The limit is 280 characters — or is it bytes?
Plenty of systems cap input by bytes, not characters. A string of 200 emoji can blow past a 280-byte limit because each emoji is several bytes in UTF-8. Counting visible characters alone hides the number that actually gets rejected.
Measure what matters
The Text Statistics tool reports characters, words, lines, sentences, and UTF-8 bytes at once. Paste your draft and see both the friendly character count and the byte count a server will enforce, so you trim the right thing.
Compare drafts precisely
When you are deciding between two phrasings, the String Similarity tool shows how close they are by Levenshtein distance — useful for seeing how much a trim actually changed the text.
When to check
- Trimming copy to fit a database column or a tweet-style limit.
- Estimating storage or payload size before sending.
- Confirming a multibyte string will not exceed a byte-based cap.