Featured Product
Cheat Sheet
jq Cheat Sheet
Complete jq cheat sheet with syntax, builtins, and CLI flags. Searchable reference covering pipes, select, map, sort_by, group_by, regex, format strings, paths, and more.
REST API Cheat Sheet
Complete REST API cheat sheet covering HTTP methods, status codes, headers, authentication, JSON request and response formats, pagination, filtering, versioning, caching, idempotency, and API best practices.
Convert Tools
CSV to JSON
Transform CSV data to JSON format online - ideal for APIs, web development, and data processing tasks.
ENV to JSON
Convert .env files to JSON instantly in your browser. Handles comments, quoted values, duplicate keys, invalid lines, and optional smart type coercion.
JSON Lines Converter
Convert JSON Lines and NDJSON to JSON arrays, pretty JSON, CSV, or parse reports directly in your browser.
JSON to C# Class
Convert JSON to C# classes instantly. Supports nested models, root arrays, nullable properties, DateTime detection, namespaces, and JSON serialization attributes.
JSON to CSV
Convert JSON arrays to CSV format online - customizable delimiters, headers, and direct download. Perfect for data analysis and spreadsheet applications.
JSON to Dart Class
Convert JSON to null-safe Dart classes instantly. Supports nested classes, root arrays, nullable types, int/double and DateTime detection, plus manual fromJson/toJson, json_serializable, and freezed for Flutter and Dart backends.
JSON to ENV
Convert JSON objects to .env files instantly. Supports quote modes, export prefixes, nested object serialization, arrays, and invalid key detection.
JSON to Go Struct
Convert JSON to Go struct definitions instantly. Supports nested objects, arrays, JSON tags, exported fields, and optional omitempty output.
JSON to Java Class
Convert JSON to Java classes instantly. Generate records, POJOs with getters and setters, or Lombok @Data classes with nested models, Integer/Long detection, java.time dates, and Jackson or Gson annotations.
JSON to Kotlin Data Class
Convert JSON to Kotlin data classes instantly. Supports nested classes, root arrays, nullable types, Int/Long detection, and kotlinx.serialization, Moshi, Jackson, and Gson annotations.
JSON to PHP Array
Convert JSON to PHP array code instantly. Supports short/long array syntax, single or double quotes, custom indentation, trailing commas, and nested structures.
JSON to Prisma Schema
Convert sample JSON into Prisma schema model drafts instantly. Generates models with Int/Float/Boolean/String/DateTime detection, relations for nested objects and arrays, foreign keys, and a datasource block — perfect for prototyping a database schema.
JSON to Python Dataclass
Convert JSON to Python dataclasses instantly. Supports nested models, root arrays, Optional fields, list typing, and datetime detection.
JSON to Ruby Struct
Convert JSON to Ruby Structs instantly. Generates nested structs, arrays of structs, and a recursive from_h builder — with Struct (keyword_init), Data.define, or plain class output for Ruby and Rails.
JSON to Rust Struct
Convert JSON to serde-ready Rust structs instantly. Supports nested structs, root arrays, Option for nullable fields, Vec for arrays, i32/i64 detection, chrono dates, snake_case rename, and derive macros.
JSON to Swift Struct
Convert JSON to Swift Codable structs instantly. Supports nested structs, root arrays, optionals, CodingKeys, Hashable/Equatable conformance, Date detection, and public access for iOS and macOS.
JSON to Text
Transform JSON data to readable plain text format - perfect for documentation and data analysis.
JSON to TOML
Convert JSON to TOML format online - ideal for configuration files and modern application settings.
JSON to TypeScript Interface
Convert JSON objects into TypeScript interface definitions instantly. Supports nested objects, arrays, and custom root interface names.
JSON to XML
Convert JSON objects to XML format instantly - transform JSON with automatic formatting, attribute support, and array handling for seamless data conversion.
JSON to YAML
Convert JSON to YAML format online - ideal for configuration files and DevOps workflows.
JSON to Zod Schema
Convert JSON into ready-to-paste Zod schemas instantly. Generates z.object, z.array, mixed-array unions, and optional inferred TypeScript types in your browser.
Minify JSON
Minify JSON files online - reduce file size while maintaining data integrity for faster loading.
SQL INSERT to JSON
Convert SQL INSERT statements into clean JSON arrays. Parse single and multi-row inserts with quoted identifiers, NULLs, and type inference — perfect for debugging, migrations, and fixtures. 100% client-side.
TOML to JSON
Convert TOML to JSON format online - transform configuration files for APIs and data processing.
XML to JSON
Convert XML documents to JSON format instantly - transform XML files with automatic formatting, attribute preservation, and array detection for seamless data conversion.
YAML to JSON
Transform YAML to JSON format online - perfect for APIs and web development projects.
Dev Tools
Environment Variables Parser
Parse raw .env files into structured JSON, detect duplicate keys, flag syntax issues, and export clean environment variable lists online.
GraphQL Variables Formatter
Format GraphQL variables online. Paste a variables object or full GraphQL request body, auto-extract variables, validate JSON, sort keys, and wrap back into request payloads.
jq Query Tester
Test jq filter expressions against JSON in your browser. Pipe, select, map, sort_by, group_by, and more — entirely client-side with sample queries and inline errors.
JSON Diff Tool
Compare two JSON objects and highlight differences — added, removed, and changed keys shown side by side.
JSON Escape / Unescape
Escape special characters in JSON strings or unescape encoded JSON back to readable format.
JSON Flattener
Flatten nested JSON structures to flat key-value pairs - customize delimiters, control depth, and choose array handling methods for seamless data transformation.
JSON Lines Viewer
View and inspect JSON Lines (JSONL / NDJSON) files online. Paste or upload a file and browse each record pretty-printed, with per-line validation, search and table view — all client-side.
JSON Merge Patch Builder
Diff two JSON documents and emit a minimal RFC 7396 merge patch. Null deletes keys, objects deep-merge — simpler than RFC 6902. Apply-back verification, 100% client-side.
JSON Merger
Merge multiple JSON files into one with concatenation, deduplication, and key-based merging strategies. Supports bulk processing and preserves data structure for seamless consolidation.
JSON Patch Builder
Diff two JSON documents and emit a minimal RFC 6902 patch (add, remove, replace, copy, move, test). Verifies the patch by re-applying it to the source — 100% client-side.
JSON Pretty Print
Format and beautify JSON with customizable indentation styles - support for 4 space, 3 space, 2 space, tab, and compact formats. Validate against multiple JSON specifications with error fixing.
JSON Sorter
Sort JSON object keys alphabetically (A-Z or Z-A) with recursive or top-level depth, optional array sorting, case sensitivity, and four indent styles. Produces canonical, diff-friendly JSON entirely in your browser.
JSON Transformer
Transform or split JSON arrays with field selection, renaming, and removal - 1-to-1 transformation and 1-to-2 splitting with bulk processing and easy reset.
JSON Validator
Validate JSON against schemas online - generate schemas from examples, support for draft-07, draft-2019-09, draft-2020-12 with detailed error reports.
JSON Viewer
View and explore JSON as a collapsible, color-coded tree. Paste or upload JSON, expand/collapse nodes, search keys and values, copy JSON paths, and format or minify — all client-side.
JSONPath Tester
Test and evaluate JSONPath expressions against JSON data instantly in your browser.
Logfmt Formatter
Format, validate, and convert logfmt key=value structured logs. Prettify, expand one field per line, align into a table, or convert to JSON. Detects unterminated quotes and duplicate keys — used by Heroku, Go, and container logs.
Logfmt Parser
Parse logfmt key=value structured logs into typed fields. Inspect every key with its detected type, see a key-schema summary across records, and export to JSON, NDJSON, or CSV. Validates quotes and duplicate keys.
Markdown Link Extractor
Extract every link from a Markdown document — inline, reference, autolink, image, and bare URLs. Filter, dedupe, and export to CSV, JSON, or plain text.
Webhook Payload Builder
Build sample webhook JSON bodies online with nested fields, arrays, timestamps, and copy-ready request headers for Stripe-style or custom integrations.
Generator
Fake JSON Generator
Generate realistic fake JSON data instantly. Choose from templates (User, Product, Company) or build custom schemas with 30+ field types for API testing and prototyping.
JSON Schema Generator
Generate JSON Schema from example JSON online. Supports draft 2020-12, 2019-09, and draft-07 with format detection, required fields, strict objects, and instant copy or download.
Mock API Response Generator
Generate realistic mock REST API responses with status codes, headers, pagination and error shapes. Export as JSON, raw HTTP, MSW handler, or curl.
OpenAPI Generator
Generate OpenAPI 3.0 (Swagger) specifications online. Build API info, servers, paths, parameters, request bodies, and responses. Export as YAML or JSON instantly.
Postman Collection Generator
Generate a Postman Collection (v2.1) JSON file from endpoint definitions, auth settings, variables, and request bodies. Live preview, copy, and download. Free online tool.
Request Payload Builder
Build HTTP request payloads visually — JSON, form-data, URL-encoded, XML, GraphQL, and raw. Live preview with copy and download. Free online tool.