Workflow
Create and apply an API update
Generate a standards-based patch, review it, then apply it.
Data Toolkit capability
JSON Modification Tools
Apply patches and make precise property or value changes while preserving valid JSON.
Your files never leave your computer.All processing happens locally inside your browser.
- 9 focused production utilities
- No signup and no server-side file processing
- Use one tool or follow a complete workflow
Choose the right workflow
Modification tools change selected parts of a document. They are useful for migrations, configuration updates, safe sharing, and standards-based API changes.
- Use Patch or Merge Patch tools when an API expects RFC 6902 or RFC 7386.
- Use Copier, Mover, Swapper, or Value Replacer for explicit structural edits.
- Use JSON Redactor before sharing payloads that contain sensitive values.
Workflow
Migrate property structure
Copy, move, rename, swap, or replace explicit fields.
Workflow
Share JSON safely
Redact sensitive fields before comparison or delivery.
All available tools
Explore json modification tools
JSON Property SwapperSwap exact JSON property names or values without overwriting conflicting data.JSON Value ReplacerReplace exact typed JSON values across selected fields without changing structure.JSON Property MoverMove JSON properties to new names or nested paths without overwriting values.JSON RedactorRedact sensitive JSON fields with fixed, null, empty, or custom replacements.JSON Property CopierCopy JSON properties to new names or nested paths without overwriting values.JSON Merge Patch ApplierApply RFC 7386 Merge Patch documents and preview updated JSON.JSON Merge Patch GeneratorGenerate RFC 7386 Merge Patch documents from two JSON files.JSON Patch ApplierApply RFC 6902 patches and preview updated JSON locally.JSON Patch GeneratorGenerate RFC 6902 patches from two JSON documents.