Text case converter online free
Stuck Caps Lock, headlines and lists — four case modes in one click.
Caps Lock is no longer a problem
How to change case in 4 steps
A paragraph, list or headlines — any length.
UPPERCASE, lowercase, Sentence case, Title Case.
Nothing is sent to a server.
And paste back into your document.
Part of the Zerocoder platform
One tool of a platform where AI generates websites, images, video, text and documents — under one subscription.
Text typed with Caps Lock on doesn't get retyped — it gets its case changed. Four modes cover every scenario: UPPERCASE for emphasis, lowercase for a reset, Sentence case for prose, Title Case for headlines and names. Conversion is instant and local: the text never leaves the browser. While you're here, check text length and clean lists of duplicate lines. Texts from scratch are written by AI in the Zerocoder Studio.
The classic: a document typed in caps
Lawyers and accountants know it: a contract arrives with NAMES AND EVERY DETAIL IN CAPS. Retyping costs an hour; Sentence case solves it in a second, leaving only abbreviations and proper names to touch up. The reverse — emphasising a line — is what UPPERCASE is for.
Title Case vs Sentence case in headlines
Title Case Capitalises Every Word — the convention for book, song and brand names. Sentence case capitalises only the first letter — the cleaner choice for UI copy and modern editorial style. Mixing both in one document reads as sloppiness; the tool normalises everything in one pass.
Case in data: why spreadsheets care
Customer and product lists merged from different sources come mottled: “smith”, “SMITH”, “Smith”. To filters and lookups those are three different values. Run the column through one mode and comparisons work. Duplicates after normalisation are removed by the neighbouring tool.
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FAQ
Which modes are there?
UPPERCASE, lowercase, Sentence case and Title Case.
Are abbreviations preserved?
Modes apply to all text: abbreviations like “NASA” after Sentence case need a manual touch-up.
Does it work with any language?
Yes, all modes work with any alphabet.
Is there a length limit?
Practically none — hundreds of thousands of characters convert instantly.
Is text sent anywhere?
No, conversion runs in the browser.
Do I need an account?
No: the tool is fully free and unlimited.
Why didn't Sentence case fix a name?
It capitalises after periods; names mid-sentence need manual fixing.
Can it do aLtErNaTiNg case?
No such mode — it doesn't come up in real work.
What else does Zerocoder do?
AI text generation and editing, courses, jobs — the case tool is one small utility.