Browser-native tools for working engineers
Format JSON, check SQL syntax, validate google-services.json, and convert schemas without sending data to a server. Built for debugging, not for collecting signups.
These pages match real Search Console demand on ByteJSON: SQL checking, Firebase config, Drizzle schemas, and port checks. Use them first; browse the full catalog below when you need something narrower.
Validate SQL online with dialect-aware checks and line-numbered errors.
Open toolParse and fix Firebase Android config files before you build.
Open toolGenerate Drizzle ORM table definitions from sample JSON.
Open toolCheck open ports from your browser for local troubleshooting.
Open toolOne job: help developers inspect, validate, and transform data formats and configs while the payload stays on their machine. Not a tax portal. Not a template farm of one-line converters.
Format, validate, and convert JSON for API responses, config files, and schema generation.
Firebase google-services.json, MIME types, OpenAPI-related helpers, and other files that break mobile and backend setups.
Tools are designed to run client-side so secrets, customer payloads, and production SQL do not need to leave your machine.
Long-form guides for errors and workflows, not keyword shells
Define agent tool arguments, validate with Zod, and fail closed before side effects.
Schema, Zod, MCP tool JSON, and how to validate model output before side effects.
application/json, +json suffixes, charset traps, and Content-Type bugs.
JSON, encoding, database, network, and conversion utilities — finance calculators are intentionally not promoted here
JSON, SQL, and data transformation utilities
Format and beautify JSON
Validate JSON syntax
Compare two JSON objects
Auto-fix JSON errors
Escape/unescape JSON strings
Flatten nested JSON objects
Query JSON with JSONPath
Apply RFC 6902 & RFC 7396 patch operations
Generate JSON Schema from sample data
Compress JSON
Convert to CSV
Convert to XML
Convert JSON to code classes
Generate TypeScript interfaces and Zod schemas
Generate Zod validation schema from JSON
Validate JSON data against a schema
Validate JSON with AJV (Draft-07 & 2020-12)
Validate JSON5 syntax
Validate TOML configuration
Validate YAML syntax and structure
Validate XML against XSD schemas
Check syntax, duplicates & missing keys
Normalize YAML indentation and fix spacing
Format, validate, and convert JSON Lines
Format, validate, and preview CSV files
Visual SQL generator
Generate SQL from JSON
JSON/YAML/TOML/XML/CSV
Convert JSON to Markdown tables
Encoding, decoding and conversion utilities
Encode to Base64
Decode Base64
Convert Base64 to Hex and back
Decode/encode Base32
Encode/decode Base85 (Ascii85) with Adobe and RFC 1924 variants
Generate HMAC signatures
Convert PEM keys to JWK and back
Encode URLs
Decode URLs
Convert entities
Convert timestamps
Convert XML documents to JSON format
Convert .env to JSON
Convert TOML to JSON and back
Convert YAML to .env
Convert .env to YAML
Convert JSON to .env and back
Convert JSON to Docker .env, Kubernetes ConfigMap, and shell export formats
Convert JSON to INI and back
Convert INI to YAML and back
Convert JSON to Java .properties and back
Convert TOML to YAML and back
Convert YAML to TOML configuration format
Binary/hex/decimal
Convert units
Visual editor to generate Markdown tables
Convert HTML to clean Markdown
Convert CSV to JSON Lines and back
Convert CSV data to Markdown table format
Convert JSON to URL query string and back
Convert JSON to Terraform HCL and back
Convert YAML to Terraform variables.tf and terraform.tfvars
Generate Avro schema from JSON for Kafka and Hadoop
Generate CUE constraint definitions from JSON for validation
Generate proto3 schema from JSON for gRPC and microservices
Convert Protocol Buffer .proto definitions to TypeScript interfaces and types with proper type mapping, nested messages, and enums
Convert JSON data to FlatBuffers .fbs schema definitions with tables, structs, enums, and nested types
Convert JSON data to Apache Thrift IDL struct definitions with proper type mapping, nested structs, and optional fields
Generate Python dataclass, Pydantic, or TypedDict from JSON
Convert SQL CREATE TABLE to TypeScript interfaces
Generate BigQuery table schema from JSON for Google Cloud
Generate Drizzle ORM tables from JSON — pgTable, serial IDs, $inferSelect
Generate Prisma schema from JSON for Prisma ORM
Generate Yup validation schema from JSON for React forms
Generate Zod schemas with custom validation rules like .min(), .max(), .email(), .url()
Convert SQL CREATE TABLE to Drizzle ORM schema definitions
Convert SQL CREATE TABLE to TypeORM entity definitions
Convert SQL CREATE TABLE to Kysely type-safe Database interface definitions
Convert SQL CREATE TABLE to Prisma schema with models and relations
Convert SQL CREATE TABLE to Prisma schema with automatic relation generation
Convert SQL CREATE TABLE to Sequelize model definitions
Convert SQL CREATE TABLE to Knex migration files with up and down functions
Convert SQL CREATE TABLE to Objection.js ORM model classes with TypeScript types and JSON schema
Convert SQL CREATE TABLE to Rust Diesel ORM model structs with derive macros and associations
Convert SQL CREATE TABLE to Sails.js Waterline model definitions with type mapping, validations, and associations
Convert SQL CREATE TABLE to Python Tortoise ORM async model classes with field mapping and Pydantic schemas
Convert SQL CREATE TABLE to Kotlin Exposed ORM table object definitions with references and constraints
Convert SQL CREATE TABLE to TypeScript interfaces for pg-promise with Database schema and helper functions
Convert SQL CREATE TABLE to Android Room Entity Kotlin data classes with annotations, DAOs, and TypeConverters
Convert SQL CREATE TABLE to Haskell Persistent entity definitions with type mapping, Maybe for nullable, and Yesod integration
Convert SQL CREATE TABLE to Python SQLModel classes with Pydantic validation and SQLAlchemy support
Convert SQL CREATE TABLE to TypeScript interfaces for better-sqlite3 with Database schema and helper functions
Convert SQL CREATE TABLE to MikroORM entity definitions
Convert SQL CREATE TABLE to Mongoose schema definitions for MongoDB
Convert SQL CREATE TABLE to Go GORM model struct definitions
Convert SQL CREATE TABLE to Go Ent schema definitions (entgo.io/ent)
Convert SQL CREATE TABLE to MyBatis XML mapper, Java Entity, and Mapper interface
Convert SQL CREATE TABLE to jOOQ Java code with Table and Field definitions
Encode JSON to MessagePack binary format and decode back
Convert YAML configuration to JSON Schema for validation
Generate GraphQL schema definitions from JSON
Convert YAML to Kubernetes Deployment, Service, and ConfigMap manifests
Generate GitHub Actions CI/CD workflows from YAML config
Convert regex patterns to JavaScript, Python, Go, Java, and more
Convert standard cron expressions to Quartz cron format
Generate io-ts runtime type definitions from JSON
Generate TypeScript classes with class-validator decorators
Generate TypeBox JSON Schema definitions from JSON
Generate Valibot v1 validation schemas from JSON with type inference
Generate Pydantic v2 BaseModel classes from JSON with type inference
Generate Pydantic v2 BaseModel classes with Field constraints and @field_validator decorators
Generate Java POJO classes from JSON with Jackson annotations
Convert TypeScript interfaces and types to JSON Schema for validation
Generate TypeScript Axios client with typed interfaces from OpenAPI specs
Generate TypeScript SDK with fetch API and typed interfaces from OpenAPI specs
Convert OpenAPI/Swagger specs to Postman Collection v2.1 format
Generate Apollo Server resolvers from GraphQL schema SDL
Generate TypeScript resolver types and stubs from GraphQL schema SDL
Generate Go struct definitions from JSON with json tags and nested structs
Generate Rust struct definitions with serde attributes from JSON
Generate C struct definitions with typedef from JSON, supporting static/dynamic memory modes and json-c library integration
Generate C++17 struct definitions from JSON with nlohmann/json serialization, std::optional, std::vector, and nested struct support
Convert SQL CREATE TABLE to GraphQL schema SDL and resolver stubs with CRUD operations
Generate Elixir defmodule with defstruct and @type t specifications from JSON
Generate Elixir Ecto schema definitions with changeset functions from JSON
Convert JSON to R list, data.frame, or tibble definitions with automatic type inference
Convert JSON to Lua table definitions with proper syntax, type mapping, and nested structure support
Generate Pandas DataFrame Python code with dtype specifications from JSON
Generate TypeScript interfaces with optional fields and readonly modifiers from JSON
Generate Crystal struct definitions with property type annotations from JSON
Convert JSON to Clojure defrecord definitions or map literals with keyword keys
Generate Haskell data type definitions with automatic type inference from JSON
Generate PureScript newtype and record definitions with Maybe types and nested record support from JSON
Generate ReScript type definitions with option types and nested record support from JSON
Generate F# record type definitions from JSON with automatic type inference
Generate OCaml type definitions from JSON with automatic type inference
Generate Gleam custom type definitions with proper type inference from JSON
Generate PHP classes with typed properties, constructors, and fromJson/toJson methods from JSON
Generate Ruby classes with attr_accessor, Struct, ActiveModel, or Dry-Struct support from JSON
Generate Perl Moose or Moo class definitions with type constraints from JSON
Generate Julia struct definitions from JSON with JSON3.jl and StructTypes.jl type annotations
Generate Dart classes with null safety, fromJson factory, toJson method, copyWith, and freezed support from JSON
Generate Tailwind CSS configuration from JSON design tokens with JS/TS output support
Generate Effect Schema (@effect/schema) Schema.Struct definitions with type inference from JSON
Generate Scala case classes with Play JSON Format or Circe Encoder/Decoder instances from JSON
Convert JSON data to Amazon Ion text format for AWS QLDB, DynamoDB, and Ion-based systems
Generate Angular TypeScript interfaces and Injectable service with HttpClient CRUD methods
Convert SQL INSERT statements to Prisma Client seed scripts in TypeScript
Convert SQL CREATE TABLE to SQLAlchemy ORM model definitions with Column types and relationships
Convert OpenAPI/Swagger specifications to clean Markdown API documentation
Convert JSON data to LaTeX tables and description lists with special character escaping
Convert JSON data to Redis CLI commands with smart type detection for SET, HSET, RPUSH, ZADD
Convert JSON data to GraphQL query or mutation strings with nested field selection
Convert SQL CREATE TABLE to Entity Framework Core C# entity classes with data annotations
Generate Python HTTP client classes from OpenAPI/Swagger specs using requests library
Generate React Apollo hooks (useQuery, useMutation, useLazyQuery) from GraphQL schema SDL
Convert JSON arrays to CSV format with nested object flattening and Excel UTF-8 BOM support
Convert Kubernetes YAML manifests to Helm chart templates with values extraction
Convert SQL CREATE TABLE to Hasura GraphQL Engine metadata with relationships and permissions
Convert GraphQL schema SDL to Prisma schema with models, relations, and datasource config
Convert Markdown to print-ready HTML with professional CSS and PDF export support
Generate GraphQL fragments with scalar fields and nested fragment spreads from GraphQL schema SDL
Generate Zig struct definitions from JSON with std.json and serde.zig support, optional types (?T), and nested structs
Generate ArkTS (HarmonyOS) interface or class definitions with reactive decorators from JSON
Generate V language struct definitions with option types and json.decode support from JSON
Generate Nim object type definitions with JSON serialization and distinct types from JSON
Generate C# classes with System.Text.Json attributes from JSON
Generate Django model classes with field types and Meta options from JSON
Generate Swift Codable structs with CodingKeys from JSON
Generate Kotlin data classes with kotlinx.serialization from JSON
Generate Joi validation schemas from JSON for Node.js and Hapi
Convert CSV data to SQL INSERT statements with automatic type detection
Convert SQL CREATE TABLE to sqlc query annotations and Go type definitions
Generate MobX State Tree models with types and actions from JSON
Code beautifiers and formatters
Convert text case styles
Generate URL-friendly slugs
Format SQL
Format XML
Format CSS
Format JavaScript
Format Python
Lint and validate Markdown
MD to HTML
Convert YAML
Network diagnostics and API tools
Find IP info
Check DNS
Domain info
Test connectivity
Check open ports on a host or IP
Convert to code
Decode SSL certs
Test WS connections
Reference all HTTP codes
Parse & validate Firebase Android google-services.json
Parse UA strings
Find MIME types
Image conversion, manipulation, and processing utilities
Convert SVG to PNG with custom size
Convert HEIC to JPG/PNG
Remove metadata from images
Convert WebP/AVIF/PNG/JPG
Extract colors from images
Generate ASCII from images
Convert images to Base64
Optimize SVG files
Generate code screenshots
CSS generators and layout tools
Server utilities and code generators
Visual SQL JOIN query builder
Test regex
Explain regex patterns
Generate regex from text
Generate cron
Decode JWT
Generate hashes
Generate UUIDs (v4/v7)
Generate fake data
Compare algorithm complexity
Compose generator
Generate Dockerfiles for Node.js, Python, Go & more
Build HEALTHCHECK commands for Dockerfile & compose
Generate Nginx server block, proxy & SSL configs
Validate GraphQL SDL schemas online
Check Dockerfile for best practices & security
Validate NGINX config syntax & security
Validate & format Python requirements.txt files
Calculate semantic version bumps with npm ranges
Generate secure keys
Build GraphQL queries
Generate OpenAPI 3.0 specs from JSON
Generate SQL CREATE TABLE statements for MySQL, PostgreSQL, SQLite
SQL validator for MySQL, PostgreSQL, SQLite
Miscellaneous utilities