JSON Utilities
Format, prettify, minify, diff compare, validate schemas, and convert JSON payloads.
JSON Formatter & Beautifier – Format & Prettify JSON Online Free
Free online JSON formatter and beautifier. Instantly prettify, format, and validate raw JSON with custom indentation and line numbers. 100% in-browser privacy.
JSON Minifier – Compress & Minify JSON Online Free
Compress and minify JSON data online for free. Strip non-essential whitespace, tabs, and newlines to shrink payload sizes by up to 50%. 100% in-browser.
JSON Diff – Compare JSON Objects & Files Online Free
Compare two JSON objects or files online for free. Pinpoint added, removed, and modified keys with visual AST tree diffs. 100% in-browser privacy.
JSON to YAML Converter – Convert JSON to YAML Online Free
Convert JSON to clean YAML online for free. Support for custom 2-space or 4-space indentation, nested mappings, and array formatting. 100% in-browser.
JSON Syntax Validator – Validate & Check JSON Online Free
Validate and check JSON syntax online for free. Pinpoint syntax errors with exact line and column numbers. 100% in-browser privacy, zero server storage.
JSON Schema Validator – Test & Validate JSON Schemas Online Free
Validate JSON data against Draft-07 and Draft 2020-12 schemas online for free. Pinpoint type, format, and property errors instantly. Fast & secure.
JSONPath Evaluator – Query & Test JSONPath Online Free
Query and extract JSON nodes using JSONPath expressions online for free. Test filters, recursive descent, and array slices with 100% in-browser privacy.
JSON to CSV Converter – Convert JSON to CSV & Excel Online Free
Convert JSON arrays and nested objects to CSV and Excel online for free. Flatten keys with RFC 4180 escaping. 100% in-browser privacy, zero server storage.
JSON Escaper – Escape JSON Strings Online Free
Convert raw JSON text into escaped strings online for free. Escape quotes, backslashes, and newlines for cURL and SQL. 100% in-browser privacy.
JSON Unescaper – Unescape Stringified JSON Online Free
Unescape backslash-escaped JSON strings online for free. Clean stringified logs, double-escaped strings, and API payloads. 100% in-browser privacy.
JSON Repair Tool – Fix Malformed & Invalid JSON Online Free
Fix malformed JSON, unquoted keys, single quotes, trailing commas, and Python booleans into 100% valid JSON online for free. 100% in-browser privacy.
JSON to TypeScript Converter – Generate TS Interfaces Online Free
Convert JSON objects and API payloads into clean TypeScript interfaces or type aliases online for free. Recursive sub-types, 100% in-browser privacy.
JSON to XML Converter – Convert JSON to XML Online Free
Convert JSON objects and arrays into clean XML documents online for free. Custom root tags, entity escaping, and 100% in-browser privacy.
JSON Flatten Tool – Flatten Nested JSON to Dot Notation Free
Flatten deeply nested JSON objects and arrays into single-level dot-notation key-value maps online for free. 100% client-side privacy.
JSON Expand Tool – Unflatten Dot Notation JSON Online Free
Expand flat dot-notation JSON keys into full nested object and array hierarchies online for free. Custom delimiters, 100% client privacy.
JSON Merge Tool – Deep Merge JSON Objects Online Free
Deep-merge multiple JSON objects online for free. Custom array strategies (replace, concat, union), null skipping, and 100% client-side privacy.
Mock JSON Generator – Generate Realistic JSON Data Online
Generate realistic mock JSON datasets with custom fields, types (UUIDs, names, emails, dates), and record counts online for free. 100% in-browser.
JSON Sorter – Sort JSON Keys Alphabetically Online Free
Sort JSON object keys alphabetically in ascending or descending order. Deep recursive key sorting with 100% in-browser privacy.
JSON to JSON Schema Generator – Infer JSON Schema Online Free
Generate standards-compliant JSON Schema Draft-07 and 2020-12 from sample JSON documents online for free. 100% in-browser privacy.