Upper Case Converter

Convert lower case to upper case without losing line breaks. Locale options cover German sharp S and Turkish dotted I — still fully offline.

An upper case converter turns every letter into capitals. That is lower case to upper case: headings that must shout, legal clauses, labels, and the occasional acronym block.

This is not the same as a capital case converter or proper case converter. Those names usually mean Capitalized Case (Start Case), where each word starts with a capital and the rest is lowercase. UPPER CASE is all caps.

Lower case to upper case converter

Paste mixed or lowercase text. Locale-aware uppercase maps Turkish i → İ and German ß → ẞ. Numbers, emoji, and line breaks stay put.

For headings that should not scream, prefer Title Case or Capitalized Case. To undo this pass, use the lower case converter and convert uppercase to lowercase again.

Last reviewed 2026-09-10.

FAQ

Questions, answered

Does uppercase keep my line breaks?

Yes. Only letters change case. Layout, numbers, and symbols are left alone.

What happens to ß?

With the German locale, ß becomes ẞ (capital sharp S) instead of SS, which matches modern German orthography.

Is this a capital case converter?

All-caps is UPPER CASE. Capital case, cap case, and proper case usually mean Capitalized Case (each word starts with a capital). Use this page for shouting labels; use Capitalized Case for names.

Can I go back?

Use Undo in the toolbar, or switch to the lower case converter to convert uppercase to lowercase. Your original paste stays in the source field.

Lower case to upper case converter

Questions, answered

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