JavaScript

Create a recipe finder application using HTML5, CSS3, JavaScript and a food API. Build a visually appealing interface with food photography and intuitive navigation. Implement advanced search with filtering by ingredients, cuisine, diet restrictions, and preparation time. Add user ratings and reviews with star system. Include detailed nutritional information with visual indicators for calories, macros, and allergens. Support recipe saving and categorization into collections. Implement a meal planning calendar with drag-and-drop functionality. Add automatic serving size adjustment with quantity recalculation. Include cooking mode with step-by-step instructions and timers. Support offline access to saved recipes. Add social sharing functionality for favorite recipes.

Develop a web-based music player using HTML5, CSS3, and JavaScript with the Web Audio API. Create a modern interface with album art display and visualizations. Implement playlist management with drag-and-drop reordering. Add audio controls including play/pause, skip, seek, volume, and playback speed. Include shuffle and repeat modes with visual indicators. Support multiple audio formats with fallbacks. Implement a 10-band equalizer with presets. Add metadata extraction and display from audio files. Create a responsive design that works on all devices. Include keyboard shortcuts for playback control. Support background playback with media session API integration.

Build a Kanban project management board using HTML5, CSS3, and JavaScript. Create a flexible board layout with customizable columns (To Do, In Progress, Done, etc.). Implement drag-and-drop card movement between columns with smooth animations. Add card creation with rich text formatting, labels, due dates, and priority levels. Include user assignment with avatars and filtering by assignee. Implement card comments and activity history. Add board customization with column reordering and color themes. Support multiple boards with quick switching. Implement data persistence using localStorage with export/import functionality. Create a responsive design that adapts to different screen sizes. Add keyboard shortcuts for common actions.

Create an interactive drawing application using HTML5 Canvas, CSS3, and JavaScript. Build a clean interface with intuitive tool selection. Implement multiple drawing tools including brush, pencil, shapes, text, and eraser. Add color selection with recent colors, color picker, and palettes. Include layer support with opacity and blend mode options. Implement undo/redo functionality with history states. Add image import and export in multiple formats (PNG, JPG, SVG). Support canvas resizing and rotation. Implement zoom and pan navigation. Add selection tools with move, resize, and transform capabilities. Include keyboard shortcuts for common actions.

Create a habit tracking application using HTML5, CSS3, and JavaScript. Build a clean interface showing daily, weekly, and monthly views. Implement habit creation with frequency, reminders, and goals. Add streak tracking with visual indicators and milestone celebrations. Include detailed statistics and progress graphs. Support habit categories and tags for organization. Implement calendar integration for scheduling. Add data visualization showing patterns and trends. Create a responsive design for all devices. Include data export and backup functionality. Add gamification elements with achievements and rewards.

Develop a comprehensive flashcard study system using HTML5, CSS3, and JavaScript. Create an intuitive interface for card creation and review. Implement spaced repetition algorithm for optimized learning. Add support for text, images, and audio on cards. Include card categorization with decks and tags. Implement study sessions with performance tracking. Add self-assessment with confidence levels. Create statistics dashboard showing learning progress. Support import/export of card decks in standard formats. Implement keyboard shortcuts for efficient review. Add dark mode and customizable themes.

Develop a first-person shooter game using Three.js and JavaScript. Create detailed weapon models with realistic animations and effects. Implement precise hit detection and damage systems. Design multiple game levels with various environments and objectives. Add AI enemies with pathfinding and combat behaviors. Create particle effects for muzzle flashes, impacts, and explosions. Implement multiplayer mode with team-based objectives. Include weapon pickup and inventory system. Add sound effects for weapons, footsteps, and environment. Create detailed scoring and statistics tracking. Implement replay system for kill cams and match highlights.

Build an immersive 3D space exploration game using Three.js and JavaScript. Create a vast universe with procedurally generated planets, stars, and nebulae. Implement realistic spacecraft controls with Newtonian physics. Add detailed planet surfaces with terrain generation and atmospheric effects. Create space stations and outposts for trading and missions. Implement resource collection and cargo management systems. Add alien species with unique behaviors and interactions. Create wormhole travel effects between star systems. Include detailed ship customization and upgrade system. Implement mining and combat mechanics with weapon effects. Add mission system with story elements and objectives.

Build a mindfulness meditation timer using HTML5, CSS3, and JavaScript. Create a serene, distraction-free interface with nature-inspired design. Implement customizable meditation sessions with preparation, meditation, and rest intervals. Add ambient sound options including nature sounds, binaural beats, and white noise. Include guided meditation with customizable voice prompts. Implement interval bells with volume control and sound selection. Add session history and statistics tracking. Create visual breathing guides with animations. Support offline usage as a PWA. Include dark mode and multiple themes. Add session scheduling with reminders.

Develop a web-based image editor using HTML5 Canvas, CSS3, and JavaScript. Create a professional interface with tool panels and preview area. Implement basic adjustments including brightness, contrast, saturation, and sharpness. Add filters with customizable parameters and previews. Include cropping and resizing with aspect ratio controls. Implement text overlay with font selection and styling. Add shape drawing tools with fill and stroke options. Include layer management with blending modes. Support image export in multiple formats and qualities. Create a responsive design that adapts to screen size. Add undo/redo functionality with history states.

Build a comprehensive text analysis tool using HTML5, CSS3, and JavaScript. Create a clean interface with text input area and results dashboard. Implement word count, character count, and reading time estimation. Add readability scoring using multiple algorithms (Flesch-Kincaid, SMOG, Coleman-Liau). Include keyword density analysis with visualization. Implement sentiment analysis with emotional tone detection. Add grammar and spelling checking with suggestions. Include text comparison functionality for similarity detection. Support multiple languages with automatic detection. Add export functionality for analysis reports. Implement text formatting and cleaning tools.

Create an interactive Sudoku game using HTML5, CSS3, and JavaScript. Build a clean, accessible game board with intuitive controls. Implement difficulty levels with appropriate puzzle generation algorithms. Add hint system with multiple levels of assistance. Include note-taking functionality for candidate numbers. Implement timer with pause and resume. Add error checking with optional immediate feedback. Include game saving and loading with multiple slots. Create statistics tracking for wins, times, and difficulty levels. Add printable puzzle generation. Implement keyboard controls and accessibility features.

Build an interactive typing speed test using HTML5, CSS3, and JavaScript. Create a clean interface with text display and input area. Implement WPM and accuracy calculation in real-time. Add difficulty levels with appropriate text selection. Include error highlighting and correction tracking. Implement test history with performance graphs. Add custom test creation with text import. Include virtual keyboard display showing keypresses. Support multiple languages and keyboard layouts. Create a responsive design for all devices. Add competition mode with leaderboards.

Create a web-based PDF viewer using HTML5, CSS3, JavaScript and PDF.js. Build a clean interface with intuitive navigation controls. Implement page navigation with thumbnails and outline view. Add text search with result highlighting. Include zoom and fit-to-width/height controls. Implement text selection and copying. Add annotation tools including highlights, notes, and drawing. Support document rotation and presentation mode. Include print functionality with options. Create a responsive design that works on all devices. Add document properties and metadata display.

Develop a feature-rich chess game using HTML5, CSS3, and JavaScript. Create a realistic chessboard with proper piece rendering. Implement standard chess rules with move validation. Add move highlighting and piece movement animation. Include game clock with multiple time control options. Implement notation recording with PGN export. Add game analysis with move evaluation. Include AI opponent with adjustable difficulty levels. Support online play with WebRTC or WebSocket. Add opening book and common patterns recognition. Implement tournament mode with brackets and scoring.

Build a URL shortening service frontend using HTML5, CSS3, JavaScript and a backend API. Create a clean interface with prominent input field. Implement URL validation and sanitization. Add QR code generation for shortened URLs. Include click tracking and analytics dashboard. Support custom alias creation for URLs. Implement expiration date setting for links. Add password protection option for sensitive URLs. Include copy-to-clipboard functionality with confirmation. Create a responsive design for all devices. Add history of shortened URLs with search and filtering.

Create an exciting 3D racing game using Three.js and JavaScript. Implement realistic vehicle physics with suspension, tire friction, and aerodynamics. Create detailed car models with customizable paint and upgrades. Design multiple race tracks with varying terrain and obstacles. Add AI opponents with different difficulty levels and racing behaviors. Implement a split-screen multiplayer mode for local racing. Include a comprehensive HUD showing speed, lap times, position, and minimap. Create particle effects for tire smoke, engine effects, and weather. Add dynamic day/night cycle with realistic lighting. Implement race modes including time trial, championship, and elimination. Include replay system with multiple camera angles.

Develop a memory matching card game using HTML5, CSS3, and JavaScript. Create visually appealing card designs with flip animations. Implement difficulty levels with varying grid sizes and card counts. Add timer and move counter for scoring. Include sound effects for card flips and matches. Implement leaderboard with score persistence. Add theme selection with different card designs. Include multiplayer mode for competitive play. Create responsive layout that adapts to screen size. Add accessibility features for keyboard navigation. Implement progressive difficulty increase during gameplay.

Create an immersive multiplayer airplane combat game using Three.js, HTML5, CSS3, and JavaScript with WebSocket for real-time networking. Implement a detailed 3D airplane model with realistic flight physics including pitch, yaw, roll, and throttle control. Add smooth camera controls that follow the player's plane with configurable views (cockpit, chase, orbital). Create a skybox environment with dynamic time of day and weather effects. Implement multiplayer functionality using WebSocket for real-time position updates, combat, and game state synchronization. Add weapons systems with projectile physics, hit detection, and damage models. Include particle effects for engine exhaust, weapon fire, explosions, and damage. Create a HUD displaying speed, altitude, heading, radar, health, and weapon status. Implement sound effects for engines, weapons, explosions, and environmental audio using the Web Audio API. Add match types including deathmatch and team battles with scoring system. Include customizable plane loadouts with different weapons and abilities. Create a lobby system for match creation and team assignment. Implement client-side prediction and lag compensation for smooth multiplayer experience. Add mini-map showing player positions and objectives. Include replay system for match playback and highlight creation. Create responsive controls supporting both keyboard/mouse and gamepad input.