Accelerate your development workflow with our comprehensive toolkit for modern programmers. From API testing and GraphQL query building to WebRTC debugging and Docker configuration, we provide professional-grade tools that work directly in your browser. Whether you're building PWAs, testing cloud costs, generating database queries, or debugging HTTP headers, our tools help you ship better code faster without expensive software licenses.
Improve prompts for ChatGPT and LLMs with comprehensive analysis of clarity, structure, and effectiveness using client-side processing.
Build and test REST API requests with user-friendly interface for headers, parameters, authentication, and response validation.
Generate realistic mock API responses instantly. Create REST, GraphQL, and webhook test data with customizable templates for e-commerce, social media, IoT, and financial applications.
Detect and analyze all supported browser APIs, HTML5 features, CSS capabilities, and web technologies. Free online browser compatibility testing tool with detailed feature reports.
Analyze website performance with Core Web Vitals, resource waterfall, memory profiling, and optimization recommendations.
Convert JSON to C# models instantly. Free online tool with nullable support, attributes, nested objects, and modern C# syntax for .NET development.
Convert JSON to C++ models instantly. Free online tool with modern C++ syntax, STL containers, smart pointers, and header/source file generation.
Compare costs across AWS, Azure, and Google Cloud for compute, storage, and networking with real-time calculations and cost analysis.
Build cron expressions interactively with live preview and human-readable descriptions. Essential for automated task configuration and system administration.
Convert CSV and Excel files to optimized SQL insert statements. Automatic data type detection, NULL handling, and batch processing with error recovery.
Build cURL commands with visual interface including URL, headers, HTTP methods, and request body without memorizing complex syntax.
Generate ETL mapping documents automatically by analyzing source and target schemas. Intelligent field matching with naming patterns, datatypes, and business rules.
Build comprehensive data validation queries for migration testing. Generate checksums, row counts, and integrity checks between source and target databases.
Compare database schemas and generate migration scripts. Analyze differences between SQL structures, tables, and generate incremental migration commands.
Generate interactive ERD diagrams from SQL CREATE TABLE statements. Visualize database relationships, export to SVG/PNG, and create documentation instantly.
Perform comprehensive DNS lookups for A, AAAA, MX, CNAME, and TXT records using secure DNS over HTTPS for network troubleshooting.
Generate Docker Compose YAML files with service templates, environment variables, and networking. Free online tool for developers to create production-ready Docker configurations.
Visually build and preview GraphQL queries with schema exploration and live query execution. Essential for GraphQL API development and learning.
Analyze HTTP headers from any URL with security auditing, performance insights, and debugging capabilities for web development.
Detect and analyze JavaScript memory leaks with heap dump analysis. Identify detached DOM trees, retained objects, and common leak patterns with timeline visualization.
Analyze and visualize workflow bottlenecks in your Kanban process. Free tool for identifying constraints, cycle time analysis, and throughput optimization.
Simulate and optimize lazy loading strategies for images, videos, and content. Visualize performance impact with real-time metrics and loading patterns.
View, manage, and export browser localStorage data with comprehensive editing and debugging capabilities. Essential for web development and application debugging.
Detect and analyze browser memory leaks in JavaScript applications. Free online tool for memory profiling, leak detection, and performance optimization.
Generate configuration files for micro-frontend architectures. Create Module Federation configs, import maps, and routing setups for scalable applications.
Create and visualize neural network architectures with interactive drag-and-drop layers. Design AI models visually with real-time parameter calculations.
Generate and optimize NoSQL queries for MongoDB, CosmosDB, DynamoDB with visual query builder and performance optimization tips.
Create a Web App Manifest file to make your site installable. Configure icons, display modes, and colors for a native app-like experience.
Generate Python Pandas code visually. Build data transformations with drag-drop interface, optimize method chaining, and calculate memory usage for DataFrames.
Comprehensive regex tester with built-in pattern library covering email, URL, phone validation with live testing and educational support.
Build and deploy serverless functions visually. Free tool for generating AWS Lambda and Azure Functions with boilerplate code, configurations, and deployment scripts.
Generate SHACL shapes from RDF data examples automatically. Free online tool creates validation constraints from your RDF data in Turtle, JSON-LD, or RDF/XML format.
Validate RDF data against SHACL shapes online. Free SHACL validator with Turtle, JSON-LD, and RDF/XML support for semantic web development.
Build Excel and Google Sheets formulas with an interactive builder. Comprehensive guide for all formula types with examples.
Convert CSV, JSON, or plain text to SQL INSERT statements with multiple database dialect support for efficient data migration.
Build and format SQL queries visually with drag-drop interface. Features syntax highlighting, query optimization tips, and multi-database support.
Convert database schemas between MySQL, PostgreSQL, SQL Server, and Oracle. Automatic datatype mapping, constraint conversion, and index optimization.
Upload SQL schema and generate Entity-Relationship Diagrams using d3-graphviz for database visualization and documentation.
Convert JSON to Swift models instantly. Free online tool with Codable support, nested objects, optional detection, and camelCase conversion for iOS development.
Convert JSON to TypeScript models instantly. Free online tool with interfaces, types, optional properties, union types, and modern TypeScript syntax.
Build complex SQL queries visually with drag-and-drop interface and automatic joins for database analysis and education.
Create custom web components with Shadow DOM support, properties, and events. Generate code in ES6, ES5, or TypeScript for modern web development.
Test browser-based push notifications with custom title, body, and icon. Essential for web app development and user engagement features.
Test and explore Web Share API capabilities with interactive demos for sharing text, URLs, and files using native device functionality.
Explore WebAssembly capabilities with performance comparisons and interactive demos. Test WASM vs JavaScript performance and browser compatibility.
Benchmark and analyze WebAssembly modules performance. Compare WASM execution speed against JavaScript, measure memory usage, and optimize your WebAssembly applications.
Test webhooks instantly with unique URLs. Monitor incoming requests, headers, and payloads in real-time. Perfect for API development and debugging.
Test your webcam, microphone, and network connectivity for WebRTC issues. Troubleshoot video calls and browser permissions.
Real-time WebSocket message inspection, formatting, and replay. Monitor live connections, analyze frame data, and debug WebSocket communication instantly.
Master professional API testing and HTTP analysis with comprehensive tools for request building, aut...
Master scientific calculations and unit conversions with comprehensive tools for engineering, academ...
Master mobile-first development with comprehensive touch interface testing, responsive design tools,...
Discover the most powerful JSON tools for modern development workflows. From formatting and validati...
Professional code debugging and development solutions for developers.