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JSON Redactor
Replace explicitly selected original JSON paths and download a path/count report without removed values.
Strict UTF-8 JSON document, JSON array of pointers, Replacement JSON value
Redacted JSON, Applied-path/count JSON report
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Paste JSON document input or choose a file for the document.
- Enter JSON array of pointers and Replacement JSON (default string[REDACTED]). A sole empty pointer replaces the root; it cannot accompany another path.
- Select Redact selected paths. Download result saves redacted.json; Download redaction-report.json contains only applied paths/counts. Cancel stops the worker; Reset restores defaults.
Examples
Pointers /password and /nested/a~1b replace password and the nested member named a/b. Explicit null is a valid target; missing is an error.
Limitations
- Each JSON input at most 5 MiB; source and replacement share200000 parsed values. Logical result at most 200000 values/40 nesting levels,10000-unit number tokens,1000 paths,4096 units/40 segments per pointer and 256 KiB total pointer text, combined output20 MiB,30 seconds.
- Replacement expansion is checked for repeated logical nodes, target-plus-replacement depth and complete output bytes before copying/serialization.
- Unselected decoded values and exact number tokens remain. Object serialization order, whitespace and escape spellings are not preserved.
- No automatic PII inference, wildcards, regex, deletion, security certification or guarantee of complete anonymization. Removed values are never included in the change report.
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