JSON capitalize strings
ClientLight presentation cleanup on string fields—pairs with lower/uppercase tools.
Learn more: capitalizing strings
Only the first code unit is uppercased; empty strings stay empty.
Local processing
Parsing and output formatting run entirely in your browser—nothing is uploaded for this transform.
Input
?
Nearby workflows on Toolcore
- JSON lowercase strings — Lowercase every string value in JSON—keys and numbers unchanged, in your browser. once JSON text parses on this page.
- JSON uppercase strings — Uppercase every string leaf in JSON—keys unchanged, numbers and booleans untouched. once JSON text parses on this page.
- JSON trim strings — Trim leading and trailing whitespace from every string value in JSON—local cleanup. once JSON text parses on this page.
- JSON formatter — JSON format online: pretty-print, minify, validate, escape, download . once JSON text parses on this page.
Common use cases
- Light presentation cleanup on string fields—pairs with lower/uppercase tools.
Common mistakes to avoid
Invalid JSON
Fix parse errors before expecting output.
FAQ
Is data uploaded?
No—all parsing and transforms run locally.
How is this different from jq?
This page focuses on one deterministic task without a filter language.
More tools
Related utilities you can open in another tab—mostly client-side.
JSON lowercase strings
ClientLowercase every string value in JSON—keys and numbers unchanged, in your browser.
JSON uppercase strings
ClientUppercase every string leaf in JSON—keys unchanged, numbers and booleans untouched.
JSON trim strings
ClientTrim leading and trailing whitespace from every string value in JSON—local cleanup.
JSON formatter
ClientJSON format online: pretty-print, minify, validate, escape, download .json.