Can I insert multiple new nodes after a single target node at once?

Yes. Comma-separate multiple node names in the "New Node" field (both English and Chinese commas work). New nodes are inserted in the order you typed them, immediately after the target node. For example, target = id, new = created_at, updated_at adds both fields right after id.

What happens if my new node names are purely numeric?

The tool auto-sorts numeric keys by value and places them at the front (this matches JS object key ordering rules). If you want to preserve input order, prefix the numbers with a non-digit character, e.g. k_001, k_002.

What if the target node doesn't exist?

An error is shown and processing stops — your original data is never touched. Double-check the key name exists in the JSON (case-sensitive). If your JSON structure is irregular, use JSON Node Edit first to inspect or normalize it.

Will it lag on large files?

For big JSON files, drop them into the upload area instead of pasting. All processing happens locally in your browser — files never leave your machine.

How do I assign values to the newly inserted nodes?

This tool only inserts empty field placeholders. To fill values in bulk, use JSON Node Edit's "Replace Node Value" operation. To copy a value from another field, use JSON Value Transformer with key mappings. Chaining these two tools covers most structure-adjustment workflows.

JSON Node Insertion

JSON Node Insertion Tool is an efficient tool for optimizing data structures. It allows you to insert one or more new nodes after a specified node in a JSON document, making the data structure more logical and efficient.

JSON Node Inserter Interface

Features

Precisely insert multiple new nodes after a specified node.
Support for inserting multiple nodes, separated by commas (supports both English and Chinese commas).
Batch insertion of nodes to improve data processing efficiency.

How to Use

Input JSON Data
- Drag and drop to upload a JSON or text file.
- Or directly paste the JSON content into the text box.
- For large JSON files, upload the file instead of pasting it.
Set Insertion Parameters
- Target Node: Enter the node name where you want to insert new nodes (this determines the insertion position).
- New Node: Enter the names of the nodes to be inserted, separated by commas.
Processing and Export
- Click the "Start Processing" button to execute the insertion.
- The processed result will be displayed in the text area below.
- You can choose to copy the full result, copy only the node values, or download the processed file.

Usage Tips

Ensure that the input JSON format is correct; otherwise, it cannot be processed.
The target node must exist in the JSON; otherwise, an error will be displayed.
New nodes will be inserted in the order they are entered, immediately after the target node.
If the node names are purely numeric, they will be automatically sorted by value and placed at the front.
For large JSON files, upload the file instead of pasting it — the page stays responsive.

Use Cases

Optimize JSON configuration file structure.
Adjust API response data format.
Batch add new attributes to existing data structures.
Quickly reorder system configuration parameters.

#JSON Node Insertion

#Features

#How to Use

#Usage Tips

#Use Cases

JSON Node Insertion

Features

How to Use

Usage Tips

Use Cases