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About

Courses that end with work you can show.

Coding Liquids makes project-first video courses in Excel with AI and Flutter, sold worldwide to 30,000+ students in 175 countries. Every course comes with lifetime access, free preview lessons and a Certificate of Completion, with an optional month of instructor support.

The people

Meet the team.

Sagnik Bhattacharya, founder of Coding Liquids, in a dark suit and glasses.

Founder

Sagnik Bhattacharya

Founder of Coding Liquids. 30,000 students from 175 countries.

Technology consultant and course creator. He has taught Flutter to more than 30,000 students worldwide and builds every lesson the same way: what the thing is, why it matters, then exactly how to do it on screen. He now brings that approach to Excel, data and AI-assisted work.

  • 30,000+ students in 175 countries
  • Corporate Flutter training and consulting, including batches at Tata Digital
  • Live workshops since 2018
Virginia Thorn smiling at the camera, dark hair tied back, wearing a navy top.

Instructor, Excel with AI

Virginia Thorn

Emmy Award winner. Teaches Excel with AI at Coding Liquids.

An Emmy Award winner who loves to teach tech. Virginia teaches Excel with AI integration: the workflows that turn a messy spreadsheet into a real answer in minutes, with AI handling the boring 80 per cent and a clear eye on where it gets things wrong.

  • Primetime Emmy Award, Outstanding Sound Editing for a Miniseries, for HBO's Generation Kill (2009)
  • Dialogue editor on The King's Speech (2010)
  • Meisner-trained actor, classically trained singer, graduate of Rose Bruford College of Theatre and Performance
Paulina Knop smiling, shoulder-length brown hair, wearing a black top.

Instructor, Flutter

Paulina Knop

Flutter developer and curriculum designer. Teaches the Flutter course.

Paulina builds the Flutter course around real apps and puts real research into every lesson, so each one is enjoyable, complete and built to last.

  • Curriculum design for the Flutter course
  • Flutter developer

Virginia Thorn and Paulina Knop are instructors under contract with Coding Liquids. All courses are created and sold by Coding Liquids.

30,000+
students taught
175
countries
2 courses
Excel with AI and Flutter
14 days
money-back guarantee

What we offer

Two courses today, built the same way.

Each course takes you from a blank file to a finished project, lesson by lesson, with free previews before you pay. More courses and a library of free tutorials are on the way.

The Complete Excel Course with AI Integration: Sagnik and Virginia

Beginner to advanced

The Complete Excel Course with AI Integration

Build the workbooks companies actually run on: dashboards, Power Query and DAX, macros and VBA, and AI with Copilot, ChatGPT and Claude.

Length
16 hours
Lessons
186
Free previews
4
Taught by
Sagnik and Virginia
View course
The Complete Flutter Course: Build Android, iOS and Web Apps: Sagnik and Paulina

Beginner to intermediate

The Complete Flutter Course: Build Android, iOS and Web Apps

The complete Flutter SDK, Flutter framework, Dart and Firebase course to develop fast, production-grade apps for Android, iOS and the web.

Length
24 hours
Lessons
223
Taught by
Sagnik and Paulina
View course

  • Lifetime access

    Come back to any lesson whenever you need it, with future updates included.

  • Free preview lessons

    Watch the opening lessons of every course before you decide.

  • Certificate of Completion

    A PDF certificate with a verification link, emailed when you finish.

  • Projects you keep

    Every section ends with something you built: a dashboard, an app screen, an automation.

  • Instructor support plan

    One month of questions answered by the instructor, plus Ask AI in every lesson for immediate answers drawn from that lesson, labelled as AI. Activate it whenever you choose.

  • Team plans

    Several seats at a per-seat discount, with a team area to follow progress.

Live workshops

Some of the rooms we have taught in.

  • A packed auditorium of students facing the stage during a workshop.
  • Rows of students listening closely from the front of the auditorium.
  • Students raising their hands and phones during a session.
  • Sagnik Bhattacharya answering a question with a microphone in hand.
  • A full lecture hall seen from the side, every row taken.
  • Students following the session on their laptops.
  • A lecture hall full of students, many with laptops open.
  • The hall during a session, seen from the back, with the screen lit at the front.

How we teach

Project-first. Always.

Three principles, applied in every lesson.

Build first

Lessons start with building something. The theory follows the moment you need it.

What, why, how

Each concept is explained by what it is, why it matters and exactly how to use it.

Production grade

You learn the way the work is actually done, with the habits that hold up in a real job.

Students

In their words.

  • The Flutter course is really great! The two professors are very clear and concise in their explanations. They make sure that you understand the concepts before moving on. I highly recommend it as it’s one of the best courses I’ve ever stumbled upon!

    Euller Santos Araujo

    Student · Brazil

  • I cannot stress enough how impressed I am with the Flutter course made by Coding Liquids as not only was it incredibly affordable, but the quality of instruction and support exceeded my expectations. The instructors were always responsive and eager to help whenever I encountered difficulties, which is a rarity on most online learning platforms where students are often left to figure things out on their own.

    José Manuel Claros

    Student · Spain

  • I have work experience in various tech companies and I think this course is fantastic! It’s very informative and useful! I like the fact that the videos are short and concise, and the instructors explain everything in a way that is easy to follow. The content is updated and gives me the confidence to use Flutter in my projects. 100% recommended.

    Karol José Gutiérrez Suárez

    Student · United States

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