#privacy hackathon ideas

Ideas tagged privacy

• AI

  On-Device Private Summarizer

  Summarizes private documents without data ever leaving the laptop

  Advanced36h2–3

  Next.jsWebLLMWebGPU

  17/20

• AI

  Private Photo Search in the Browser

  Search your photos by description without uploading them anywhere

  Advanced30h1–3

  Transformers.jsCLIPWebGPU

  17/20

• AI

  Smart Document Redactor

  Automatically blur personal details before you share a document

  Intermediate14h1–2

  Tesseract.jsTransformers.jsCanvas

  17/20

• AI Agents

  Offline Desktop File Organizer Agent

  A local agent sorts and renames your files without sending anything online

  Intermediate16h1–2

  OllamaPythonElectron

  17/20

• Productivity

  Personal Search Across Mail, Docs and Notes

  Ask one question and search your email, drive and notes at once

  Advanced26h1–3

  EmbeddingsQdrantGmail API

  17/20

• Fintech

  UPI SMS Spend Categorizer

  Turn bank and UPI SMS alerts into a categorised monthly budget

  Beginner10h1–2

  React NativeRegexCharts

  17/20

• Fintech

  Encrypted Family Finance Vault

  Store policies, accounts and nominee details so family can find them when needed

  Intermediate16h1–2

  Next.jsWeb CryptoPostgres

  17/20

• Fintech

  Financial Data Consent Manager

  See and revoke which apps can access your financial data

  Advanced24h2–3

  Next.jsOAuthPostgres

  17/20

• Fintech

  KYC Document Pre-Check

  Check ID photos for blur, glare and mismatched names before submission

  Intermediate14h1–2

  MediaPipeTesseract.jsNext.js

  17/20

• Health

  CBT Thought Record Journal

  Guided thought records that help reframe anxious thoughts

  Beginner10h1

  Next.jsLLMLocal storage

  17/20

• Web3

  Document Hash Notary

  Prove a document existed at a time without revealing its content

  Beginner8h1

  ViemWeb CryptoNext.js

  17/20

• Web3

  Zero-Knowledge Age Proof

  Prove you are over 18 without revealing your birth date

  Advanced30h2–3

  ZK circuitsCircomNext.js

  17/20

• EdTech

  Student Early-Warning Dashboard

  Spot students at risk of falling behind from attendance and grades

  Advanced22h2–3

  PythonNext.jsPostgres

  17/20

• Social Good

  Quick-Exit Domestic Violence Resource Site

  Find help safely with a quick-exit button and no browsing trace

  Intermediate12h1–2

  Next.js

  17/20

• AI

  Privacy-Safe Synthetic Dataset Maker

  Generate realistic fake data with the same shape and stats as your real data

  Intermediate16h1–2

  PythonDuckDBLLM

  16/20

• AI Agents

  Terms of Service Change Watcher

  Get a plain-language alert when an app you use changes its terms or privacy policy

  Beginner10h1–2

  PlaywrightLLMCron

  16/20

• Productivity

  Context Switch Tracker

  Measure how often you switch apps and how it hurts deep work

  Intermediate14h1

  ElectronSQLiteCharts

  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

  Private Net Worth Tracker

  Track assets and debts over time privately on your own device

  Beginner10h1

  Next.jsIndexedDBECharts

  16/20

• Health

  Private Cycle Tracker

  Track cycles with all data stored only on the device

  Beginner10h1

  React NativeSQLiteEncryption

  16/20

• Health

  Family Health Records Folder

  Keep prescriptions, reports and vaccines for every family member organised

  Beginner10h1–2

  Next.jsVision LLMSupabase

  16/20

• Health

  Skin Mole Photo Timeline

  Take consistent photos of moles over time and compare them side by side

  Intermediate14h1

  React NativeOpenCVLocal storage

  16/20

• Web3

  Encrypted IPFS File Drop

  Share files that only the intended wallet can decrypt

  Intermediate14h1–2

  HeliaWeb CryptoWagmi

  16/20

• Devtools

  Local LLM Code Autocomplete

  Code completion that runs entirely on your machine

  Advanced22h1–2

  OllamaTypeScriptVS Code API

  16/20

• AI Agents

  Agent Memory Viewer and Editor

  See, search, correct and delete what your agent remembers about a user

  Intermediate16h1–2

  Vector DBLLMNext.js

  15/20

• Productivity

  Local-First Notes with Peer Sync

  Notes that work offline and sync between your devices without a central server

  Advanced28h1–3

  YjsIndexedDBWebRTC

  15/20

• Devtools

  Private Codebase Q&A

  Answers questions about a codebase using only local models

  Advanced36h2–3

  PythonOllamaVector DB

  15/20