Text Tools

Case Converter

Convert text between sentence, title, upper, lower, and more.

What this tool does

Pasted a paragraph in ALL CAPS by mistake? Need to convert a headline to Title Case for AP style? The Case Converter handles all common cases — sentence, lower, UPPER, Title, aLtErNaTiNg, and inverse — in one click.

Why it matters

Case Converter saves you time and removes guesswork from everyday text tools work. Six conversion modes — and because everything runs in your browser, your data stays private and results are instant.

  • Six conversion modes
  • Live preview
  • Handles huge documents

How to use

  1. Paste your text.
  2. Click the case you want.
  3. Copy the result.

Example output

Your input text, transformed and ready to copy:

[ cleaned / formatted / counted output appears here ]

Real-world use cases

  • Editors fixing formatting
  • Students cleaning notes
  • Marketers prepping headlines

Tips & best practices

  • Title case capitalizes major words only
  • Sentence case capitalizes the first word and proper nouns
  • Use inverse case to spot-check casing errors

Frequently asked questions

Does it handle non-English text?

Yes — it uses Unicode-aware case mapping.

Will it preserve line breaks?

Yes, formatting is preserved.

Is there a length limit?

Practically no, though very large documents may slow the browser.

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