#beginners hackathon ideas

104 ideas across 11 categories · 103 beginner · 1 intermediate · 0 advanced. Sorted by judging fit (editorial estimate).

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Gaming
Shout-to-Jump Voice Game
Control a character with the loudness and pitch of your voice
Beginner8h1
Web AudioPhaser
18/20
Gaming
Jump Rope Counter Game
Count jumps with the webcam and compete on streaks
Beginner8h1
MediaPipeJavaScript
18/20
AI
Consumer Complaint Letter Drafter
Describe what went wrong and get a firm, polite complaint with the right details
Beginner8h1–2
LLMNext.jsTailwind
17/20
Climate
Restaurant Menu Carbon Labels
Show an estimated carbon label on each menu item
Beginner10h1–2
Next.jsTailwindJSON
17/20
Productivity
Voice-to-Task Capture
Say a thought out loud and it becomes a dated, tagged task
Beginner8h1–2
WhisperLLMNext.js
17/20
Productivity
Calendar Time Audit
See where your week actually went by category and who you met
Beginner8h1
Calendar APILLMCharts
17/20
Productivity
Trip Itinerary Merger
Combine flight, hotel and train confirmations into one clean timeline
Beginner10h1–2
LLMNext.jsGmail API
17/20
Productivity
Form Builder from One Sentence
Describe the form you need and get a working, shareable form
Beginner8h1–2
LLMNext.jsJSON Schema
17/20
Fintech
True-Cost Loan Comparator
Compare loans by total cost including fees, not just the headline rate
Beginner8h1–2
Next.jsChartsLLM
17/20
Fintech
Tax Deduction Checklist Bot
Answer a few questions and get the deductions you may be missing
Beginner10h1–2
Next.jsLLMJSON rules
17/20
Fintech
Bill Negotiation Coach
Get a script and practice partner for lowering your bills
Beginner8h1
LLMNext.jsSpeech API
17/20
Fintech
Buy Now Pay Later Exposure Tracker
See all your pay-later instalments and upcoming dues in one place
Beginner10h1
Next.jsGmail APICharts
17/20
Health
Migraine Trigger Tracker
Log headaches with sleep, food and weather to spot personal patterns
Beginner10h1
Next.jsWeather APICharts
17/20
Health
20-20-20 Eye Break Coach
Reminds you to look away every 20 minutes and checks blink rate
Beginner6h1
MediaPipeChrome extension
17/20
Health
Caregiver Shift Coordinator
Share caregiving shifts, notes and medicine logs among family members
Beginner10h2–3
Next.jsSupabase
17/20
Health
Reaction-Time Fatigue Check
A one-minute reaction test that tracks fatigue against your baseline
Beginner8h1
JavaScriptCharts
17/20
Web3
Student Club Voting App
Run transparent elections where each member votes once
Beginner10h1–2
SolidityScaffold-ETHNext.js
17/20
Web3
Document Hash Notary
Prove a document existed at a time without revealing its content
Beginner8h1
ViemWeb CryptoNext.js
17/20
Web3
DeFi Loan Health Alerts
Get alerts before your loan gets liquidated
Beginner10h1
ViemNode.jsTelegram Bot API
17/20
Web3
First Wallet Testnet Sandbox
Learn to use a wallet safely with fake money and guided missions
Beginner10h1–2
WagmiNext.jsTestnet
17/20
Web3
ABI to Admin UI Generator
Paste an ABI and get a working admin panel for the contract
Beginner10h1–2
Scaffold-ETHWagmiNext.js
17/20
EdTech
Homework Explainer for Parents
Explain a homework method so parents can help without confusing kids
Beginner10h1
Vision LLMNext.js
17/20
EdTech
Dyslexia-Friendly Reader Mode
Make any web page easier to read with fonts, spacing and read-aloud
Beginner10h1
Chrome extensionSpeech APILLM
17/20
EdTech
SQL Playground with Real Datasets
Practise SQL on real datasets right in the browser
Beginner10h1
DuckDBNext.js
17/20
EdTech
Visual Git Learning Sandbox
Learn branching and merging with a live visual commit graph
Intermediate14h1–2
JavaScriptD3Next.js
17/20
EdTech
Music Ear Trainer
Train intervals, chords and rhythm with instant feedback
Beginner10h1
Web AudioJavaScriptFSRS
17/20
EdTech
Mistakes Notebook with Spaced Review
Save every mistake and review it until you stop making it
Beginner10h1
FSRSNext.jsVision LLM
17/20
Devtools
Dependency Health Checker
See which dependencies are abandoned, vulnerable or heavy
Beginner10h1
Node.jsnpm registry APINext.js
17/20
Devtools
Env Variable Drift Checker
Catch missing or mismatched environment variables before deploys fail
Beginner8h1
Node.jsTree-sitter
17/20
Devtools
Regex from Examples
Give matching and non-matching examples and get a tested regex
Beginner8h1
LLMJavaScript
17/20
Devtools
Stack Trace Explainer
Paste an error and get the likely cause, the relevant line and a fix
Beginner10h1
LLMNode.jsTree-sitter
17/20
Devtools
Webhook Inspector and Replayer
Capture, inspect and replay webhooks while building integrations
Beginner10h1
Node.jsNext.jsPostgres
17/20
Devtools
Hackathon Starter Kit Generator
Describe your idea and get a ready repo with auth, database and deploy config
Beginner10h1
Node.jsTemplatesLLM
17/20
Social Good
Donation Pickup Scheduler
Schedule pickups for donated clothes, books and furniture
Beginner10h1–2
Next.jsLeafletPostgres
17/20
Social Good
Multilingual Community Notice Board
Post a notice once and residents read it in their own language
Beginner10h1–2
Next.jsTranslationTTS
17/20
Social Good
NGO Impact Report Generator
Turn program spreadsheets into a polished impact report for donors
Beginner10h1–2
Next.jsEChartsReact-PDF
17/20
Social Good
Public Toilet Finder
Find the nearest clean, accessible public toilet with ratings
Beginner8h1–2
LeafletNext.jsPostgres
17/20
Social Good
Smartphone Basics for Elders
Learn to use a phone through patient step-by-step practice
Beginner10h1–2
React NativeTTS
17/20
Social Good
Public Grievance Status Tracker
Track complaints to local authorities and send reminders when they stall
Beginner10h1–2
Next.jsPostgresLLM
17/20
Social Good
Community Fridge Map
Find community fridges and see what food is in them now
Beginner8h1–2
LeafletNext.jsSupabase
17/20
Social Good
Hours and Wage Logger for Workers
Keep a simple record of hours and payments as evidence
Beginner10h1
React NativeSQLite
17/20
Social Good
Neighbourhood Skill-Share Timebank
Trade hours of help like tutoring or repairs instead of money
Beginner10h2–3
Next.jsSupabase
17/20
Gaming
Campus GeoGuessr
Guess where on campus a photo was taken
Beginner10h1–3
LeafletNext.js
17/20
Gaming
AI Guesses Your Drawing
Draw something and race to make the AI guess it
Beginner10h1–2
Transformers.jsCanvasNext.js
17/20
Gaming
Code-the-Robot Puzzle Game
Program a robot with blocks or code to solve grid puzzles
Beginner10h1–2
PhaserJavaScript
17/20
Gaming
Habit Pixel Pet
A pixel pet that grows when you complete your habits
Beginner8h1
PixiJSLocal storage
17/20
Gaming
One-Button Accessible Games
Fun games playable with a single switch or button
Beginner10h1–2
PhaserJavaScript
17/20
Gaming
Language Word Battle
Real-time vocabulary duels with friends
Beginner10h2–3
Socket.IONext.jsFSRS
17/20
Gaming
Collaborative Pixel Canvas
Everyone places one pixel at a time on a shared canvas
Beginner10h1–2
Socket.IOCanvas
17/20
Gaming
Traffic Light Puzzle
Time traffic lights to clear a jam before the city gridlocks
Beginner10h1–2
PixiJSJavaScript
17/20
Gaming
Emoji Charades with AI Judge
Describe movies with emojis while an AI judges guesses
Beginner8h2–4
LLMSocket.IONext.js
17/20
Gaming
Crossword from Your Notes
Turn study notes into a crossword puzzle
Beginner10h1
LLMJavaScript
17/20
AI Agents
MCP Morning Brief Server
One MCP server that gives your assistant weather, transit and calendar for a daily brief
Beginner8h1–2
MCP SDKWeather APICalendar API
16/20
Climate
E-Waste Drop-off Finder
Find the nearest certified place to drop old phones, batteries and chargers
Beginner8h1–2
LeafletNext.jsFirebase
16/20
Climate
Local Climate Action Finder
Find cleanups, tree plantings and climate events near you this week
Beginner8h1–2
Next.jsLeafletFirebase
16/20
Climate
Neighbourhood Tool Library
Borrow a drill or ladder from a neighbour instead of buying one
Beginner10h1–3
Next.jsFirebaseTailwind
16/20
Productivity
Read-Later Weekly Digest
Get one weekly email with summaries of everything you saved
Beginner8h1–2
LLMNext.jsCron
16/20
Productivity
Spreadsheet Formula Explainer
Paste a scary spreadsheet formula and get it explained step by step
Beginner6h1
LLMNext.js
16/20
Productivity
Document Template Filler from CSV
Generate 200 personalised letters or certificates from a template and a sheet
Beginner8h1
Next.jsReact-PDFCSV
16/20
Productivity
Bookmark Auto-Tagger
Import messy bookmarks and get them tagged, de-duplicated and searchable
Beginner8h1
LLMNext.jsEmbeddings
16/20
Productivity
Newsletter Unsubscribe Helper
See every newsletter you get, how often you open it and unsubscribe in bulk
Beginner10h1–2
Gmail APINext.js
16/20
Fintech
EMI Affordability Checker
See whether an EMI fits your budget before you buy
Beginner6h1
Next.jsCharts
16/20
Fintech
Family Shared Budget
Plan household spending together with shared categories and roles
Beginner10h2–3
Next.jsSupabaseCharts
16/20
Fintech
Goal Savings Jars
Split savings into visual jars for goals like a laptop or trip
Beginner8h1
Next.jsLocal storage
16/20
Fintech
Donation Tax Receipt Organizer
Collect donation receipts and get a year-end tax summary
Beginner8h1
Vision LLMNext.jsPDF
16/20
Fintech
Freelancer Rate Calculator
Work out an hourly rate that covers taxes, tools, holidays and savings
Beginner6h1
Next.jsCharts
16/20
Fintech
Private Net Worth Tracker
Track assets and debts over time privately on your own device
Beginner10h1
Next.jsIndexedDBECharts
16/20
Fintech
Shift Worker Pay Calculator
Check your payslip against your shifts, overtime and night rates
Beginner8h1
Next.jsLocal storage
16/20
Fintech
Debt Snowball Planner
Compare snowball and avalanche strategies and get a payoff date
Beginner8h1
Next.jsCharts
16/20
Fintech
Fair Rent Splitter
Split rent fairly by room size, bathroom and perks instead of evenly
Beginner6h1–4
Next.js
16/20
Health
Child Vaccination Reminder
Get reminders for upcoming vaccines from the official schedule
Beginner8h1–2
Next.jsPush notifications
16/20
Health
Emergency Medical ID QR
A QR code on your phone or bag that shows key medical info to responders
Beginner6h1
Next.jsQR codes
16/20
Web3
Token-Gated Community Page
Show members-only content to wallets that hold a pass
Beginner8h1–2
WagmiViemNext.js
16/20
Web3
Gas Fee Timing Advisor
Know the cheapest time to send a non-urgent transaction
Beginner8h1
ViemEChartsNext.js
16/20
Web3
Onchain Event Guestbook
Visitors sign a permanent guestbook at an event
Beginner6h1
SolidityScaffold-ETH
16/20
Web3
Pet Adoption Registry
Record adoptions and vaccination history in a tamper-proof registry
Beginner10h1–2
SolidityOpenZeppelinNext.js
16/20
EdTech
QR and Geofence Attendance
Take attendance with a rotating QR code that only works in the room
Beginner8h1–2
Next.jsGeolocationQR codes
16/20
EdTech
Weekly Parent Update Generator
Turn a week's class notes into a friendly multilingual parent update
Beginner10h1–2
LLMNext.jsTranslation
16/20
EdTech
Syllabus to Calendar
Upload a syllabus and get every deadline in your calendar
Beginner8h1
MarkItDownLLMCalendar API
16/20
EdTech
Study Group Matcher
Match with classmates by course, schedule and study style
Beginner10h1–2
Next.jsPostgres
16/20
EdTech
Map Geography Quiz
Learn countries, rivers and capitals by clicking on an interactive map
Beginner8h1–2
LeafletNext.js
16/20
EdTech
Algorithm Step Visualizer
Watch sorting and graph algorithms run step by step with your own input
Beginner10h1–2
JavaScriptCanvas
16/20
EdTech
Scholarship Deadline Tracker
Find scholarships that match you and never miss a deadline
Beginner8h1
Next.jsPostgres
16/20
Devtools
Stale Feature Flag Finder
Find feature flags that are fully rolled out and can be removed
Beginner10h1
Node.jsTree-sitterGitHub API
16/20
Devtools
Shell Command Explainer
Paste a command and see what each part does before you run it
Beginner6h1
JavaScriptLLM
16/20
Devtools
License Compliance Checker
Check dependency licenses against your project's policy
Beginner10h1
Node.jsnpm registry API
16/20
Devtools
Cron Expression Builder
Describe a schedule in words and get a cron expression with next run times
Beginner6h1
JavaScriptLLM
16/20
Devtools
JSON Schema from Samples
Paste sample JSON payloads and get a schema, types and validators
Beginner8h1
JavaScriptJSON Schema
16/20
Devtools
Security Headers Checker
Scan a site's headers and get copy-paste fixes for your framework
Beginner8h1
Node.jsNext.js
16/20
Devtools
Changelog from Pull Requests
Generate a readable changelog from merged PRs
Beginner8h1
GitHub APILLM
16/20
Social Good
Polling Booth Finder
Find your polling booth, what to bring and how to get there
Beginner8h1
Next.jsLeaflet
16/20
Social Good
Government Service Document Checklist
Know exactly which documents you need before visiting an office
Beginner8h1
Next.jsJSON data
16/20
Social Good
Petition and Policy Summarizer
Get a neutral summary of a petition or bill before you sign or vote
Beginner8h1
LLMNext.js
16/20
Social Good
Campus Lost and Found
Post lost or found items and get matched automatically
Beginner8h1–2
Next.jsEmbeddings
16/20
Gaming
3D Maze Runner
Explore procedurally generated 3D mazes in the browser
Beginner10h1–2
Three.jsJavaScript
16/20
Gaming
Tabletop Initiative Tracker
Track turns, health and conditions for tabletop battles
Beginner8h1
Next.jsSocket.IO
16/20
Gaming
Daily Word Puzzle
A new daily puzzle with shareable results
Beginner8h1
Next.jsSatori
16/20
Gaming
Guess the Year
See a photo or headline and guess the year it is from
Beginner8h1–2
Next.js
16/20
Gaming
Live Tournament Bracket
Run a tournament with live brackets and score reporting
Beginner8h1–2
Next.jsSupabase
16/20
Gaming
Phone Tilt Maze
Roll a ball through a maze by tilting your phone
Beginner8h1
JavaScriptDevice orientation
16/20
AI
Mood to Playlist DJ
Describe your mood or moment and get a playlist that fits
Beginner8h1–2
LLMMusic APINext.js
15/20
Productivity
Live Meeting Cost Ticker
Show a live cost counter during meetings to keep them short
Beginner6h1–2
Next.jsCalendar APICharts
15/20
Web3
Decentralised Portfolio Site on IPFS
Publish a portfolio that lives on IPFS and cannot be taken down
Beginner8h1
HeliaIPFSHTML
15/20
EdTech
Line-by-Line Code Explainer
Explains any code snippet line by line for beginners
Beginner12h1–2
Next.jsLLMCode editor
15/20

Ideas tagged beginners

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