guides
Practical answers for people who post short vertical videos: what each app accepts, what it says about itself, and how to check things on your own numbers. Each guide links to the official pages it relies on.
How to post one video to TikTok, Instagram Reels and YouTube Shorts
One vertical file can go to all three apps. What stays the same, what has to change, and the manual route step by step.
TikTok, Reels and Shorts video specs: length, size, file weight, safe zones
The official limits for TikTok, Instagram Reels and YouTube Shorts in one table, where the docs disagree, and one export that fits all three.
Best time to post short videos: how to find yours from your own data
Why no hour works for everyone, what TikTok, Instagram and YouTube say about timing, and a simple test to run on your own numbers.