JSON Tools
Inspect API responses, validate syntax, compare documents and convert structured data into formats your workflow needs.
22 tools with local browser processing.
All json tools
JSON Formatter
Format, beautify, validate, minify and pretty print JSON online. Fix common syntax issues, inspect tree view and keep your data private in-browser.
JSON Minifier
Minify JSON online by removing whitespace and line breaks. See exact bytes saved, validate syntax and copy compact JSON without uploading your data.
JSON Validator
Validate JSON syntax online and find exact parse errors by line and position. Check JSON, lint common mistakes and keep all data in your browser.
JSON Viewer
View JSON online in a searchable collapsible tree. Explore nested objects and arrays, format raw JSON and inspect large payloads privately in your browser.
JSON Parser
Parse JSON online, inspect values and catch syntax errors with clear line and column details. Understand parsed types and structure without server uploads.
JSON Editor
Edit JSON online with live validation, formatting and tree view. Fix syntax, search nested data and copy or download clean JSON entirely in your browser.
JSON to TOON Converter
Convert JSON to TOON for compact LLM prompts. Reduce repeated keys in tabular data, compare token counts and keep conversion entirely in your browser.
JSON to CSV
Convert JSON arrays to CSV online. Flatten nested objects, create spreadsheet-ready rows and copy or download CSV privately in your browser.
CSV to JSON
Convert CSV to a JSON array online with quoted-field and custom-delimiter support. Preview structured output and process files entirely in your browser.
JSON to YAML
Convert JSON to clean YAML online for Kubernetes, Docker and CI configs. Preserve nested objects and arrays with private browser-side conversion.
YAML to JSON
Convert YAML to JSON online with support for nested maps and lists. Validate config structure and get clean JSON without uploading your data.
JSON to XML
Convert JSON to XML online with configurable root and item tags. Preserve nesting, preview valid XML and keep all processing in your browser.
XML to JSON
Convert XML to JSON online while preserving attributes, nested elements and repeated nodes. Preview clean JSON with private in-browser processing.
JSON to SQL
Convert JSON to SQL INSERT statements and CREATE TABLE schemas online. Map object fields to columns and generate database-ready SQL in your browser.
JSON to Excel
Convert JSON to a real Excel XLSX file online. Flatten structured data into rows, preserve useful types and download the workbook from your browser.
JSON to TypeScript
Generate TypeScript interfaces and type definitions from JSON online. Infer nested object, array and primitive types from sample API responses.
JSON to GraphQL
Generate GraphQL type definitions from sample JSON online. Infer nested object, list and scalar fields to speed up schema prototyping.
JSON to HTML Table
Convert JSON arrays into clean HTML table markup online. Preview rows and columns, copy table code and keep source data in your browser.
JSON to Markdown Table
Convert JSON arrays to Markdown tables for GitHub, READMEs, wikis and docs. Generate clean pipe-table output instantly in your browser.
JSON Schema Validator
Validate JSON against JSON Schema draft-07 online or generate a starter schema from sample data. See clear validation errors in your browser.
JSON Diff & Compare
Compare two JSON documents online and highlight added, removed and changed values. Semantic comparison ignores key order and runs in your browser.
JSONPath Tester
Test JSONPath expressions against JSON online and see matching values instantly. Explore paths, filters and nested data with live browser-side results.
Choose the right tool
Start with the formatter for readable JSON, the validator for syntax errors, or the viewer for nested data. Use JSON Schema when you need to check required fields and types. Directional converters explain how objects and arrays map to rows, markup or generated code.
- JSON Formatter: Format, beautify, validate, minify and pretty print JSON online. Fix common syntax issues, inspect tree view and keep your data private in-browser.
- JSON Validator: Validate JSON syntax online and find exact parse errors by line and position. Check JSON, lint common mistakes and keep all data in your browser.
- JSON Viewer: View JSON online in a searchable collapsible tree. Explore nested objects and arrays, format raw JSON and inspect large payloads privately in your browser.
- JSON Editor: Edit JSON online with live validation, formatting and tree view. Fix syntax, search nested data and copy or download clean JSON entirely in your browser.
- JSON Diff & Compare: Compare two JSON documents online and highlight added, removed and changed values. Semantic comparison ignores key order and runs in your browser.
- JSON to TOON Converter: Convert JSON to TOON for compact LLM prompts. Reduce repeated keys in tabular data, compare token counts and keep conversion entirely in your browser.