THE FEUTEX TOOLKIT
JSON Tools
Choose a JSON workflow: format a document, inspect structure, compare data or convert between JSON and tabular formats.
Find repeated record IDs across supplied API response pages and count distinct records.
Broken JSON Repair with local processing, explicit controls and downloadable results.
Convert quoted CSV data to JSON objects using its first row as headers.
Convert your YAML files to JSON easily and quickly with our online converter. Fast, secure, and reliable.
Remove structurally identical JSON values while ignoring object key order.
Parse simple environment assignments with literal quoted values.
Group a JSON array of records by a chosen property.
Parse simple INI sections and key/value assignments into JSON.
Generate a conservative structural schema from one JSON sample.
Serialize each array item on its own newline-delimited JSON line.
Structural diff Added/removed/changed values JSON Patch Ignore array order
Recursively alphabetize object keys while preserving array order.
Apply RFC 7396 merge-patch semantics; null removes an object property.
Remove unnecessary JSON whitespace while preserving the parsed data.
Calculate count, sum, mean, median, extrema and population variance.
Convert an object to ordered key/value tuples for tabular processing.
Apply add, remove, replace, test, move and copy operations using JSON Pointer paths.
Extract a specific value from nested JSON using safe property and array paths.
Flatten nested JSON into escaped JSON Pointer paths and leaf values.
Measure serialized UTF-8 sizes of top-level JSON property values.
Generate a sample JSON value from explicit object, array, scalar, enum and numeric constraints.
Validate common JSON Schema constraints and report unsupported keywords.
64-bit plugin setup guide Portable/manual paths Install-folder customization
Check JSON syntax and identify the root data type.
Convert an array of objects to CSV with quoted fields and a combined header.
Turn an array of JSON objects into a real XLSX workbook with header columns, preserved primitive types and nested values stored as JSON
auto JSON/XML/SQL pretty/minify JSON sorting SQL uppercase/compact
Wrap your entity properties in Schema.org JSON-LD with a selected entity type.
multi-block extraction context normalization graph/type summary optional common-field hints
JSONC comments Trailing commas Pretty/minify Tabs Sorting
Left-join object arrays on a unique key from the right-hand array.
Parse newline-delimited JSON into an array, with source-line error reporting.
Build nested JSON objects from CSV headers such as person.name and address.city.
JSON pretty/minify/validate CSV export query strings escape/unescape lenient syntax
escaped JSON unwrapping parse/stringify indent/minify
JSON to delimited table nested flatten root wrappers quote/null/header options
key paths to nested JSON value coercion object/array roots strict mode
Java class field parsing type-derived JSON example nested/collection subset
Generate example JSON from a JSON Schema directly in your browser. Supports objects, arrays, enums, defaults/examples, formats, and loc
JSON inference schema sample generation OpenAPI components draft/required/additionalProperties controls
seven schema templates quick fields type-specific validation JSON-LD script export
XSD to JSON Schema draft selection named definitions attributes required/arrays
Generate an INSERT statement and separate parameter values from a JSON record array.
Replace values under sensitive key names at any nesting depth.
Recursively rename object keys using an explicit mapping, rejecting collisions.
Strict validate Pretty/minify Key sort JSON string escape/unescape Tab indentation
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