Free Online Code & Data Converters
Convert between data formats instantly: JSON to YAML, XML to JSON, TypeScript to JavaScript, and 100+ more converters. Free, no signup.
120 tools available
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates
Color Converter
Convert colors between HEX, RGB, HSL formats with preview
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal
JSON โ YAML Converter
Convert JSON to YAML and YAML to JSON online instantly
CSV โ JSON Converter
Convert JSON to CSV and CSV to JSON online for free
IP Subnet Calculator
Calculate subnet mask, network, broadcast, and host range
Text โ Binary Converter
Convert text to binary and binary to text
HTML Table Generator
Convert CSV or JSON to HTML table markup
JSON to TypeScript
Convert JSON to TypeScript interfaces and types online
HTML to JSX
Convert HTML markup to JSX for React components
JSON to Go
Convert JSON to Go struct definitions online
JSON to Go Struct Converter
Generate Go struct definitions from JSON with customizable options
SVG to JSX/React
Convert SVG markup to JSX React components
TypeScript to JavaScript
Compile TypeScript code to plain JavaScript
JSON to GraphQL
Convert JSON data to GraphQL schema definitions
JSON to Java Class
Convert JSON data to Java class definitions
JSON to Kotlin
Convert JSON data to Kotlin data classes
JSON to Python
Convert JSON to Python dataclass, TypedDict, or Pydantic model
JSON to C#
Convert JSON data to C# class definitions
Markdown to HTML
Convert Markdown text to HTML markup
HTML to Markdown
Convert HTML markup to Markdown text
TOML to YAML / YAML to TOML
Convert between TOML and YAML configuration formats
JSON to Zod Schema
Convert JSON data to Zod validation schemas
JSON to JSON Schema
Convert JSON to JSON Schema โ generate schema from JSON instantly
GraphQL to TypeScript
Convert GraphQL schema to TypeScript types
JSON to Rust Struct
Convert JSON data to Rust struct definitions with serde
XML to JSON Converter
Convert XML to JSON online โ free XML to JSON converter
JSON to Dart
Convert JSON to Dart/Flutter classes
JSON to Protobuf
Convert JSON to protobuf
SQL to Prisma Schema
Convert SQL CREATE TABLE to Prisma schema models
Text to PDF Converter
Convert plain text to PDF documents with custom formatting options
Hex to Decimal Converter
Convert between hexadecimal, decimal, and binary number systems
YAML โ JSON Converter
Convert between YAML and JSON formats with real-time preview
Hex to RGB Converter
Convert between hex color codes and RGB values with color preview
Octal Decimal Converter
Convert between octal and decimal number systems with binary and hex output
Roman Numeral Converter
Convert between numbers and Roman numerals with date converter
Byte Converter
Convert between bytes, KB, MB, GB, TB and other file size units
ASCII Text Converter
Convert between ASCII codes and text characters with reference table
Hex to Binary Converter
Convert between hexadecimal and binary number systems
Fraction Decimal Converter
Convert between fractions and decimal numbers with simplification
Scientific Notation Converter
Convert between scientific notation and standard numbers
IP to Binary Converter
Convert IP addresses to binary and binary to IP format
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates
Base64 to Hex Converter
Convert Base64 encoded data to hexadecimal format
JSON to Table
Convert JSON data to an interactive, sortable HTML table with search, filter, and CSV export
Base64 Image Converter
Convert images to Base64 strings and Base64 back to images with drag & drop
JSON to CSV Converter
Convert JSON arrays to CSV with customizable delimiters and options
Image Compressor
Compress images online for free with adjustable quality. Supports JPEG, PNG, and WebP output
Yaml To Json
Yaml To Json - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
SVG to PNG Converter
Convert SVG files to PNG images with custom dimensions and background
Json To Yaml
Json To Yaml - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Html To Markdown
Html To Markdown - Free online tool for HTML processing. Fast, secure, and easy to use.
Csv To Json
Csv To Json - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Json To Xml
Json To Xml - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Curl To Javascript
Curl To Javascript - Free online tool for URL encoding/decoding. Fast, secure, and easy to use.
Js To Typescript
Js To Typescript - Free online tool for IP address calculation. Fast, secure, and easy to use.
Json To Csv
Json To Csv - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Json To Zod
Json To Zod - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Ts To Js
Ts To Js - Free online tool for data processing. Fast, secure, and easy to use.
Base64 Image Decoder
Convert Base64 image data back to image files
JSON to XML Converter
Convert JSON to XML
Regex Builder
Regex Builder - Free online tool for Regular expression testing. Fast, secure, and easy to use.
Javascript Event Loop Visualizer
Javascript Event Loop Visualizer - Free online tool for IP address calculation. Fast, secure, and easy to use.
ASCII Art Generator
Convert text to ASCII art with various fonts and styles
Yaml To Json
Yaml To Json - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Xml To Json
Xml To Json - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Svg To Css
Svg To Css - Free online tool for CSS styling and formatting. Fast, secure, and easy to use.
Json To Yaml
Json To Yaml - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Yaml To Json
Yaml To Json - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Docker Run To Compose
Docker Run To Compose - Free online tool for Docker configuration. Fast, secure, and easy to use.
Typescript Playground
Typescript Playground - Free online tool for IP address calculation. Fast, secure, and easy to use.
Svg To React
Svg To React - Free online tool for SVG processing. Fast, secure, and easy to use.
Xml Formatter
Xml Formatter - Free online tool for XML processing. Fast, secure, and easy to use.
Html To React
Html To React - Free online tool for HTML processing. Fast, secure, and easy to use.
Csv To Json
Csv To Json - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Json To Typescript
Json To Typescript - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Markdown To Html
Markdown To Html - Free online tool for HTML processing. Fast, secure, and easy to use.
Typescript To Javascript
Typescript To Javascript - Free online tool for IP address calculation. Fast, secure, and easy to use.
ASCII Table Generator
Generate ASCII tables from CSV, JSON, or tabular data
Number Base
Number Base - Free online tool for Number base conversion. Fast, secure, and easy to use.
Markdown Link Checker
Markdown Link Checker - Free online tool for Markdown processing. Fast, secure, and easy to use.
String Utilities
String Utilities - Free online tool for String manipulation. Fast, secure, and easy to use.
Json To Mysql Schema
Json To Mysql Schema - Free online tool for JSON data processing and conversion. Fast, secure, and easy to use.
Svg To Png
Svg To Png - Free online tool for SVG processing. Fast, secure, and easy to use.
Cron to Human Readable
Convert cron expressions to plain English
TOML โ JSON Converter
Convert between TOML and JSON formats
JS to TSX Converter
Convert JavaScript and JSX files to TypeScript TSX with automatic type annotations and React type inference.
Epoch Converter
Convert between Unix epoch timestamps and human-readable dates
JSON to Swift
Convert JSON to Swift Codable structs
JSON to PHP
Convert JSON to PHP arrays/classes
HTML to Pug
Convert HTML to Pug (Jade) templates
YAML to TOML
Convert between YAML and TOML formats
TypeScript to Zod
Convert TypeScript types to Zod schemas
SQL to MongoDB
Convert SQL queries to MongoDB
.env to JSON Converter
Convert environment variable files to JSON format
JSON to GraphQL Schema
Convert JSON to GraphQL types
OpenAPI to TypeScript
Convert OpenAPI schemas to TypeScript
JSON to SQL
Convert JSON data to SQL INSERT statements
Hex to Text
Convert between hex strings and text
JSON to Scala
Convert JSON to Scala case classes
ASCII to Hex
Convert between ASCII text and hex
Binary to Text
Convert between binary and text
Text to Morse Code
Convert text to Morse code and back
XML to CSV
Convert XML data to CSV format
PNG to JPG
Convert images between PNG and JPG
cURL to Code Converter
Convert cURL commands to code
JSON to Rust Struct
Convert JSON data to Rust struct definitions with serde support
TOML to YAML Converter
Convert TOML configuration files to YAML format
SVG to CSS Converter
Convert SVG to CSS background-image data URI
JSON to Protobuf
Convert JSON to Protocol Buffer definitions
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates
SQL to JSON Schema
Convert SQL CREATE TABLE to JSON schema
SVG Editor
Edit and preview SVG code
Image Resizer
Resize images online for free with custom dimensions
Image Cropper
Crop images online for free with custom areas
WebP Converter
Convert images to and from WebP format
HTML to Text Converter
Convert HTML to plain text
TOML โ JSON Converter
Convert TOML to JSON and JSON to TOML online instantly
INI โ JSON Converter
Convert INI config files to JSON and JSON to INI online
Plist โ JSON Converter
Convert Apple Property List (plist) XML to JSON and back
About Free Online Code & Data Converters
DevToolBox provides a collection of free online developer tools to help you efficiently complete everyday development tasks. This category includes 120 tools, all running directly in your browser with no installation required. Your data stays on your device and is never sent to our servers, ensuring complete privacy.
All tools are completely free with no registration or login required. Available in 15 languages for developers worldwide.