Denoise It

Strip the noise. See what's real.

Denoise It is an AI-powered fact-checking platform that separates signal (verifiable truth) from noise (emotional language, bias, sensationalism, and narrative framing) in any piece of content. Paste a tweet, headline, article, claim, link, or rumor — and get a clear, source-backed verdict in seconds.

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How It Works

1. Paste anything — A tweet, headline, article, claim, link, question, or rumor.
2. AI analyzes — An AI agent cross-references primary sources, government data, and peer-reviewed research in real time using web search.
3. See the signal — Get a clear verdict with confidence scores, sourced facts, and every piece of noise identified and explained.

Features

• Signal extraction — Verifiable facts, statistics, and attributions pulled from primary sources with confidence scores
• Noise identification — Emotional language, bias, speculation, sensationalism, and missing context flagged and explained
• Source credibility scoring — Prioritizes .gov, .edu, and peer-reviewed sources; penalizes unsupported media amplification
• Time-sensitive filtering — Focus analysis on recent information (24 hours to 2 years)
• Follow-up chat — Ask deeper questions about any analysis with full context preserved
• Multi-language output — Results in 10 languages (EN, ES, FR, DE, PT, IT, JA, KO, ZH, AR)
• Privacy controls — Public, Unlisted, or Private visibility for saved analyses
• Shareable links — Every analysis gets a unique URL with rich social previews (dynamic OG images)
• URL deduplication — Analyzing the same URL returns the existing result instantly
• No account required — Core analysis works without sign-in; optional Google OAuth for saving and managing

Tech Stack

Layer	Technology
Framework	Next.js 16 (App Router, RSC, Turbopack)
Language	TypeScript 5.8
UI	React 19, Tailwind CSS 4, shadcn/ui, Framer Motion
API	tRPC 11 (end-to-end type safety)
Database	PostgreSQL + Prisma 6
Auth	NextAuth 5 (Google OAuth)
AI	Anthropic Claude (via Vercel AI SDK), OpenRouter
Tooling	pnpm, Oxlint (type-aware), Oxfmt, husky + lint-staged

Getting Started

Prerequisites

• Node.js 20+
• pnpm 9+
• PostgreSQL database

Setup

1. Clone the repo

   git clone https://github.com/vichudo/denoise-it.git
   cd denoise-it
   

2. Install dependencies

   pnpm install
   

3. Configure environment variables

   cp .env.example .env
   

   Fill in your .env:

   # Auth — generate with: npx auth secret
   AUTH_SECRET=""
   
   # Google OAuth — https://console.cloud.google.com/apis/credentials
   AUTH_GOOGLE_ID=""
   AUTH_GOOGLE_SECRET=""
   
   # PostgreSQL connection
   DATABASE_URL="postgresql://postgres:password@localhost:5432/denoise-it"
   
   # AI providers
   ANTHROPIC_API_KEY=""
   OPENROUTER_API_KEY=""
   

4. Push the database schema

   pnpm db:push
   

5. Start the dev server

   pnpm dev
   

   Open http://localhost:3000.

Scripts

Command	Description
pnpm dev	Start dev server (Turbopack)
pnpm build	Production build
pnpm start	Start production server
pnpm check	Format check + lint + typecheck
pnpm lint	Oxlint (type-aware)
pnpm lint:fix	Oxlint with auto-fix
pnpm typecheck	TypeScript type checking
pnpm format	Oxfmt auto-format
pnpm format:check	Oxfmt check
pnpm db:push	Push Prisma schema to database
pnpm db:generate	Create Prisma migration
pnpm db:migrate	Deploy Prisma migrations
pnpm db:studio	Open Prisma Studio

Project Structure

src/
├── app/
│   ├── _components/       # Page-specific client components
│   ├── api/               # API routes (auth, tRPC, chat, OG images)
│   ├── dashboard/         # User dashboard (protected)
│   ├── link/              # URL-based analysis
│   ├── login/             # Authentication page
│   └── s/[id]/            # Signal view page
├── components/
│   └── ui/                # shadcn/ui component library (65+)
├── server/
│   ├── api/
│   │   └── routers/       # tRPC routers (analysis, followup, user)
│   ├── auth/              # NextAuth configuration
│   └── db.ts              # Prisma client singleton
├── trpc/                  # tRPC client wiring (React + RSC)
├── lib/                   # Shared utilities
└── styles/                # Global CSS + theme variables

License

This project is open source under the MIT License.