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> think. build. demo. win.

Find a hackathon idea you can actually ship.

Every idea = build steps + stack + demo plan.

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Ideas
506
Categories
11
Tech stacks
177
Under 24h
451

  1. 01

    Pick

    Filter by time, team & stack

  2. 02

    Scope

    One problem, one user

  3. 03

    Build

    3–5 clear steps

  4. 04

    Demo

    A 60-second wow moment

Idea of the day

Weekend sprint

≤ 12 hours

220

Solo-friendly

Build alone

397

First hackathon

Beginner level

194

Judge favourites

Fit score 17+

276

What should I build?

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1 · Your experience
2 · Time you have
3 · Theme
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Explore by category

All ideas
46

AI

LLM-powered tools that save real time

46

AI Agents

Agents that act, not just answer

46

Climate

Measurable impact for the planet

46

Productivity

Fix everyday workflow pain

46

Fintech

Money insights people actually use

46

Health

Light-touch wellbeing tools

46

Web3

Smart contracts with a real-world job

46

EdTech

Help people learn faster and fairer

46

Devtools

Tools developers would install today

46

Social Good

Tech for communities and inclusion

46

Gaming

Playable demos judges remember

Highest judging fit

See ranking

  • AI

    Ask Your CSV in Plain English

    Upload a CSV, ask a question and get a chart plus the SQL that produced it

    Intermediate14h1–2
    DuckDBLLMCharts
    18/20

  • AI Agents

    NGO Grant Application Agent

    The agent drafts grant applications from your past reports and the funder's criteria

    Intermediate18h1–3
    RAGLLMMarkItDown
    18/20

  • Health

    AI Consultation Scribe

    Draft visit notes from the consultation conversation for the doctor to edit

    Advanced24h2–3
    WhisperLLMNext.js
    18/20

  • Web3

    Commit-Reveal Hackathon Judging

    Judges submit hidden scores that are revealed together so nobody copies others

    Intermediate16h2–3
    SolidityFoundryNext.js
    18/20

  • EdTech

    In-Browser Python Autograder

    Students run and get graded on Python exercises entirely in the browser

    Intermediate16h1–2
    PyodideNext.jsPostgres
    18/20