JSON null to empty string
ClientAdapt null-friendly APIs to serializers that require empty strings instead of null.
Learn more: null to empty string
Only null becomes ""—missing keys are untouched.
Local processing
Parsing and output formatting run entirely in your browser—nothing is uploaded for this transform.
Input
?
Nearby workflows on Toolcore
- JSON empty string to null — Convert empty string values to JSON null recursively—in your browser. once JSON text parses on this page.
- JSON cleaner — Remove null and optional empty values recursively—pretty-printed output; local only. once JSON text parses on this page.
- JSON apply defaults — Fill missing keys from a defaults object—no overwrites; shallow or deep; local only. 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
- Adapt null-friendly APIs to serializers that require empty strings instead of null.
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 empty string to null
ClientConvert empty string values to JSON null recursively—in your browser.
JSON cleaner
ClientRemove null and optional empty values recursively—pretty-printed output; local only.
JSON apply defaults
ClientFill missing keys from a defaults object—no overwrites; shallow or deep; local only.
JSON formatter
ClientJSON format online: pretty-print, minify, validate, escape, download .json.