PosterPoster › Character limits
Character limits for every social network (2026)
Text, hashtag and media limits Poster follows when it adapts one post for each platform. Bookmark it — or let Poster handle the limits for you.
| Platform | Text | Hashtags | Media |
|---|---|---|---|
| 2,200 characters | up to 30 | up to 10 photos or videos | |
| 63,206 characters | up to 30 | up to 10 per post | |
| Threads | 500 characters | 1 (the first hashtag) | up to 20 items |
| 3,000 characters | up to 10 | up to 20 | |
| TikTok | 2,200 characters | up to 20 | one per post |
| YouTube | 5,000 characters | up to 15 hashtags | one video, photos aren't accepted |
| 800 characters | — | 2–5 photos | |
| Bluesky | 300 characters | up to 8 | up to 4 (over 2 MB are recompressed) |
| Mastodon | your server's limit, usually 500 characters | up to 10 | up to 4 photos or one video |
| Telegram | 4,096 characters | — | 1,024 characters |
| 4,096 characters | — | 1,024 characters | |
| Discord | 2,000 characters | — | up to 10, each up to 10 MB |
| 300 characters | — | 2–20 photos | |
| Google Business Profile | 1,500 characters | — | one |
| WordPress | practically unlimited | — | up to 10 in the body |
| Mailchimp | — | — | up to 5 |
| Tumblr | 20,000 characters | up to 30 | up to 10 photos or one video |
| LINE | 5,000 characters | — | up to 4 photos or videos |
| Viber | 7,000 characters | — | 768 characters |
| Ghost | practically unlimited | — | up to 10 |
Limits as Poster applies them in October 2026. Networks change their rules; Poster follows the current ones.
Questions
What happens if my post is too long for a network?
Poster shortens it for that network only — at the end of a sentence or a word, with an ellipsis — and shows the result in the preview before publishing. Other networks get the full text.
Do hashtags count toward the limit?
Yes. Poster adds your hashtags and signature first, and drops extra hashtags where a network allows fewer, warning you about it.
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