TikTok silently truncates text that runs over a field’s limit, so a caption, bio, or comment can lose its ending without warning. This counter applies the real per-field limits and warns you in colour as you approach and pass each threshold.
How it works
Each TikTok field has its own maximum character count. The counter measures the length of your text and compares it to the selected field’s cap:
caption = 2,200 characters
bio = 80 characters
comment = 150 characters
username = 24 characters
Length is measured in the same code units the platform counts, so hashtags, spaces, and emojis all contribute. The display turns amber once you pass about 90 percent of the limit and red the moment you exceed it.
Tips and notes
Limits are about more than fitting — visibility matters too. Even within the 2,200-character caption cap, only the first line or two shows before the “more” tap, so lead with your hook and primary hashtags. Keep bios punchy at 80 characters and split long comments into a short thread rather than relying on a single oversized reply that TikTok will reject.