Greetings from…

Curriculum-aligned coding lessons your class can start in five minutes.

Free for teachers and students.

Discover a Journey →

or ask your teacher for the class code to:

Join a class
Class Code
The first five minutes

Your class is working before you've finished the roll.

  1. Students log in and land on their next activity. Nothing to write on the board, no link to hunt for.
  2. You mark the roll and settle the room. Everyone is already busy, each at their own level.
  3. No laptop? Print the worksheet. Every module has a printable version with a full answer key.
Curriculum

Aligned to what you actually teach

Journeys follow a course's outcomes in order (what students need first, then what builds on it) rather than a loose list of topics. Where a journey is mapped to a published curriculum, we name it.

Teaching something else? Build your own journey from any module, or write your own.

Class progress

See your whole class at a glance

Who's online, what each student is working on, and who hasn't started yet. It's live, on one screen.

  • Print a worksheet for the student who's offline today.
  • Print certificates for the students racing ahead.
  • Spot who's stuck, so your attention goes where it's needed.
Teacher tools

Everything else you'd want in the room

Sprints

A fast whole-class game on any module, where every student plays at their own level.

Diamond Dash · Snake Break · High Noon Hangman

Certificates

Print one for a student, or a set for the whole class, straight from the class page.

Team Up Picker

Random, fair groups in one click.

Cool Caller Wheel

Spin to pick who answers next.

Study Buddy notebooks

Students keep their own notes as they work and can export them to Anki or Quizlet. You can read every notebook.

Crosswords & word searches

Generated from your class's journey, with answer keys.

How it works

Journeys, activities, biomes

Choose a journey

A complete course (Python, JavaScript, HTML & CSS or pseudocode) split into short modules.

Six activity types

Duo, Matches, Meanings, Practice, Gaps and Spots each come at an idea from a different angle.

Master each biome

About ten modules per biome, with collectable badges and a weekly streak along the way.

Meet the Journeys

Every journey travels through the same seven biomes, each with its own characters and challenges. Python, JavaScript, HTML & CSS and pseudocode journeys are live now, alongside courses built by teachers in the community.

Cloodit biome characters
Desert
Forest
Reef
Tundra
Deep Sea
Savannah
Space

Seven biomes, around ten modules each. A complete arc from a first line of code to object-oriented programming.

Free & Printable

Free printable worksheets, crosswords & word searches

Every module has a printable worksheet with a full answer key, and every block of modules has its own crossword and word search — free to print or save as a PDF, no login needed. Make a free class and you can print them from your own journey too.

Ready when you are

Cloodit is fun and free for teachers and students.