Code Tools

100% Free No Sign-up 43 Code Tools

Streamline your development workflow with our comprehensive code optimization toolkit. Supporting 15+ programming languages including JavaScript, Python, Java, C++, and TypeScript, our tools help you format messy code, minify for production, validate syntax, and convert between data formats. Whether you're debugging APIs with JSON formatters or optimizing website performance with CSS/JS minifiers, we provide professional-grade tools that work instantly in your browser.

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C# Code Formatter

Format, beautify and validate C# code instantly. Free online C# formatter with syntax highlighting, Microsoft coding standards, and comprehensive error detection.

C++ Code Formatter

Format, beautify and validate C++ code instantly. Free online C++ formatter with syntax highlighting, modern C++ standards, and comprehensive style options.

Code Minifier & Beautifier

Minify or beautify JavaScript, HTML, and CSS code with syntax highlighting and optimization. Essential for web performance and production deployment.

CSS Feature Availability Matrix

Interactive matrix showing CSS features across versions with comprehensive browser compatibility. View feature timelines, code examples, fallbacks, and migration guidance.

CSS Minifier and Beautifier

Optimize CSS files for faster loading by removing whitespace and comments. Essential for web performance and bandwidth reduction.

CSS Selector Tester

Test CSS selectors against HTML code with live highlighting and specificity analysis. Perfect for debugging CSS and learning advanced selector techniques.

CSV to JSON / JSON to CSV Converter

Convert data between CSV and JSON formats with client-side processing and custom formatting options for data migration and integration.

DAX Formula Generator & SQL Translator

Convert SQL queries to DAX formulas and build optimized expressions for Power BI and Analysis Services with performance tips.

HTML to JSX Converter

Convert HTML code to JSX syntax for React development with automatic transformation including className, htmlFor, and style objects.

Java Code Formatter

Format, beautify and validate Java code instantly. Free online Java formatter with syntax highlighting, Oracle coding standards, and Spring Framework support.

Java Feature Availability Matrix

Interactive matrix showing Java features across versions 8-21+ with LTS focus. View feature timelines, code examples, migration paths, and enterprise adoption guidance.

JavaScript Code Formatter

Format and minify JavaScript code instantly. Free online JS formatter with syntax highlighting, error detection, and beautification options.

JavaScript ECMAScript Feature Matrix

Interactive matrix showing JavaScript features across ES5-ES2024 with browser compatibility. View feature timelines, code examples, Node.js support, and migration guidance.

JavaScript Minifier & Beautifier

Optimize JavaScript files with advanced compression levels and real-time statistics. Minify for production or beautify for development with TypeScript support.

JSON <> YAML Converter

Convert data between JSON and YAML formats with syntax validation and error detection for configuration management and DevOps workflows.

JSON Formatter

Format and beautify raw JSON code with syntax highlighting, error detection, and collapsible structures. Essential for debugging API responses and data analysis.

JSON Formatter & Validator Pro

Format and validate JSON code with syntax highlighting, error detection, and beautification. Essential for API development and data structure validation.

Kotlin Code Formatter

Format, beautify and validate Kotlin code instantly. Free online Kotlin formatter with syntax highlighting, JetBrains coding standards, and Android development support.

Kotlin Data Class Generator

Generate Kotlin data classes from JSON, CSV or database schemas. Supports nullable types, default values, and annotations like @SerializedName and @Entity.

Number Tools Suite

Comprehensive number analysis and conversion toolkit supporting multiple number systems and statistical calculations with client-side processing.

PHP Class Generator

Generate complete PHP classes with properties, getters/setters, constructors, and design patterns. Includes namespace support, type hints, and PHPDoc generation.

PHP CRUD Generator

Generate complete PHP CRUD operations for database models. Create controllers, models, validation rules, and REST API endpoints with PDO, Eloquent, and custom templates.

PHP Feature Availability Matrix

Interactive matrix showing PHP features across versions 7.0-8.3. View feature timelines, code examples, alternatives for older versions, and performance impact notes.

PHP Formatter

Format and beautify PHP code instantly. Free online PHP formatter with syntax highlighting, PSR standards, error detection, and customizable formatting options.

PHP Version Compatibility Checker

Analyze PHP code compatibility across versions 7.0-8.3. Detect deprecated functions, breaking changes, and get migration recommendations instantly.

Python Code Formatter

Format, beautify and validate Python code instantly. Free online Python formatter with syntax highlighting, PEP 8 compliance checking, and error detection.

Python Data Validation Schema Generator

Generate Pydantic models and dataclasses from JSON/CSV data automatically. Create type-safe Python schemas with validation rules, optional fields, and nested structures for data engineering.

Python Docstring Generator

Generate professional Python docstrings automatically. Supports Google, NumPy, and Sphinx formats with intelligent parameter detection and type hints for better code documentation.

Python Feature Availability Matrix

Interactive matrix showing Python features across versions 2.7-3.12. View feature timelines, code examples, migration tips, and Python 2.7 to 3.x upgrade guidance.

Python Requirements.txt Generator

Generate professional requirements.txt files for Python projects. Add packages with version pinning, development dependencies, and proper formatting for reproducible environments.

Regex Tester

Test regular expressions with live feedback and real-time matching. Comprehensive tool with match highlighting, group extraction, and common pattern library.

Ruby Code Formatter

Format, beautify and validate Ruby code instantly. Free online Ruby formatter with syntax highlighting, Ruby style guide compliance, and Rails framework support.

SQL Beautifier & Validator

Format messy SQL code into clean, readable queries with consistent indentation. Support for multiple SQL dialects and professional database development.

SQL Formatter & Beautifier

Format and beautify SQL queries with syntax highlighting. Professional SQL formatter with support for multiple dialects and customizable formatting options.

Swift Code Formatter

Format, beautify and validate Swift code instantly. Free online Swift formatter with syntax highlighting, Apple coding standards, and iOS/macOS development support.

SwiftUI Component Generator

Generate SwiftUI components instantly. Free online tool for iOS developers with customizable properties, live preview, and Swift code export.

Swipe Challenge Game

Test swipe reflexes with direction-based challenges and scoring system. Perfect for testing touch responsiveness and mobile device capabilities.

Table to JSON Converter

Convert HTML tables or CSV data into structured JSON format with customizable transformation and instant preview for API development.

Touch Gesture Tester

Test comprehensive touch gestures including swipe, tap, pinch, and rotate with real-time visual feedback for mobile app development.

TypeScript Code Formatter

Format, beautify and validate TypeScript code instantly. Free online TypeScript formatter with syntax highlighting, type checking, and modern ESLint-style formatting.

TypeScript Feature Availability Matrix

Interactive matrix showing TypeScript features across versions 1.0-5.x. View type system evolution, code examples, JavaScript migration paths, and framework compatibility.

Vue JSON Editor

Edit, validate, and format JSON using responsive Vue-powered interface with syntax highlighting and real-time validation for complex data structures.

YAML to Properties Converter

Convert YAML configuration files to Java .properties format with real-time conversion and validation for Spring Boot development.

Frequently Asked Questions

Absolutely. All code processing happens directly in your browser using JavaScript. Your code never leaves your device or gets transmitted to any server, ensuring complete privacy and security.

We support 15+ languages including JavaScript, TypeScript, Python, Java, C++, C#, Kotlin, PHP, CSS, HTML, SQL, JSON, YAML, and more. Each formatter follows the official style guides for that language.

Yes! Most formatters offer options like indentation size (2 or 4 spaces), bracket style, quote preferences, and other language-specific settings. Some tools also support popular style guides like Prettier or PEP8.

Minifying removes unnecessary characters (spaces, comments) to reduce file size for production. Beautifying adds proper indentation and formatting to make code readable for development. Both preserve functionality.

Yes, we offer converters for CSV↔JSON, JSON↔YAML, HTML→JSX, YAML→Properties, and more. These maintain data integrity while adapting to the target format's syntax requirements.

Yes, our tools can handle large code files efficiently since processing happens client-side. Performance depends on your browser and device capabilities, but files up to several MB are typically no problem.

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