Instagram bio
Use small caps or tiny caps as the second line under plain keywords. The 150-character bio budget still counts each tiny glyph as one character. Superscript eats the same budget and is harder to read. Keep the first line in A–Z so Instagram search can match your name. If the bio looks like a jumble on Android, switch this small text generator to small caps and paste again.
Instagram captions
A small text generator is useful for a date, a quiet credit, or a footnote under a normal paragraph. Do not set an entire caption in superscript: line height looks uneven and some Android fonts draw modifier letters at odd sizes. Paste, check the preview, then post. Leave hashtags in plain letters so people can still tap and search them.
TikTok captions
TikTok captions accept Unicode on current apps, so a copied small-caps line pastes. Handles remain alphanumeric. Use tiny text in the caption or bio, not as the unique username. If a character becomes a box, switch to small caps rather than superscript. Display names on TikTok are a better home for a short small-caps word than the @handle, which stays ASCII.
Discord
Discord display names and channel messages generally keep Unicode. Small caps work for a short nickname; superscript can look inconsistent in the member list. Server nicknames that reject the paste are applying a filter — shorten or use sans. Do not put small text in an email login. If a friend sees boxes, they are missing glyphs; ask them to view the same line on another device before you change the whole server nick.