Text Analysis Tools

Case Converter

Transform text among uppercase, lowercase, title, sentence, camel, Pascal, snake, and kebab case. The result updates locally as the text or style changes.

Runs in your browserNever uploaded to PagesTools.
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100% privateYour input stays on this deviceLightning fastNo upload round-tripBrowser-basedProcessing runs on this deviceFree to useNo account required

What Case Converter does

Case Converter provides eight transformations for prose, labels, identifiers, and filenames. Uppercase and lowercase retain the source spacing, while camel, Pascal, snake, and kebab modes tokenize letters and numbers before joining them in a new convention.

Title and sentence modes use straightforward casing heuristics rather than a grammar or editorial style guide. Locale-aware browser casing is used, but acronyms, proper nouns, brand capitalization, punctuation, and language-specific title rules still require review.

How to use Case Converter

  1. Choose the target case style from the selector.
  2. Paste or type the source text in the input area.
  3. Review the converted output, especially names, acronyms, punctuation, and word boundaries.
  4. Copy or download the result only after checking it in its destination context.

Important details

Identifier-style tokenization

Camel, Pascal, snake, and kebab modes extract runs of Unicode letters and numbers, lowercase them, and join them according to the chosen convention. Original separators and punctuation are not retained in those modes.

Prose casing is heuristic

Title mode capitalizes letters after non-alphanumeric boundaries. Sentence mode lowercases the input and capitalizes after the start or basic sentence punctuation; neither mode knows exceptions from a publishing style guide.

Practical uses

  • Normalize headings or labels before an editorial review.
  • Turn a phrase into camelCase, PascalCase, snake_case, or kebab-case identifiers.
  • Correct a block accidentally typed in all capitals or all lowercase.

Privacy and limitations

Case conversion runs in the browser and the text is not sent to PagesTools. Copied or downloaded output can still be retained by the clipboard, browser, or device.

Input is limited to two million characters. Conversion does not preserve every acronym or proper noun, perform transliteration, validate programming-language identifiers, or apply a named editorial style such as AP or Chicago.

Common questions

Frequently asked questions

Will Title Case preserve acronyms such as NASA?

Not reliably. Title mode first lowercases the text and then applies a simple boundary rule, so acronyms and brand spellings need manual correction.

What happens to punctuation in snake_case and kebab-case?

Those modes extract letter-and-number words and replace their boundaries with underscores or hyphens. Source punctuation and repeated separators are not copied into the identifier.

Does Sentence case understand abbreviations?

No. It uses basic punctuation boundaries rather than a language model or grammar parser. Periods in abbreviations and unusual sentence structures can therefore need correction.