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.
How It Works
- Paste anything — A tweet, headline, article, claim, link, question, or rumor.
- AI analyzes — An AI agent cross-references primary sources, government data, and peer-reviewed research in real time using web search.
- 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
-
Clone the repo
git clone https://github.com/vichudo/denoise-it.git
cd denoise-it
-
Install dependencies
pnpm install
-
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=""
-
Push the database schema
pnpm db:push
-
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.
