Built with Replit
Stock & Crypto Analysis Real Quick!
Vincent Pasili
🚀 Stock & Crypto Analysis Tool
Project Overview
The Stock & Crypto Analysis Tool is a modern financial analysis platform designed for traders, investors, and analysts who demand real-time market insights and professional-grade charting. Built with a React + Express full-stack architecture, it delivers live market data, technical indicators, and seamless support for both traditional stocks and cryptocurrencies—all in one sleek, responsive interface.
By aggregating data from industry-leading providers like Polygon.io and Yahoo Finance, the platform ensures accurate, up-to-the-minute information. Users can visualize market trends, perform technical analysis, and even export customized datasets for deeper offline research.
🌟 Key Features
📊 Market Data & Insights
Live Quotes for stocks & crypto, updating automatically
Dual Asset Coverage – switch effortlessly between stock and crypto markets
Historical Data across flexible ranges (1D → 1Y)
Comprehensive Metrics – market cap, P/E, EPS, dividend yield, beta & more
📈 Technical Analysis
RSI (14) – Spot overbought/oversold signals
MACD – Identify momentum shifts with histogram overlays
Bollinger Bands – Track volatility with upper/lower bounds
Moving Averages (20 & 50 SMA) – Smooth price trends at a glance
📉 Charting Excellence
Interactive Charts powered by Recharts
Line & Candlestick Charts for precision analysis
Overlay Indicators directly on price charts
Fully Responsive – optimized for desktop and mobile
💾 Data Exports
CSV Downloads – instantly export data, indicators & metrics
Custom Export Options – choose datasets & date ranges
Excel-Ready formatting for professional workflows
🎨 User Experience
Clean, Modern UI with intuitive navigation
Optimized for Readability (light mode only)
Responsive Layout – smooth across devices
Smart Input Handling for a frictionless workflow
🛠️ Tech Stack
Frontend
React 18 + TypeScript for reliability & speed
Vite for ultra-fast builds
TanStack Query for data synchronization
Wouter for lightweight routing
Recharts for elegant charting
Backend
Express.js + TypeScript for type-safe APIs
Drizzle ORM with Neon Database (serverless PostgreSQL)
UI & Styling
shadcn/ui, Tailwind CSS, Radix UI, Lucide Icons
Custom Design System with CSS variables
Data Sources
Polygon.io API for real-time data
Yahoo Finance API for financial metrics
Hybrid Fallback System ensures reliability
🏗️ Architecture & Optimizations
Client → API Gateway → Data Aggregation flow with React Query caching
Fallback Logic ensures uninterrupted data availability
Optimized Rendering with React memoization & Vite tree-shaking
Robust Error Handling with clear user feedback and graceful degradation
🔮 Roadmap & Future Enhancements
Portfolio tracking & watchlists
Price alerts & push notifications
Advanced indicators (Fibonacci, Ichimoku, etc.)
Social sentiment & news feeds
Multi-currency & dark mode support
Real-time updates via WebSockets
Redis caching & GraphQL API
PWA support for mobile installability
🎨 Design Inspiration
TradingView for professional charting interfaces
Linear & Vercel Design for clean, modern workflows
shadcn/ui & Radix UI for accessibility & scalability
Typography: Lora (serif), Space Grotesk (sans-serif), Geist (mono) Color Palette: Professional tones, high contrast, semantic gains (green) & losses (red)
⚡ Development Setup
Configured for Replit cloud environment
Hot Module Replacement on port 5000
Automatic dependency management & environment setup
💡 Built with precision and passion, this platform blends data science, financial analytics, and modern web technologies into a powerful tool for traders and investors.
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Posted Sep 7, 2025
Built a financial analysis tool for stocks and crypto to help you stay ahead of the market free of charge.
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