Upload a CSV, ask a question and get a chart plus the SQL that produced it
#llm hackathon ideas
35 ideas across 7 categories · 9 beginner · 25 intermediate · 1 advanced. Sorted by judging fit (editorial estimate).
Ideas tagged llm
- Intermediate14h1–2DuckDBLLMCharts18/20
One player in a werewolf-style game is secretly an AI
Intermediate16h2–3LLMSocket.IONext.js18/20Turns hours of resume screening into a ranked shortlist in minutes
Beginner24h1–3Next.jsOpenAI APITailwind17/20Compare several models' answers to your own prompt without seeing which is which
Intermediate12h1–2Vercel AI SDKNext.jsSQLite17/20Describe a process or system and get a hand-drawn style diagram you can edit
Intermediate14h1–2LLMExcalidrawReact17/20Describe what went wrong and get a firm, polite complaint with the right details
Beginner8h1–2LLMNext.jsTailwind17/20Productivity
Prompt-to-Dashboard
Turns a CSV and one sentence into a working dashboard
Intermediate24h1–3Next.jsLLMCharts17/20Productivity
Outline to Slide Deck
Write a bullet outline and get a clean, editable slide deck
Intermediate14h1–2LLMReactSatori17/20Productivity
Form Builder from One Sentence
Describe the form you need and get a working, shareable form
Beginner8h1–2LLMNext.jsJSON Schema17/20Productivity
Command Palette for Any Web App
Drop-in Cmd+K palette that understands natural language commands
Intermediate14h1–2ReactLLMTypeScript17/20Generate a lesson plan aligned to a curriculum standard with activities and checks
Intermediate12h1–2LLMNext.js17/20Devtools
Stack Trace Explainer
Paste an error and get the likely cause, the relevant line and a fix
Beginner10h1LLMNode.jsTree-sitter17/20Devtools
Unit Tests from Diffs
Generate missing unit tests for the code changed in a PR
Intermediate16h1–2LLMNode.jsVitest17/20Devtools
Semgrep Rule from Example
Show a bad code example and get a static analysis rule that finds it everywhere
Intermediate12h1SemgrepLLMNode.js17/20Devtools
Voice Rubber Duck Debugger
Explain your bug out loud and the duck asks the right questions
Intermediate12h1WhisperLLMSpeech API17/20Devtools
Prompt Regression Tests
Catch quality drops when prompts or models change
Intermediate14h1–2Node.jsLLMGitHub Actions17/20Social Good
Community Moderation Assistant
Triage reported posts with suggested actions and rule citations
Intermediate14h1–2LLMNext.jsPostgres17/20Gaming
Chess Move Explainer
Explain why the engine's best move is best in plain words
Intermediate14h1Chess engineLLMNext.js17/20Gaming
LLM Murder Mystery Party
Every guest gets a secret character while an AI narrator runs the mystery
Intermediate16h1–3LLMSocket.IONext.js17/20Breaks big study goals into realistic daily plans
Intermediate24h1–2ReactLLM16/20Lets people ask questions about long documents instantly
Intermediate24h1–3Next.jsRAGLLM16/20Improves clarity without changing the writer’s voice
Intermediate24h1–2Next.jsLLM16/20Upload a rental agreement and see risky clauses explained in plain language
Intermediate14h1–3PDF.jsLLMNext.js16/20Incoming tickets get a category, urgency and suggested reply automatically
Intermediate14h1–3EmbeddingsLLMPostgres16/20See how different outlets frame the same news story side by side
Intermediate16h1–3Search APIEmbeddingsLLM16/20Extract tables from messy PDFs into clean, checked CSV files
Intermediate14h1–2MarkItDownPythonLLM16/20Attack your own LLM app with known injection patterns and see which ones get through
Intermediate18h1–3LLMNode.jsNext.js16/20Check social posts against your brand voice guide before posting
Beginner8h1–2LLMNext.jsTailwind16/20Productivity
AI Invoice Generator
Creates clean invoices from plain text in seconds
Beginner12h1–2Next.jsPDF libraryLLM16/20Fintech
Personal Finance Insights
Shows spending patterns and simple saving suggestions
Intermediate24h1–3ReactChartsLLM16/20Generates playable levels from a text description
Advanced36h2–3PhaserLLMJSON16/20Helps people spot important emails without reading everything
Beginner12h1–2Next.jsOpenAI API15/20Paste reviews and get honest pros, cons and who the product is not for
Beginner8h1–2LLMEmbeddingsNext.js15/20Describe your mood or moment and get a playlist that fits
Beginner8h1–2LLMMusic APINext.js15/20Gaming
AI Dungeon Master
Runs a story-driven game session that remembers player choices
Intermediate24h1–3Next.jsLLMRealtime DB15/20