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.
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 · 18 Languages
FarmAdvisor AI
A licensable white-label multilingual AI farm advisor for farmers, governments, NGOs, cooperatives, and agri teams — available in 18 languages including English, Spanish, French, German, Italian, Polish, Portuguese, Ukrainian, Dutch, Danish, Swedish, Romanian, Bulgarian, Catalan, Finnish, Irish, Estonian, and Hungarian. Get location-based AI crop recommendations, AI plant doctor diagnosis from photos, organic and inorganic product suggestions with buy links, soil test report analysis, live weather, and nearby crop prices. Farmers can talk to it in their native language with voice chat and read-aloud support for accessibility.
AI · Agriculture · 64 Languages
Kisan Salahkaar
A free public demo and licensable white-label multilingual AI farm advisor for farmers, governments, NGOs, cooperatives, and agri teams — available in 64 languages from Hindi, Tamil, Bengali & Punjabi to Chinese, Arabic, Japanese, Turkish & more. Get AI-powered crop recommendations, AI plant doctor diagnosis from photos, organic and inorganic product suggestions with buy links, soil test report analysis, real-time weather, and nearby crop prices. Farmers worldwide can interact in their native language with voice chat and read-aloud support for accessibility.