Character Limits for Every Social Platform (2026)
Guide · Social Media
Every platform enforces a different character limit, and going over it usually means a caption gets cut off with a "see more" link rather than an outright error — which quietly kills engagement if your key point or call to action was past the cutoff.
Post and caption limits
| Platform | Limit | Practical "safe" length |
|---|---|---|
| X (Twitter) | 280 characters | Under 280, or 25,000 for Premium accounts |
| Instagram caption | 2,200 characters | First ~125 characters show before "more" |
| Facebook post | 63,206 characters | First ~477 characters show before truncation |
| LinkedIn post | 3,000 characters | First ~140 characters show before "see more" |
| TikTok caption | 2,200 characters | First ~150 shown in feed view |
| YouTube title | 100 characters | Under 60 to avoid truncation in search results |
Bio and profile field limits
| Platform | Bio limit |
|---|---|
| 150 characters | |
| X (Twitter) | 160 characters |
| TikTok | 80 characters |
| LinkedIn headline | 220 characters |
Platforms adjust these limits periodically — treat this as a current reference point and double-check anything mission-critical against the platform's own help documentation.
Why the "shown before truncation" number matters more than the hard limit
The hard character limit determines whether your post gets rejected outright. The much shorter "shown before truncation" number determines whether your actual message gets seen without a click. Front-loading your key point, question, or call to action into that first visible chunk matters more than technically staying under the platform's absolute maximum.
Checking your draft before posting
Paste your caption or bio into the Text Counter to see the live character count against these limits before you publish, rather than finding out it got cut off after the fact.