DataForge is a privacy-first, dark-themed platform designed to sanitize raw CSV/Excel files and run advanced feature engineering pipelines entirely inside your browser. Instead of risking data leaks by uploading sensitive company metrics to remote cloud servers, DataForge processes everything locally in your tab.

The application utilizes a modular, subscription-backed architecture. Free users get standard cleaning tools with a rolling 24-hour file upload limit. Upgrading to the Premium Tier ($5/Month) seamlessly unlocks a dedicated advanced suite—complete with multi-dataset relational joining, matrix vectorization, and high-resolution chart exports—making your datasets instantly ready for analytics or ML models.

🛠️ Built With (Tech Stack)

• Frontend Framework: React (Vite-powered, optimized architecture)

• Styling & UI: Tailwind CSS (Dark-themed glassmorphic design)

• Database & Auth: Supabase (PostgreSQL, Google OAuth, Realtime profile triggers)

🔥 Key Features

1. Standard Cleaning Suite (Free)

• Smart Column Merging: Combine text columns seamlessly within a single file.

• Advanced Date Parser: Instantly corrects corrupted 5-digit Excel serial stamps (44927) and natural language date strings.

• Row-Level Hygiene: Fast whitespace trimming, formatting fixes, and structural type enforcement.

2. Premium Feature Engineering Panel (Locked Overlay for Free Users)

• One-Hot Encoding: Turn categorical text columns into clean binary vector matrices (0 or 1).

• Datetime Extractor: Automatically breaks timestamps into Year, Month, Day_of_Week, and Is_Weekend sub-columns.

• Custom Math Combinator: Create entirely new calculated columns using quick cell formulas (e.g., [Col A] * [Col B]).

• Imputation Shadow Flags: Generates a companion [Column]_Is_Imputed tracking grid to record automated anomaly fixes.

• Statistical Outlier Treatment: Isolate, cap, or purge extreme values via an interactive IQR calculator.

• Multi-Dataset Relational Join: Merge up to 3 individual files concurrently using shared column keys.

• High-Res Chart Exports: Download interactive visual reporting graphs instantly as PNG or SVG vector files..