UtilityDock

Free browser-based data tool

JSON Redactor

Redact sensitive JSON fields instantly.

Your files never leave your computer.All processing happens locally inside your browser.

  • Select exact nested fields to protect
  • Choose a standard or fixed custom replacement
  • Copy or download pretty or minified JSON
1

Upload JSON

Choose a .json file. It is read only by this browser tab.

Drop a JSON file here

or use the file browser

2

Paste and validate JSON

UtilityDock detects exact leaf paths without changing your source.

Paste JSON or upload a file to begin.

What JSON redaction is

Replace sensitive values while preserving structure

JSON redaction keeps property names, nesting, arrays, and record order intact while replacing selected leaf values. The result remains valid JSON and can be reviewed before it is copied or downloaded.

Removing sensitive information

Protect credentials, contact details, and internal values

Select exact paths such as credentials.apiKey,profile.email, or authorization.token. Use a visible mask, an empty string, null, or a fixed custom label without changing unselected data.

Sharing API payloads safely

Create safer examples for tickets and collaboration

Redact secrets before placing request or response bodies in bug reports, support conversations, pull requests, or test fixtures. Everything is processed locally in the current tab.

Documentation examples

Keep realistic structure without exposing real values

Preserve the shape developers need while replacing customer data and tokens with intentional placeholders. Pretty output is ready for documentation; minified output fits compact fixtures and command-line workflows.

Examples

Choose a replacement that makes the outcome clear

FieldReplacementResult
credentials.apiKey[REDACTED]Visible security mask
profile.emailEmpty stringPreserved string type
customer.phoneNullExplicit missing value
account.idexample-accountFixed documentation value

Modification utilities

Continue with related UtilityDock JSON workflows

JSON Value ReplacerReplace exact typed values in selected fields.JSON Property MoverRelocate exact fields to new paths.JSON Property CopierDuplicate exact fields into new names or paths.JSON Array Field RemoverDelete selected properties across object arrays.JSON Array Field RenamerRename selected nested properties.JSON Patch GeneratorGenerate RFC 6902 modification operations.JSON Patch ApplierApply RFC 6902 operations locally.JSON Merge Patch ApplierApply an RFC 7386 update document.JSON Pointer ExplorerInspect exact paths throughout a document.JSON Formatter & ValidatorValidate and format any JSON document.

FAQ

Questions about redacting JSON

Does UtilityDock upload or store my JSON?

No. Your files never leave your computer. Validation, field detection, redaction, preview, copying, and download creation all happen locally inside your browser.

What JSON documents can I redact?

Version 1 accepts JSON objects and arrays. Arrays of objects share discovered field paths so one selection can redact the same field across every record.

Which replacement options are available?

Replace selected values with [REDACTED], an empty string, JSON null, or one fixed custom string.

Can I redact nested fields?

Yes. UtilityDock detects nested object and indexed array paths, then replaces only the exact leaf values you select.

Does redaction remove properties?

No. It preserves document structure and property names while replacing selected values. Use JSON Array Field Remover when properties must be deleted.

Does UtilityDock automatically detect personal information?

No. Version 1 requires you to select exact fields. It does not use pattern matching, regular expressions, automatic PII detection, conditional rules, or APIs.