Count what platforms actually care about, compare one draft across networks, spot invisible characters, and split long copy without sending your text anywhere.
Draft
Compare platforms
Same text, multiple limits
Smart split
Sentence-aware splitting with numbering reserved before each cut. Edit any segment after splitting.
Choose a platform and click Split to fit. The tool prefers paragraph and sentence boundaries before using hard cuts.
Private by design: your draft is processed entirely in this browser. Platform rules change, so presets are editable and the source panel records the reference used for each built-in profile. Mastodon instances can set their own limits. Ctrl/Cmd + Enter runs Smart Split.
Platform limits & counting notes
These presets are references, not a publishing API. If a network changes its composer rules, edit the limit directly before using the result.