EXPLORE BY TASK
JSON Tools
52 tools in this collection. Choose a task below or search the complete FeuTex toolkit.
Browse all tools
API Pagination Response Inspector
Find repeated record IDs across supplied API response pages and count distinct records.
Open tool →DeveloperBroken JSON Repair
Broken JSON Repair with local processing, explicit controls and downloadable results.
Open tool →DataConvert YAML to JSON Online
Convert your YAML files to JSON easily and quickly with our online converter. Fast, secure, and reliable.
Open tool →DataCSV to JSON Converter
Convert quoted CSV data to JSON objects using its first row as headers.
Open tool →DataData Table Studio — Clean, Filter & Export
Clean CSV, TSV or JSON tables, filter rows, remove duplicates, group and aggregate values, reorder columns and export with a readable table preview.
Open tool →DataDeduplicate JSON Records
Remove structurally identical JSON values while ignoring object key order.
Open tool →SocialDiscord Embed JSON Builder
Discord Embed JSON Builder with a downloadable result from your supplied file or structured input.
Open tool →DeveloperDotenv to JSON Converter
Parse simple environment assignments with literal quoted values.
Open tool →DataGroup JSON Records
Group a JSON array of records by a chosen property.
Open tool →DeveloperInfer JSON Schema from a Sample
Generate a conservative structural schema from one JSON sample.
Open tool →DeveloperINI to JSON Converter
Parse simple INI sections and key/value assignments into JSON.
Open tool →DataJoin JSON Arrays by Key
Left-join object arrays on a unique key from the right-hand array.
Open tool →DataJSON Array to NDJSON
Serialize each array item on its own newline-delimited JSON line.
Open tool →DataJSON Diff Formatter
Structural diff Added/removed/changed values JSON Patch Ignore array order
Open tool →DeveloperJSON Key Sorter
Recursively alphabetize object keys while preserving array order.
Open tool →DeveloperJSON Merge Patch
Apply RFC 7396 merge-patch semantics; null removes an object property.
Open tool →DeveloperJSON Minifier
Remove unnecessary JSON whitespace while preserving the parsed data.
Open tool →CalculatorsJSON Numeric Array Statistics
Calculate count, sum, mean, median, extrema and population variance.
Open tool →DataJSON Object to Entry Pairs
Convert an object to ordered key/value tuples for tabular processing.
Open tool →DeveloperJSON Patch Applier
Apply add, remove, replace, test, move and copy operations using JSON Pointer paths.
Open tool →DeveloperJSON Path Query
Extract a specific value from nested JSON using safe property and array paths.
Open tool →DataJSON Pointer Flattener
Flatten nested JSON into escaped JSON Pointer paths and leaf values.
Open tool →DeveloperJSON Property Byte Breakdown
Measure serialized UTF-8 sizes of top-level JSON property values.
Open tool →DeveloperJSON Schema Example Builder
Generate a sample JSON value from explicit object, array, scalar, enum and numeric constraints.
Open tool →DeveloperJSON Schema Subset Validator
Validate common JSON Schema constraints and report unsupported keywords.
Open tool →DataJSON to CSV Converter
Convert an array of objects to CSV with quoted fields and a combined header.
Open tool →SpreadsheetsJSON to Excel XLSX Converter
Turn an array of JSON objects into a real XLSX workbook with header columns, preserved primitive types and nested values stored as JSON text.
Open tool →DeveloperJSON to TOML
Convert JSON files to TOML with format-specific validation and downloadable output.
Open tool →DataJSON to TypeScript Type
Infer a TypeScript type from a JSON example, including nested objects, mixed arrays, nullable values and quoted property names.
Open tool →DataJSON Tools Plugin for Notepad++ 64-bit Download (x64) — Install Helper
64-bit plugin setup guide Portable/manual paths Install-folder customization
Open tool →DeveloperJSON Validator
Check JSON syntax and identify the root data type.
Open tool →DataJSON, XML and SQL Formatting Helper
auto JSON/XML/SQL pretty/minify JSON sorting SQL uppercase/compact
Open tool →SEOJSON-LD Schema Generator
Wrap your entity properties in Schema.org JSON-LD with a selected entity type.
Open tool →DataJSON-LD Syntax and Heuristic Linter
multi-block extraction context normalization graph/type summary optional common-field hints
Open tool →DataJSONC Formatter for Comments and Trailing Commas
JSONC comments Trailing commas Pretty/minify Tabs Sorting
Open tool →DataNDJSON to JSON Parser
Parse newline-delimited JSON into an array, with source-line error reporting.
Open tool →DataNested CSV to JSON Converter
Convert CSV columns with dotted headers into nested JSON, with selectable delimiters, optional type inference and empty-value handling.
Open tool →DataOnline JSON Converter
JSON pretty/minify/validate CSV export query strings escape/unescape lenient syntax
Open tool →DataOnline JSON Converter from String
escaped JSON unwrapping parse/stringify indent/minify
Open tool →DataOnline JSON Converter to CSV
JSON to delimited table nested flatten root wrappers quote/null/header options
Open tool →DataOnline JSON Generator
key paths to nested JSON value coercion object/array roots strict mode
Open tool →DataOnline JSON Generator from Java Class
Java class field parsing type-derived JSON example nested/collection subset
Open tool →DataOnline JSON Generator from Schema
Generate example JSON from a JSON Schema directly in your browser. Supports objects, arrays, enums, defaults/examples, formats, and local $ref. Fast, client-side, no uploads.
Open tool →DeveloperOnline JSON Schema Converter
JSON inference schema sample generation OpenAPI components draft/required/additionalProperties controls
Open tool →SEOOnline Schema Generator Tool (JSON-LD)
seven schema templates quick fields type-specific validation JSON-LD script export
Open tool →DeveloperOnline XSD to JSON Schema Converter
XSD to JSON Schema draft selection named definitions attributes required/arrays
Open tool →DeveloperParameterized SQL Insert Builder
Generate an INSERT statement and separate parameter values from a JSON record array.
Open tool →PDFPDF Pages to JSON Text
Export embedded PDF text as a JSON array with one page number and text string per page.
Open tool →SecurityRedact Sensitive JSON Keys
Replace values under sensitive key names at any nesting depth.
Open tool →DataRename JSON Properties
Recursively rename object keys using an explicit mapping, rejecting collisions.
Open tool →DataStrict JSON Formatting and String Escaping Workspace
Strict validate Pretty/minify Key sort JSON string escape/unescape Tab indentation
Open tool →DeveloperTOML to JSON
Convert TOML files to JSON with format-specific validation and downloadable output.
Open tool →