The #1 reason beginners fail at hackathons: they pick projects that are too complex. These 25 ideas are specifically designed for teams with basic skills – each can be built in 24-48 hours using free tools and APIs.
Web App Ideas (HTML/CSS/JS + a backend)
- Campus Event Finder – Aggregates events from college clubs into one searchable page. Tech: HTML + Airtable API. Difficulty: Easy
- Study Group Matcher – Students input subjects and free time, app matches them into groups. Tech: React + Firebase. Difficulty: Easy
- Lost & Found Portal – Post lost items with photos, others browse and claim. Tech: Next.js + Supabase. Difficulty: Easy
- Hostel Complaint Tracker – Submit complaints, track status, admin dashboard. Tech: React + Express + MongoDB. Difficulty: Medium
- College Bus Tracker – Display real-time bus locations on a map. Tech: Google Maps API + WebSocket. Difficulty: Medium
AI-Powered Ideas (API-based, no ML knowledge needed)
- Homework Helper Bot – Upload a photo of your question, AI explains the solution step by step. Tech: Claude/GPT API + React. Difficulty: Easy
- Resume Reviewer – Paste your resume, AI gives improvement suggestions. Tech: Next.js + Claude API. Difficulty: Easy
- Daily Motivation App – AI generates personalized motivational messages based on your goals. Tech: React + OpenAI API. Difficulty: Easy
- Recipe from Ingredients – Type what’s in your fridge, AI suggests recipes. Tech: Gemini API + React. Difficulty: Easy
- Interview Prep Bot – Practice answering common interview questions, AI gives feedback. Tech: Claude API + Voice (Web Speech API). Difficulty: Medium
Mobile/Utility Ideas
- Expense Splitter – Split bills among friends, track who owes whom. Tech: React + localStorage. Difficulty: Easy
- Habit Tracker – Daily habits with streaks, charts, and reminders. Tech: React Native (Expo) or PWA. Difficulty: Easy
- Quick Poll Creator – Create polls, share link, see real-time results. Tech: Next.js + Supabase real-time. Difficulty: Easy
- Class Notes Organizer – Upload notes by subject, search across all. Tech: React + Supabase storage. Difficulty: Medium
- Water Intake Reminder – Simple app that reminds you to drink water with gamification. Tech: PWA + notifications. Difficulty: Easy
Social Impact Ideas (Judges love these)
- Blood Donor Finder – Register as donor, search by blood type and location. Tech: React + Firebase + Maps. Difficulty: Medium
- Street Animal Feeder Network – Report hungry strays, volunteers get notified. Tech: React + Geolocation + Supabase. Difficulty: Medium
- Senior Citizen Help Request – Elderly people request help (groceries, medicines), nearby volunteers respond. Tech: React + Maps + real-time. Difficulty: Medium
- Tree Planting Tracker – Log planted trees with GPS location and photos, see community impact map. Tech: Maps API + Camera + Firebase. Difficulty: Easy
- Accessibility Feedback Tool – Rate public places for wheelchair accessibility, build a crowdsourced map. Tech: Google Maps + React + ratings. Difficulty: Medium
Fun/Creative Ideas
- Meme Generator with AI – Describe a situation, AI generates a meme template and caption. Tech: Image API + OpenAI + Canvas. Difficulty: Easy
- Spotify Playlist Story – Connect Spotify, AI writes a short story using your song titles. Tech: Spotify API + Claude API. Difficulty: Medium
- Dream Journal + Analyzer – Log dreams, AI finds patterns and meanings. Tech: React + Claude API + charts. Difficulty: Easy
- Campus AR Treasure Hunt – Place virtual items around campus, others find them using camera. Tech: AR.js + GPS. Difficulty: Hard
- Rate My Professor (Anonymous) – Anonymous course/professor reviews for your college. Tech: Next.js + Supabase + auth. Difficulty: Medium
Tips for Beginners
- Pick Easy or Medium – save Hard for your 3rd hackathon
- Use AI tools – Vibe code with Claude/Cursor to build 3x faster
- Deploy early – Free hosting options
- Focus on the demo – A working simple app beats a broken complex one