All Tools

Browse all 23 free JSON developer utilities

Format

JSON Formatter

Beautify and format JSON with configurable indentation and syntax highlighting

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Format

JSON Minifier

Compress and minify JSON to reduce file size with byte savings stats

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Validate

JSON Validator

Validate JSON with detailed error messages showing line and column numbers

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Convert

JSON to TypeScript

Generate TypeScript interfaces from JSON with nested types and optional fields

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Convert

JSON to CSV

Convert JSON arrays to CSV format with automatic column header detection

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Convert

CSV to JSON

Convert CSV files to JSON arrays with automatic delimiter detection

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Convert

JSON ↔ YAML

Bidirectional converter between JSON and YAML formats

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Analyze

JSON Diff

Compare two JSON objects side-by-side with colored diff highlighting

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Analyze

JSONPath Finder

Query JSON using JSONPath expressions with real-time results

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Validate

JSON Schema Validator

Validate JSON documents against a JSON Schema with detailed error paths

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Encode

JSON Escape

Escape and unescape JSON strings including unicode, newlines, and special chars

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Convert

JSON ↔ XML

Convert between JSON and XML formats bidirectionally

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Transform

JSON Sorter

Sort JSON keys alphabetically, sort arrays, or sort by a specific key

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Transform

JSON Flattener

Flatten nested JSON to dot-notation keys or unflatten dot-notation back to nested

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Encode

Base64 ↔ JSON

Encode JSON to Base64 or decode Base64 back to pretty-printed JSON

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Analyze

JSON to Table

Render JSON arrays as interactive tables with sorting, filtering, and pagination

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Analyze

JWT Decoder

Decode JWT tokens showing header, payload, and signature with expiry check

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Transform

JSON Merger

Deep merge two JSON objects with conflict highlighting in the result

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Validate

JSON Type Generator

Generate JSON Schema from a JSON sample automatically

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Convert

URL ↔ JSON

Parse URL query strings to JSON and serialize JSON back to query strings

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Validate

JSON Repair

Auto-fix broken JSON: trailing commas, single quotes, unquoted keys, comments, and Python literals

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Convert

JSON to Markdown Table

Convert JSON arrays and objects to Markdown tables ready to paste into docs or READMEs

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Transform

JSON Stringify

Explore JSON.stringify() output with indent options, string literal wrapping, and a reverse parse mode

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