Mastodon character counter
Mastodon’s post limit is 500 characters. Type below and watch the count live.
0 characters · 0 words
| Platform | Limit | Remaining | Status |
|---|---|---|---|
| Mastodon · | 500 | 500 | Fits |
| 2,200 | 2,200 | Fits | |
| TikTok | 4,000 | 4,000 | Fits |
| X (Twitter) | 280 | 280 | Fits |
| YouTube | 5,000 | 5,000 | Fits |
| Threads | 500 | 500 | Fits |
| Bluesky | 300 | 300 | Fits |
| 500 | 500 | Fits | |
| 3,000 | 3,000 | Fits | |
| 63,206 | 63,206 | Fits | |
| 40,000 | 40,000 | Fits | |
| Tumblr | 4,096 | 4,096 | Fits |
| Twitch | 500 | 500 | Fits |
| Snapchat | 80 | 80 | Fits |
| Pixelfed | 2,000 | 2,000 | Fits |
Counts by character (emoji count as one). Some platforms count links as a fixed length and may trim trailing text — treat this as a close guide, not the platform’s exact internal count.
The Mastodon limit, in context
If you cross 500 characters, Mastodon will cut your text off or block the post. Posting the same thing elsewhere? The counter above shows every other platform’s limit at the same time, and the thread splitter will break a long post into parts that fit.
Grabbing a handle to match? Check it with the Mastodon username checker.