Free Online Developer Tools

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JSON Formatter

Format and indent messy JSON into clean, readable code

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JSON Validator

Check if your JSON is valid and get the exact error location

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JSON Viewer

Explore JSON data as a collapsible, color-coded tree

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JSON Beautifier

Turn minified or messy JSON into beautifully indented code

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JSON Pretty Print

Pretty-print JSON with your choice of indentation

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JSON Parser

Parse a JSON string and instantly see if it's structurally valid

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JSON Reader

Read and understand JSON data without tracing brackets by eye

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JSON Tree Viewer

Navigate deeply nested JSON as an expandable, collapsible tree

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JSON Explorer

Interactively explore and drill into any part of a JSON document

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JSON Editor

Edit JSON live with instant validation as you type

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JSON Linter

Catch JSON syntax errors and structural issues like duplicate keys

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JSON Minifier

Strip whitespace from JSON to make it as small as possible

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JSON Stringify

Convert JSON into an escaped string literal you can paste into code

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JSON Destringify

Convert an escaped JSON string literal back into readable JSON

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JSON Escape

Escape text so it's safe to embed as a JSON string value

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JSON Unescape

Unescape a JSON string back into its original raw text

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JSON Size Calculator

Calculate the byte size, character count and minified size of your JSON

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JSON Array Counter

Count every array in your JSON and see how many items each holds

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JSON Sort Keys

Recursively sort JSON object keys alphabetically

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JSON Statistics

Get a breakdown of your JSON's structure — objects, arrays, keys and types

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JSON Analyzer

Get a full structural report: depth, type distribution, duplicate keys and more

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CSV to JSON Converter

Paste CSV data below to convert it into a JSON array of objects.

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JSON to CSV Converter

Paste a JSON array of objects below to convert it into CSV.

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TSV to JSON Converter

Paste tab-separated (TSV) data below to convert it into a JSON array of objects.

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JSON to TSV Converter

Paste a JSON array of objects below to convert it into tab-separated (TSV) text.

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XML to JSON Converter

Paste XML below to convert it into structured JSON.

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JSON to XML Converter

Paste JSON below to convert it into well-formed XML.

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HTML Table to JSON Converter

Paste an HTML <table> below to convert its rows into a JSON array.

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JSON to HTML Table Converter

Paste a JSON array of objects below to convert it into an HTML <table>.

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Markdown Table to JSON Converter

Paste a GitHub-flavored Markdown table below to convert it into JSON.

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JSON to Markdown Table Converter

Paste a JSON array of objects below to convert it into a Markdown table.

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YAML to JSON Converter

Paste YAML below to convert it into JSON.

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JSON to YAML Converter

Paste JSON below to convert it into clean, indented YAML.

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TOML to JSON Converter

Paste TOML below to convert it into JSON.

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JSON to TOML Converter

Paste JSON below to convert it into TOML.

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INI to JSON Converter

Paste INI config data below to convert it into JSON.

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JSON to INI Converter

Paste JSON below to convert it into INI format.

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.properties to JSON Converter

Paste a Java .properties file below to convert it into JSON.

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JSON to .properties Converter

Paste JSON below to convert it into Java .properties format.

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NDJSON to JSON Converter

Paste newline-delimited JSON (NDJSON) below to convert it into a single JSON array.

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JSON to NDJSON Converter

Paste a JSON array below to convert it into newline-delimited JSON (NDJSON).

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SQL to JSON Converter

Paste a SQL INSERT statement below to convert its values into a JSON array.

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JSON to SQL INSERT Converter

Paste a JSON array of objects below to generate a SQL INSERT statement.

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JSON5 to JSON Converter

Paste JSON5 below to convert it into strict, standard JSON.

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JSON to JSON5 Converter

Paste JSON below to convert it into JSON5 format.

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JSONC to JSON Converter

Paste JSONC (JSON with comments) below to convert it into strict JSON.

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Excel to JSON Converter

Upload an Excel file, or paste copied spreadsheet cells, to convert them into JSON.

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JSON to Excel Converter

Paste a JSON array of objects below to generate and download an Excel (.xlsx) file.

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Text to JSON Converter

Paste plain text below to convert each line into an element of a JSON array.

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JSON to Text Converter

Paste a JSON array below to convert it into plain text, one value per line.

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JSON Flattener

Flatten deeply nested JSON into a single-level object with dot or bracket notation keys.

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JSON Unflattener

Rebuild nested JSON objects and arrays from a flat object with dot or bracket notation keys.

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JSON Normalizer

Clean up messy JSON by trimming whitespace and converting stringified numbers and booleans to their real types.

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JSON Merger

Deep merge two JSON objects into one, with control over how overlapping arrays are combined.

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JSON Filter

Filter a JSON array of objects down to the items matching one simple condition.

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JSON Search

Search every key and value in a JSON document for a text term, anywhere in the structure.

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JSON Key Extractor

List every key path found anywhere inside a JSON document, one per line.

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JSON Value Extractor

Pull out every value for a chosen key name, no matter how deeply it's nested in the document.

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JSON Deduplicator

Remove duplicate items from a JSON array, comparing either whole objects or a single key.

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JSON Null Remover

Recursively strip null values from a JSON document, with an option to also remove empty strings, arrays, and objects.

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JSON Splitter

Split a large JSON array into smaller, fixed-size chunks for batching or pagination.

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JSON Path Finder

Look up the value at one exact path in a JSON document, using dot or bracket notation.

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JSONPath Tester

Test JSONPath expressions with wildcards and recursive descent against your own JSON document.

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JMESPath Tester

Test full JMESPath expressions — including filter expressions and built-in functions — against your own JSON.

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JSON Query Tool

Filter a JSON array of objects using multiple conditions chained together with AND / OR.

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JSON Obfuscator

Replace real values in a JSON document with random data, keeping the exact same structure and types.

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JSON Diff Checker

Compare two JSON documents and see exactly what was added, removed, or changed, with the full path to each difference.

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JSON Patch Generator

Generate an RFC 6902-style JSON Patch describing how to turn JSON A into JSON B.

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JSON Repair Tool

Automatically fix broken JSON — trailing commas, single quotes, unquoted keys, and other common mistakes.

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Timestamp Converter

Convert a Unix timestamp or date string into ISO 8601, UTC, local time, and human-readable relative time.

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JSON Schema Validator

Validate JSON data against a JSON Schema and see every validation error with its exact path.

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JSON Schema Generator

Generate a JSON Schema automatically from a sample JSON document.

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JSON Schema Viewer

Turn a raw JSON Schema into a readable, indented outline.

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JSON Schema Diff

Compare two JSON Schemas and see exactly what changed.

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JSON Schema to TypeScript

Convert a JSON Schema into a TypeScript interface.

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JSON Schema to Java

Convert a JSON Schema into a Java POJO class.

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JSON Schema to OpenAPI

Convert a JSON Schema into an OpenAPI 3.0 schema object.