Flutter & Dart
The Complete Flutter Guide: Build Android, iOS and Web apps
The most comprehensive, industry-oriented Flutter course online. 30,000+ students across 175 countries.
Founder of Coding Liquids · Udemy Instructor
Hi, I'm Sagnik.
I teach people to build real things.
Tech educator and founder of Coding Liquids — teaching Flutter, Dart, and Excel with AI to 30,000+ students across 175 countries through hands-on, project-based courses.
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Courses
Learn by building.
Excel + AI
Complete Excel Guide with AI Integration
From beginner to advanced Excel workflows, supercharged with AI integration.
Services
How I can help.
Corporate Training
Tailored workshops for development teams across Flutter and modern app development.
App Development
End-to-end mobile and web app development using Flutter with clean architecture.
Tech Consulting
Strategic guidance on tech stack selection, architecture, and DevOps pipelines.
Projects
Things I've built.
AI · Agriculture · 36 Languages
FarmAdvisor AI
AI-powered agricultural advisory for European farmers — available in 36 European languages including English, German, French, Spanish, Italian, Dutch, Polish, Greek, Swedish, and more. Get location-based crop recommendations, upload pest or disease images for instant solutions with organic and inorganic product links, analyse soil test reports, check live weather, and view nearby crop prices. Farmers can talk to it in their native language — with full voice chat, voice input, and read-aloud support.
AI · Agriculture · 50+ Languages
Kisan Salahkaar
A free AI farming assistant available in 50+ languages — from Hindi, Tamil, Bengali & Punjabi to Chinese, Arabic, Japanese, Turkish & more. Get AI-powered crop recommendations, upload pest or disease images for instant diagnosis, analyse soil test reports, check real-time weather, and view nearby crop prices. Farmers worldwide can interact in their native language — with full voice chat, voice input, and read-aloud support.