Battle Arena
Choose your challenge and prove your prompting skills
Showing 18 battles
Calculator App
Build a calculator with basic and scientific operations, keyboard support, and history.
Color Palette Generator
Generate harmonious color palettes with various color theory rules.
Countdown Timer
Create multiple countdown timers with presets, alerts, and persistence.
Unit Converter
Convert between units across multiple categories with real-time results.
Password Generator
Generate secure passwords with customizable rules and strength analysis.
Flashcard App
Create and study flashcard decks with spaced repetition.
Habit Tracker
Track daily habits with streaks, statistics, and visual calendars.
Recipe Scaler
Enter recipes and dynamically scale ingredients by servings.
Expense Splitter
Split expenses among a group and calculate who owes whom.
Mood Journal
Log daily moods with notes, tags, and trend visualization.
Bookmark Manager
Organize bookmarks with folders, tags, search, and import/export.
Typing Speed Test
Measure typing speed and accuracy with various text modes.
Emoji Picker
Searchable emoji picker with categories, skin tones, and recent usage.
Quiz App
Build a quiz application with multiple question types, scoring, a timer, and a results summary with review mode.
Pomodoro Timer
Build a Pomodoro productivity timer with work/break cycles, notifications, session history, and customizable durations.
Snake Game
Build the classic Snake game with keyboard controls, scoring, speed progression, and a high-score board.
Markdown Editor
Build a split-pane Markdown editor with live preview, syntax highlighting, and file export.
Todo App Speedrun
Build a fully functional todo app with CRUD operations, filtering, and local storage persistence.