Facebook character limits and posting rules
Last reviewed: 29 August 2026
63,206 characters per post, but only the first 477 show before “See more”. Facebook does not thread, so a long draft stays one post.
What are Facebook's limits at a glance?
The table gives the figure Postey applies for Facebook, the field it applies to, the unit it is counted in, and whether Facebook enforces it when a post is published.
| Field | Maximum | Counted in | Enforced at publish? |
|---|---|---|---|
| post | 63,206 | Code points | Yes, at publish time |
How long can a Facebook post be?
Facebook caps a post at 63,206 characters, and Postey checks a draft against that cap before it publishes.
How does Facebook count a character?
Facebook counts code points, which is the unit Python’s len() returns on Postey’s backend, so the count you see in Postey is the count Facebook applies.
What media rules apply to a Facebook post?
Facebook applies two media rules Postey enforces before it publishes.
Shows only the first 477 characters before “See more”.
One link preview, one video, or up to 10 photos per post, never a mix.
What happens to a Facebook draft that is over the limit?
Postey refuses the draft and names the post limit it broke. Facebook does not thread, so a long draft stays one post or it does not go out.
How does Facebook compare with the other platforms?
Postey publishes the same draft to every platform below, reshaping it against each one's own limit rather than against Facebook's.
| Platform | Field | Limit | Counted in | Enforced at publish? |
|---|---|---|---|---|
| X | post | 280 characters | Weighted (link 23, emoji 2) | Yes, at publish time |
| post | 3,000 characters | Code points | Yes, at publish time | |
| Threads | post | 500 characters | Code points | Yes, at publish time |
| Bluesky | post | 300 graphemes | Graphemes | Yes, by the protocol |
| caption | 2,200 characters | Code points | Yes, at publish time | |
| TikTok | caption | 2,200 characters | Code points | Yes, at publish time |
| YouTube | description | 5,000 characters | Code points | Field maximum only |
| description | 500 characters | Code points | Field maximum only |
Read the full reference for every platform Postey publishes to.