Character limit
The maximum text length allowed in a post or field, with counting rules that depend on the platform and format.
A character limit is the maximum length a platform allows for a single post. Limits can differ by post format, subscription tier, and publishing method, so check the current rules for the destination. The details matter: links, mentions, and emoji can count differently than plain text depending on the platform.
Limits shape writing more than they constrain it. The discipline of fitting an idea into one post forces a sharper claim, and longer arguments move into threads, where each post has to survive on its own while advancing the sequence.
Related terms and guides
Explore the glossary
Build your understanding of newsletters, social media, and audience growth, one topic at a time.