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JSON Editor

World's Simplest JSON Tool

Free online JSON editor and viewer. Just load your JSON in the input field and you can immediately start editing it from your browser. In the tool options, you can enable line numbering and visualize tabs and line breaks. Additionally, you can flash matching opening or closing brackets when you hover over them and highlight the current cursor line. Created for developers by developers from team Browserling.

᠎᠎᠎          Tool Options

JSON Formatting

Show where tabs and newlines
are inserted in your JSON data
Show line numbers before
each line for easier reference.

Code Navigation

Visually highlight the corresponding
opening bracket when you hover
over the closing bracket, and
vice versa.
Change the background color
of currently selected line.

What Is a JSON Editor?

This tool lets you view your JSON (JavaScript Object Notation) files and edit them in your web browser. It offers a neat and intuitive interface that color-codes different elements of JSON syntax, making the code more readable and understandable. The tool also detects and highlights JSON syntax errors, helping you quickly identify and fix them. Various tool configuration options allow you to customize the JSON editor's behavior to optimize your workflow. Specifically, you can display invisible characters, such as tabs and newlines, to make sure the code doesn't mix spaces and tabs and doesn't have trailing whitespaces. You can also enable line numbers for easier navigation. Additionally, you can visually highlight matching brackets upon hovering over them and change the background color of the currently selected line to aid focus. Editing JSON is most convenient when it's prettified and has an even indentation matching the hierarchical code depth levels. If your JSON code isn't already formatted, then you can quickly create a prettified version via our Prettify JSON tool. Json-abulous!


JSON Editor Examples

Click to try!

View JSON with Color Highlighting

In this example, we demonstrate how the JSON editor renders a neatly formatted JSON data structure and how it adds color highlighting to it. Adding color highlighting to JSON simplifies the reading and understanding of different parts of the data structure, such as arrays, objects, keys, and values.

[ "T-Shirt", "S", "Blue", { "inStock": 10, "onSale": true } ]
Required options
These options will be used automatically if you select this example.
Show where tabs and newlines
are inserted in your JSON data
Show line numbers before
each line for easier reference.
Visually highlight the corresponding
opening bracket when you hover
over the closing bracket, and
vice versa.
Change the background color
of currently selected line.

Detect and Correct Errors

In this example, we use the JSON viewer to detect and correct errors in the JSON object. As you can see, the tool indicates an error on line 2, where single quotes are mistakenly used instead of regular double quotes for the value of the title "title" key. As we have enabled line numbering in the options, we can quickly locate the erroneous line and fix the error by replacing single quotes with double quotes.

{ "title": 'Number Pi (π)', "number": 3.14159, "isConstant": true, "isFinite": false, "normality": null, "applications": [ "Engineering", "Physics" ] }
Required options
These options will be used automatically if you select this example.
Show where tabs and newlines
are inserted in your JSON data
Show line numbers before
each line for easier reference.
Visually highlight the corresponding
opening bracket when you hover
over the closing bracket, and
vice versa.
Change the background color
of currently selected line.

Edit a Large JSON File with Nested Elements

In this example, we load a complex JSON file, which includes numbers, strings, nested objects, and arrays. As our JSON editor is equipped with a code highlighting component, it makes it very easy to navigate through the file – the line of the current cursor position stands out, the corresponding bracket pairs get illuminated, and numbers, strings, and other syntax elements get printed in distinct colors.

{ "brand": "Tesla", "model": "Model 3", "year": 2022, "color": "White", "mileage": 15000, "features": { "autopilot": true, "sunroof": false }, "serviceHistory": [ "Oil change", "Tire rotation" ] }
Required options
These options will be used automatically if you select this example.
Show where tabs and newlines
are inserted in your JSON data
Show line numbers before
each line for easier reference.
Visually highlight the corresponding
opening bracket when you hover
over the closing bracket, and
vice versa.
Change the background color
of currently selected line.

Pro tips Master online json tools

You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!

https://onlinetools.com/json/edit-json?input=%5B%0A%20%20%22T-Shirt%22%2C%20%22S%22%2C%20%22Blue%22%2C%0A%20%20%7B%0A%20%20%20%20%22inStock%22%3A%2010%2C%0A%20%20%20%20%22onSale%22%3A%20true%0A%20%20%7D%0A%5D&show-lines=false&show-invisible=false&match-brackets=false&highlight-line=false

All JSON Tools

Didn't find the tool you were looking for? Let us know what tool we are missing and we'll build it!
Quickly color-code the syntax of a JSON file.
Quickly beautify a JSON data structure.
Quickly compress a JSON file.
Quickly convert JavaScript data to a JSON string.
Quickly convert a JSON string to JavaScript data.
Quickly check JSON for errors and report them.
Quickly escape special JSON characters.
Quickly unescape an escaped JSON string.
Quickly convert a JSON data structure to an XML file.
Quickly convert an XML file to a JSON data structure.
Quickly convert a JSON data structure to a YAML markup.
Quickly convert a YAML markup to a JSON data structure.
Quickly convert a JSON file to a TSV file.
Quickly convert TSV data to a JSON file.
Quickly convert a JSON file to a CSV file.
Quickly convert CSV data to JSON data.
Quickly convert a JSON structure to binary JSON encoding.
Quickly convert JSON to a PNG, GIF, JPG, or BMP image.
Quickly create a screenshot from JSON code.
Quickly encode JSON to base64.
Quickly decode base64 to JSON.
Quickly convert JSON to URL-encoding.
Quickly convert URL-escaped JSON back to JSON.
Quickly convert JSON data to plain text.
Quickly edit a JSON file in a neat JSON editor in your web browser.
Quickly extract keys from objects in JSON data.
Quickly extract values from objects in JSON data.
Quickly reduce the nesting level of an array of arrays.
Quickly create a single-level JSON object from nested JSON objects.
Quickly rewrite JSON strings, keys, and values using escape codes.
Quickly obfuscate a JSON data structure.
Quickly remove certain information from a JSON data structure.
Quickly display detailed information about a JSON data structure.
Quickly convert a JSON file to properties file.
Quickly convert a properties file to a JSON file.

Coming Soon

These JSON tools are on the way!
Find JSON Keys/Values

Find keys and/or values that interest you in a JSON file.

Convert JSON to a List

Create a text list from a JSON array or object.

Convert a List to JSON

Create a JSON array from a text list.

Convert JSON to Form Data

Generate HTTP form data from a JSON object.

Convert Form Data to JSON

Generate JSON object from HTTP form data.

Convert JSON to HTML

Create a HTML table from keys and values of a JSON object.

Convert JSON to CSON

Convert a JSON file to a CSON file.

Convert CSON to JSON

Convert a CSON file to a JSON file.

Convert JSON to TOML

Convert a JSON config to a TOML config.

Convert TOML to JSON

Convert a TOML file to a JSON file.

Convert JSON to Bencode

Convert a JSON data structure to Bencode encoding.

Convert Bencode to JSON

Convert Bencode data to JSON data.

Convert JSON to JSONL

Convert a JSON file to a JSONL file.

Convert JSONL to JSON

Convert a JSONL file to a JSON file.

Convert BSON to JSON

Convert binary JSON data structure (BSON) to JSON.

Convert JSON to UBJSON

Convert a JSON file to a universal binary JSON (UBJSON).

Convert UBJSON to JSON

Convert universal binary JSON (UBJSON) to regular JSON.

Convert JSON to Message Pack

Serialize JSON data to binary MessagePack format.

Convert Message Pack to JSON

Unserialize binary MessagePack to a JSON struct.

Convert JSON to Protobuf

Serialize JSON data to binary Protobuf format.

Convert Protobuf to JSON

Unserialize binary Protobuf to a JSON struct.

Convert JSON to a LaTeX Table

Generate a LaTeX table from a JSON object.

Convert JSON to INI

Convert a JSON data file to an INI configuration file.

Convert INI to JSON

Convert an INI configuration file to JSON data file.

Truncate JSON

Loop over JSON structure and truncate all values or keys.

Find JSON Depth

Find the nesting depth of a JSON data structure.

Convert JSON to a Data URI

Convert a JSON data structure to a data URL.

Convert JSON to a PHP Array

Create a PHP data structure from a JSON data structure.

Convert a PHP array to JSON

Create a JSON data structure from a PHP data structure.

Compare Two JSON Files

Diff JSON files and show differences visually.

Sort JSON Object Keys

Lexicographically sort the order of JSON object keys.

Swap JSON Keys with Values

Exchange keys with values in a JSON file.

Create a Random JSON Array

Create a JSON array with random values.

Create a Random JSON Object

Create a JSON object with random keys and values.

Randomize a JSON Array

Randomly change the positions of array elements.

Randomize a JSON Object

Randomly change the order of key, value pairs.

Add Spacing to JSON

Add random spaces and newlines in a JSON file.

Tokenize JSON

Tokenize a JSON data structure.

Remove JSON Syntax

Remove all JSON syntax and leave just the values.

Change JSON Syntax

Change curly braces, commas, and quotes to other symbols.

Fix Quotes in JSON

Fix incorrectly quoted (usually single quote) keys and values.

Use Single Quotes in JSON

Make all keys and values in a JSON to be single-quoted.

Use Double Quotes in JSON

Make all keys and values in a JSON to be double-quoted.

Generate FakeSON

Create JSON that looks real but is fake (FakeSON).

Run jq

Execute a jq query on a JSON data structure.

Filter JSON

Filter keys and values that match a pattern.

Split a String into a JSON Array

Create a JSON array from a string.

Group a JSON Array

Create groups of JSON array items.

Merge JSON Arrays

Merge two or more JSON arrays together.

Compare JSON Arrays

Find differences in two or more JSON arrays.

Merge JSON Objects

Merge two or more JSON objects together.

Damage JSON

Introduce errors in a JSON data structure.

Fix JSON

Try to fix a damaged JSON to the best of our ability.

Create JSON Art

Convert images to valid JSON strings that look like ASCII art.

Visualize a JSON Structure

Create an abstract visualization of JSON's complexity.


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