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Case Converter

Convert text into 12 case formats, including identifiers and inverse case. Each format follows explicit mechanical rules; preview the output before using it in code or headings.

Parameters

Your text stays in your browser — nothing is uploaded.

Results

Converted Text
Example input and result
Hello World
HELLO WORLD
Case rules are mechanical. Identifier word splitting uses ASCII lower-to-upper boundaries and separators; acronyms and locale-specific title rules may need editing.
Why Choose Case Converter
Convert text into 12 case formats, including identifiers and inverse case. Each format follows explicit mechanical rules; preview the output before using it in code or headings.
How to Use
  1. 1Paste the text to convert.
  2. 2Select the target case format.
  3. 3Review and copy the converted text, adjusting acronyms if needed.
Frequently Asked Questions (FAQ)
What is inverse case?
Inverse case swaps uppercase and lowercase letters individually. Hello World becomes hELLO wORLD. It does not turn text into camelCase or capitalize each word.
How are identifier words found?
Spaces and separators such as underscores, hyphens and dots split words, as do ASCII lower-to-upper boundaries. Acronyms such as XMLParser may need manual adjustment.
Is Title Case an editorial style guide?
No. It capitalizes the first character of each matched word and lowercases the rest. It does not apply AP, Chicago or language-specific rules for articles and prepositions.