5 Powerful Prompts to Build Your First App with Claude Code

Build a startup idea generator web app. When the user clicks a "Generate" button, it should randomly combine an industry (like healthcare, education, food, travel, fitness), a problem (like "people forget to...", "it's hard to find...", "there's no easy way to..."), and a solution approach (like "an app that...", "a marketplace for...", "an AI that...") to create a unique startup idea. Display the idea in a large, bold card with the industry as a colored tag. Add a "Save Idea" button that stores favorites in localStorage and shows them in a sidebar. Use a modern, clean design with a gradient background and smooth animations when generating new ideas. Make it responsive for mobile.

Create a daily habit tracker app with a beautiful, minimal design. The main screen shows today's date and a list of habits, each with a checkbox. Users can add new habits by clicking a "+" button that opens a modal with a text input and color picker. When a habit is checked off, show a satisfying animation — like a green checkmark that bounces. Include a weekly view that shows a grid of the last 7 days for each habit, with colored dots for completed days and empty circles for missed days. Store all data in localStorage. Show a streak counter for each habit. Use a light theme with soft shadows and rounded corners. Make the whole thing feel calm and encouraging.

Build a study timer app using the Pomodoro technique. The main screen shows a large circular countdown timer with a clean, modern design. Default is 25 minutes of study, 5 minutes of break, with a longer 15-minute break every 4 sessions. Users can customize the durations. When the timer is running, show a subtle pulsing animation on the circle. When time is up, play a gentle notification sound and show a modal asking if they want to start a break or another study session. Track and display today's stats — total study time, number of sessions completed, and current streak. Use a dark theme with a deep blue background and bright accent colors. Include ambient sound options: rain, coffee shop, nature. Store stats in localStorage so they persist between sessions.

Create a travel destination picker app. Start with a fun questionnaire: ask the user about their budget (budget/moderate/luxury), preferred climate (tropical/cold/moderate), travel style (adventure/relaxation/culture), and trip duration (weekend/week/two weeks). Based on their answers, show 3-5 destination recommendations as beautiful cards with a gradient background representing the destination's vibe (warm colors for tropical, cool colors for cold, etc.). Each card should show the destination name, country, a short description, best time to visit, estimated budget range, and top 3 things to do there. Add a "Spin the Globe" button that randomly picks a destination with a spinning animation. Include about 20 hardcoded destinations with diverse options across different continents. Make it vibrant, visual, and exciting. Mobile-first design.

Build a resume formatter web app. Show a multi-step form that collects: personal info (name, email, phone, location, LinkedIn URL), a professional summary, work experience (company, title, dates, bullet points — allow adding multiple entries), education (school, degree, year — allow multiple), and skills (allow adding individual skill tags). After filling in all sections, show a live preview of the formatted resume on the right side of the screen. Offer 3 template styles: "Classic" (traditional black and white), "Modern" (with a colored sidebar), and "Minimal" (lots of white space, elegant typography). Add a "Download as PDF" button using the browser's print functionality with print-optimized CSS. The form should save progress to localStorage so users don't lose their work. Use a clean, professional design appropriate for a tool that generates professional documents.