upload.
Caption character limit
YouTube Shorts caption character limit: 100 characters per post.

LinkedIn

social-text · 5 specs covered

Video dimensions
LinkedIn video dimensions: 1080×1080 (1:1 aspect ratio).
Max video length
LinkedIn max video length: 10 min. Best-performing range: 30s–3 min.
Aspect ratio
LinkedIn aspect ratio: 1:1 native (also supports 1:1, 16:9, 4:5, 9:16).
Max file size
LinkedIn max file size: 5 GB per single upload.
Caption character limit
LinkedIn caption character limit: 3,000 characters per post.

Instagram Feed

social-mixed · 4 specs covered

Video dimensions
Instagram Feed video dimensions: 1080×1080 (1:1 aspect ratio).
Max video length
Instagram Feed max video length: 1 min. Best-performing range: 15s–45s.
Max file size
Instagram Feed max file size: 100 MB per single upload.
Caption character limit
Instagram Feed caption character limit: 2,200 characters per post.

Instagram Stories

video-short · 4 specs covered

Video dimensions
Instagram Stories video dimensions: 1080×1920 (9:16 aspect ratio).
Max video length
Instagram Stories max video length: 1 min. Best-performing range: 7s–15s.
Aspect ratio
Instagram Stories aspect ratio: 9:16 native (also supports 9:16).
Max file size
Instagram Stories max file size: 100 MB per single upload.

Facebook Feed

social-mixed · 4 specs covered

Video dimensions
Facebook Feed video dimensions: 1920×1080 (16:9 aspect ratio).
Max video length
Facebook Feed max video length: 4 h. Best-performing range: 1 min–3 min.
Max file size
Facebook Feed max file size: 10 GB per single upload.
Caption character limit
Facebook Feed caption character limit: 63,206 characters per post.

Facebook Reels

video-short · 4 specs covered

Video dimensions
Facebook Reels video dimensions: 1080×1920 (9:16 aspect ratio).
Max video length
Facebook Reels max video length: 2 min. Best-performing range: 15s–1 min.
Max file size
Facebook Reels max file size: 3.9 GB per single upload.
Caption character limit
Facebook Reels caption character limit: 2,200 characters per post.

X (Twitter)

social-text · 4 specs covered

Video dimensions
X (Twitter) video dimensions: 1920×1080 (16:9 aspect ratio).
Max video length
X (Twitter) max video length: 2 min. Best-performing range: 15s–2 min.
Max file size
X (Twitter) max file size: 512 MB per single upload.
Caption character limit
X (Twitter) caption character limit: 280 characters per post.

Pinterest

social-mixed · 4 specs covered

Video dimensions
Pinterest video dimensions: 1000×1500 (2:3 aspect ratio).
Max video length
Pinterest max video length: 15 min. Best-performing range: 6s–1 min.
Max file size
Pinterest max file size: 2 GB per single upload.
Caption character limit
Pinterest caption character limit: 500 characters per post.

Threads

social-text · 4 specs covered

Video dimensions
Threads video dimensions: 1080×1080 (1:1 aspect ratio).
Max video length
Threads max video length: 5 min. Best-performing range: 15s–1 min.
Max file size
Threads max file size: 1 GB per single upload.
Caption character limit
Threads caption character limit: 500 characters per post.

Bluesky

social-text · 3 specs covered

Video dimensions
Bluesky video dimensions: 1920×1080 (16:9 aspect ratio).
Max video length
Bluesky max video length: 1 min. Best-performing range: 10s–45s.
Caption character limit
Bluesky caption character limit: 300 characters per post.

Rumble

video-long · 3 specs covered

Video dimensions
Rumble video dimensions: 1920×1080 (16:9 aspect ratio).
Max video length
Rumble max video length: 8 h. Best-performing range: 5 min–30 min.
Max file size
Rumble max file size: 15 GB per single upload.

Snapchat Spotlight

video-short · 3 specs covered

Video dimensions
Snapchat Spotlight video dimensions: 1080×1920 (9:16 aspect ratio).
Max video length
Snapchat Spotlight max video length: 3 min. Best-performing range: 10s–1 min.
Caption character limit
Snapchat Spotlight caption character limit: 160 characters per post.

LinkedIn Video (vertical)

video-short · 3 specs covered

Video dimensions
LinkedIn Video (vertical) video dimensions: 1080×1920 (9:16 aspect ratio).
Max video length
LinkedIn Video (vertical) max video length: 10 min. Best-performing range: 15s–2 min.
Max file size
LinkedIn Video (vertical) max file size: 5 GB per single upload.

Vimeo

video-long · 3 specs covered

Video dimensions
Vimeo video dimensions: 1920×1080 (16:9 aspect ratio).
Max video length
Vimeo max video length: 10 h. Best-performing range: 2 min–30 min.
Max file size
Vimeo max file size: 244.1 GB per single upload.

Zoom recording

live · 2 specs covered

Max video length
Zoom recording max video length: 24 h. Best-performing range: 30 min–1 h.
Max file size
Zoom recording max file size: 4 GB per single upload.

Google Meet recording

live · 2 specs covered

Max video length
Google Meet recording max video length: 8 h. Best-performing range: 30 min–1 h.
Max file size
Google Meet recording max file size: 4 GB per single upload.

Riverside.fm

live · 2 specs covered

Max video length
Riverside.fm max video length: 4 h. Best-performing range: 30 min–1 h.
Max file size
Riverside.fm max file size: 8 GB per single upload.

StreamYard

live · 2 specs covered

Max video length
StreamYard max video length: 4 h. Best-performing range: 30 min–1.5 h.
Max file size
StreamYard max file size: 8 GB per single upload.

Loom

video-long · 2 specs covered

Max video length
Loom max video length: 1 h. Best-performing range: 1 min–10 min.
Max file size
Loom max file size: 4 GB per single upload.

Podcast (audio file)

audio · 2 specs covered

Max video length
Podcast (audio file) max video length: 4 h. Best-performing range: 30 min–1 h.
Caption character limit
Podcast (audio file) caption character limit: 4,000 characters per post.

Frequently asked questions

What is the Platform Specs Library?

It is a lookup library with a dedicated page for each technical spec on each platform — exact video dimensions, length caps, file size limits, and caption character limits — plus a cross-platform comparison table so one render can satisfy every destination.

How many platforms does the specs library cover?

It covers 25 platforms across 80 individual spec lookups, each on its own page with the exact value and why it matters.

How current are these platform specs?

The specs were last verified 2026-05-22. Each value is checked against official platform documentation where available; entries flagged otherwise note "verify on platform docs."

Why does each platform need different specs?

Every social platform has its own quirks — different aspect ratios, different length caps, and different caption truncation points — so a render that is valid on one platform can be rejected or cropped on another.

Can I plan one render that works across every platform?

Yes. Each spec page includes a cross-platform comparison table so you can pick the dimensions and length that satisfy the strictest destination and reuse the same render everywhere.

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