40+ hackathon project ideas for 2026, from beginner to advanced

Updated 11 Oct 2026

The best hackathon projects are small enough to finish and clear enough to demo in two minutes. Each idea below names who it helps and a stack that works in 24 to 48 hours. Pick one that matches your team’s skills, then cut it down to a single flow that works end to end.

Beginner-friendly ideas

Stack for most of these: HTML/CSS/JavaScript or React, with a free backend like Firebase or Supabase.

• Campus lost and found: post and search lost items with photos.
• Canteen pre-order: order and pay ahead to skip the queue.
• Study group finder: match students by subject and free time.
• Blood donor directory: find nearby donors by blood group, with consent.
• Event check-in: QR tickets and a scanner for college fests.
• Expense splitter for hostels: track shared expenses and settle up over UPI links.
• Habit tracker with streaks: simple daily goals with reminders.
• Notes marketplace: share and rate class notes by subject.
• Local language word of the day: learn a regional language in small daily steps.
• Volunteer board for NGOs: list tasks and sign up volunteers.

AI and GenAI project ideas

Stack: Python (FastAPI) or Next.js, an LLM API, a vector store for retrieval, and Streamlit or React for the UI.

• Syllabus-aware study assistant: answers questions only from your course PDFs, with citations.
• Interview coach: mock interviews with feedback on answers for a chosen role.
• Resume to job matcher: scores a resume against a job description and suggests changes.
• Regional-language voice assistant: speech in, answers out, for farmers or shopkeepers.
• Meeting summariser: turns a recording into notes, decisions and action items.
• Accessibility describer: describes images and documents for visually impaired users.
• Code reviewer: explains a pull request and flags risky changes.
• Legal notice explainer: turns legal language into plain steps in Hindi or English.
• Fake news checker: checks a forwarded message against trusted sources and explains why.
• Personal finance chat: answers questions about your own spending from bank SMS, kept on the device.

Agentic AI project ideas

An agent plans, uses tools and acts. Stack: an LLM with function calling, or a framework such as LangGraph, CrewAI, the OpenAI Agents SDK or the Claude Agent SDK. Always add guardrails and a human approval step for risky actions.

• Scheme application agent: finds government schemes a citizen qualifies for and fills the forms.
• Seller support agent: reads orders, processes simple refunds and escalates the rest.
• Research agent: searches, reads and writes a cited one-page brief on a topic.
• Bug-fix agent: reproduces a reported bug, edits the code and runs the tests.
• Travel planner agent: books a plan within a budget using live train and bus data.
• Disaster relief coordinator: matches help requests with volunteers and supplies, and tracks status.
• Paper-trading agent: trades on simulated money within strict risk limits, explaining each decision.
• Inbox triage agent: sorts email, drafts replies and asks before sending.

Web and mobile app ideas

• Clinic queue tracker: live token number for small clinics on WhatsApp.
• Kirana inventory: stock tracking from bill photos for small shops.
• Carpool for colleges: match students going the same way.
• Skill swap: trade lessons, such as guitar for Python.
• Rental reviews: honest reviews of PGs and flats near campuses.
• Ration card helper: check entitlements and nearby shop stock.

Hardware and IoT ideas

Stack: ESP32 or Arduino, cheap sensors, MQTT and a simple dashboard.

• Smart irrigation controller: soil moisture and weather decide when to water.
• Air quality monitor: classroom CO₂ and PM2.5 with alerts.
• Fall detector for the elderly: wearable that alerts family members.
• Smart dustbin: fill-level alerts for municipal pickups.
• Cold-chain tracker: temperature logs for vaccine or food transport.
• Women’s safety band: one-press SOS with live location.

How to turn an idea into a winning project

1. Write one sentence: “For [user], who [problem], we built [solution] that [result].”
2. List every feature, then keep the one flow your demo needs. Build that first.
3. Use real data where you can, even a small sample, rather than lorem ipsum.
4. Deploy early (Vercel, Render, Streamlit Cloud) so the demo works from a link.
5. Leave the last 20% of the time for the deck, the demo video and the README.

Tip: Need a sharper problem? Browse 40 problem statements by domain. Ready to build? Find AI hackathons open now.

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