Developer Tools
Format and validate data, and convert identifiers between naming styles.
- Case Converter
Switch text between UPPER, lower, Title, Sentence, camelCase and more.
- JSON Formatter
Format, minify and validate JSON with the exact line and column of errors.
Related guides
Title Case vs sentence case: which one to use and when
What each style capitalizes, how Chicago and AP differ on small words, and why many product and web teams now prefer sentence case for headings.
How to fix the most common JSON syntax errors
Trailing commas, single quotes, comments and unquoted keys cause most invalid JSON. Here is how to spot each one from the error message.