Free tool
TikTok video size and aspect ratio
1080 × 1920, 9:16, up to ten minutes. Drop a clip below to see whether it fits — and what Instagram and YouTube would do with the same file.
Checked against
- TikTok Video9:16 · 10m
- Instagram Reel9:16 · 3m
- YouTube Short9:16 · 3m
This reads your clip and reports — it does not re-encode it. Converting video in a browser means a very large download and a long wait, which is worse than the problem. Use your editor to change the shape, then check it here.
What the platform wants
- Resolution
- 1080 × 1920
- Aspect ratio
- 9:16
- Maximum length
- 10m
Ten minutes is the cap. A 16:9 clip still uploads — it is letterboxed into the vertical frame, with black bands top and bottom.
Questions people actually ask
Then post it
Once the clip is vertical and under ten minutes, your assistant can post it everywhere
Say what to post and when — it goes out on time to every account, without you opening a tab.
Paste this into your client
{
"mcpServers": {
"viewprinter": {
"type": "http",
"url": "https://viewprinter.tech/api/mcp"
}
}
}