Video length, network by network
Last updated 2026-07-26
Postango makes one video and posts the same file everywhere you asked it to go. Every network has its own idea of how long that file may be, so the shortest limit among the networks you've linked is the one that matters. These numbers come from each platform's own developer documentation and were last checked on 2026-07-26.
The short version
Postango aims for 88 seconds by default.That is the longest a single video can be and still be accepted by every network we support. The limit that decides it is Facebook's, at 90 seconds — we stop at 88 because a video built to land on exactly 90 often measures a fraction over once it is encoded, and a fraction over is still over.
There is a floor too: 5 seconds. Pinterest will not take a video shorter than 4 seconds.
Every network
| Network | Shortest | Longest | Notes |
|---|---|---|---|
| 3s | 1m 30s | The tightest limit of the lot, and the reason the default is 88 seconds. | |
| X | 1s | 2m 20s | X Premium's longer videos are an app feature — posting through an API stops at 140s either way. |
| 2s | 3 min | Reddit publishes the least about this; treat it as the least certain number here. | |
| 4s | 5 min | The only network with a meaningful MINIMUM — a 3-second video is too short for a Pin. | |
| TikTok | — | 10 min | Ten minutes when posted through an API. Some accounts are allowed more; none are allowed less. |
| 3s | 15 min | Reels take up to 15 minutes through the API — far more than anything worth posting. | |
| 3s | 30 min | Thirty minutes. | |
| YouTube | — | no limit | No practical limit. But a video that is vertical AND under 3 minutes becomes a Short automatically — that is YouTube's decision, made from the file, and no setting anywhere can override it. |
Making a longer video on purpose
A proper long-form cut is a reasonable thing to want, and YouTube has no practical limit. A network that will not take the whole thing in one post gets it in parts instead: the video is split into as many posts as that network's limit needs, each one goes out on its own posting slot in order, and each is labelled “Part 2 of 3” in its title and caption. Nothing is thrown away, and nothing is quietly skipped.
So a three-minute video reaches YouTube, TikTok, Instagram and LinkedIn as one post, X as two, and Facebook as three — the same video, all of it, everywhere you post. Every part fades in and out, so a part that starts partway through reads as an episode rather than a broken upload.
You see this before it happens. The approval card names each network that needs splitting and how many posts it will take, and you can override it there: cut the video down to the limit and post the front of it once, or skip that network for this video. The calendar then shows every part, on the day it goes out, and you can move or cancel any one of them without touching the rest.
YouTube Shorts happens by itself
YouTube decides whether your upload is a Short or a normal video by looking at the file: square or taller, and under 3 minutes makes it a Short. There is no setting for this — not in Postango, not in the tools we post through, and not in YouTube's own upload API. The only thing that changes the outcome is the shape and length of the video itself.
In practice: a normal vertical Postango video posted to YouTube becomes a Short. If you want a video on the main YouTube watch page instead, it needs to be wider than square, or longer than three minutes.
When these change
Often. YouTube extended Shorts from 60 seconds to 3 minutes in late 2024, and the networks rarely announce these changes anywhere a customer would see them. We re-check the platforms' own documentation and update this page and the date at the top when something moves. If you hit a limit that disagrees with what is written here, tell us — that is the fastest way we find out.
Plan limits — how many videos a month, file sizes, how long we keep things — are on the fair use page.