Convert pasted text to UPPERCASE, lowercase, Title Case or Sentence case. 100% free, no sign-up — your file never leaves this browser tab.
Text Case Converter lets you convert text case entirely inside your browser, with no software to install and no account to create. Like every tool on Techsinghge Smart Tools, it's built around converting a file from one format to another so it opens correctly wherever it needs to go, and it works the same way whether you're on a laptop, a Chromebook, or a phone.
Under the hood, Text Case Converter takes pasted text and hands back the same text converted to a chosen case style. Your file is loaded directly into this page's memory using JavaScript — nothing is transmitted to a server, which means there's no upload wait, no file-size cap tied to a paid plan, and no copy of your document left sitting on someone else's storage once you're done.
Fixing text that was accidentally typed in all caps is one of the most common reasons people reach for this tool, but it works just as well for formatting a heading into proper Title Case for a document. If you need a related step before or after this one, check the related tools further down the page — every tool on this site is designed to slot into the same drag-and-drop workflow.
No installs, no accounts — just your browser doing the work.
Scroll up (or tap “Use Text Case Converter now”) to load the tool instantly — no account or install needed.
Drag and drop pasted text into the drop zone below, or click it to browse your device.
Adjust whatever settings this tool offers so the result comes out exactly how you want it — sensible defaults are already selected.
Click Run, then download the same text converted to a chosen case style straight to your device — it's generated locally and ready in seconds.
Switch instantly between UPPERCASE, lowercase, Title Case, and Sentence case.
Copy the converted text straight to your clipboard once it looks right.
Your pasted text stay on this device the whole time — nothing is uploaded, logged, or stored on a server.
Processing happens right in this browser tab, so there's no upload progress bar, no server queue, and no processing fee.
Because Text Case Converter runs locally, teams handling sensitive paperwork — legal, HR, healthcare admin, finance — can use it without the compliance questions that come with uploading documents to a third-party server. And if you only need it for a single one-off task, it's just as useful with zero setup and nothing to remember to delete afterwards.
Yes, Sentence case capitalizes the first letter after sentence-ending punctuation, not just the very first word.
No practical limit — paste anything from a single line to a full document.
Yes — completely free, with no hidden page limits, no sign-up, and no watermark added to the same text converted to a chosen case style.
No. Text Case Converter runs entirely in your browser using JavaScript libraries like pdf-lib and pdf.js. Your pasted text never leaves this device.
Yes, Text Case Converter works in any modern mobile or desktop browser — there's no app to install and no separate mobile version to download.