Threads character limits and image sizes
This page lists every Threads text limit and upload size tracked by the tool, including the point where Threads truncates a post in the feed. Counts follow how Threads itself measures text, not raw string length.
Threads character limits
| Field | Limit | Visible in feed |
|---|---|---|
| Post | 500 | — |
| Bio | 150 | — |
“Visible in feed” is roughly where the platform collapses the rest behind a “more” link. It is the practical limit for anything you need read.
Threads image and video sizes
| Placement | Dimensions | Ratio | Type |
|---|---|---|---|
| Feed portrait | 1,080 × 1,350 | 4:5 | Image |
| Feed square | 1,080 × 1,080 | 1:1 | Image |
Limits for other networks
Limits are checked against public platform documentation and change occasionally — verify anything business-critical. Limits last reviewed .