JSON Patch Tool

JSON Patch Tool | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Converter
Input types: textarea
Output type: text
Sample coverage: 4
API ready: Yes

Overview

The JSON Patch tool allows you to precisely modify, update, or transform JSON documents by applying a sequence of operations defined by the RFC 6902 standard.

When to use

When you need to apply specific, programmatic changes to a large JSON object without rewriting the entire file.
When you are working with API responses and need to test how specific updates affect the data structure.
When you want to maintain a clean, version-controlled history of changes to your configuration files.

How it works

1Paste your original JSON document into the 'Original JSON' input field.
2Define your modifications using the standard JSON Patch format (RFC 6902) in the 'Patch Operations' field.
3Click the process button to apply the operations and generate the updated JSON output.

Use cases

Updating specific configuration values in a large JSON settings file.
Removing deprecated fields from a legacy API response structure.
Adding new items to an existing array within a JSON data object.

Examples

1. Update Configuration Value

Developer

Background

A developer needs to update a single 'timeout' value in a large configuration file without manually editing the entire structure.

Problem

Manually editing large JSON files is error-prone and risks syntax mistakes.

How to use

Input the config JSON and use a 'replace' operation to target the specific path.

[{"op": "replace", "path": "/settings/timeout", "value": 60}]

Outcome

The 'timeout' value is updated to 60 while all other configuration settings remain unchanged.

2. Add Item to Array

Data Analyst

Background

An analyst needs to append a new category to an existing list of tags within a JSON dataset.

Problem

Appending data to a nested array manually can lead to missing commas or bracket errors.

How to use

Use the 'add' operation to insert a new value at the end of the specified array path.

FAQ

What is JSON Patch?

JSON Patch is a standard format (RFC 6902) for describing changes to a JSON document, allowing for efficient updates.

Which operations are supported?

The tool supports all standard RFC 6902 operations, including add, remove, replace, move, copy, and test.

Can I apply multiple operations at once?

Yes, you can provide an array of operations in the 'Patch Operations' field to perform multiple edits in a single pass.

Is my data stored on your server?

No, all processing is performed locally in your browser to ensure your data remains private and secure.

What happens if an operation fails?

If an operation is invalid or the path does not exist, the tool will return an error message indicating the specific operation that failed.

[{"op": "add", "path": "/categories/-", "value": "new-category"}]

Run this tool

Inputs

Result

Examples that match this tool

Continue with connected tools and hubs

Inputs

Result

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Overview

When to use

How it works

Use cases

Examples

1. Update Configuration Value

2. Add Item to Array

FAQ

Terraform Plan JSON Samples

Chat Transcript JSON Samples

JSON Samples

Rich Media JSON Samples

JSON Pointer Tool

CSON to JSON Converter

EDN to JSON Converter

GraphQL to JSON Converter

JSON Interchange and Format Translation Tools

JSON Inspection, Diff, and Transformation Tools

JSON Schema, Mock Data, and API Fixture Generators

JSON Formatting, Diff, and Normalization Tools