JSON suffix keys
ClientVersion field names in fixtures or migration drafts without hand-editing each key.
Learn more: key suffixes
Recursive rename only—does not alter string values inside the document.
Local processing
Parsing and output formatting run entirely in your browser—nothing is uploaded for this transform.
Nearby workflows on Toolcore
- JSON prefix keys — Prepend the same string to all object keys recursively—client-side rename helper. once JSON text parses on this page.
- JSON rename keys — Map old property names to new—deep rename at every object level; local only. once JSON text parses on this page.
- JSON snake_case keys — Convert object keys to snake_case at every level—local JSON key normalization. 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
- Version field names in fixtures or migration drafts without hand-editing each key.
- Paste valid JSON, then read the transformed output below.
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 prefix keys
ClientPrepend the same string to all object keys recursively—client-side rename helper.
JSON rename keys
ClientMap old property names to new—deep rename at every object level; local only.
JSON snake_case keys
ClientConvert object keys to snake_case at every level—local JSON key normalization.
JSON formatter
ClientJSON format online: pretty-print, minify, validate, escape, download .json.