Free resources
Data engineering
Distributed storage, batch processing, streams and an in-memory store, on your own private copy.
Hands-on labs
Labs
Every lab is a real environment with a terminal beside it, nothing to install. Each has a short basic lesson that shows how a lesson works with a lab. A free account runs every lab and is given the basic lessons on Home; with no account you can run the Git lab and the SQL lab.
Container lab
Hadoop lab: HDFS and MapReduce, with a file to put in and a word count to read
Each student gets a private Hadoop cluster: put a file into HDFS, list it, read it back and read a MapReduce word count. Source on GitHub.
Free lessons
- Hadoop Basics
How it works · Source on GitHub · Create a free account to run it
Container lab
Apache Spark lab: learn DataFrames and Spark SQL on a CSV file, with the Spark UI
A private Apache Spark for each student: load a CSV into a DataFrame, filter, group, query in SQL and see the jobs in the Spark UI. Code on GitHub.
Free lessons
- Spark Basics
How it works · Source on GitHub · Create a free account to run it
Container lab
Kafka lab: topics, producers, consumers, partitions and offsets in the browser
Each student gets a private Apache Kafka broker and Kafka UI: make a topic, produce messages, read them from the beginning and see offsets. Source on GitHub.
Free lessons
- Kafka Basics
How it works · Source on GitHub · Create a free account to run it
Container lab
Valkey lab: learn a Redis-compatible key-value store with keys, expiry, lists and counters
A private Valkey store, Redis-compatible, for each student: keys, expiry, lists, hashes and counters in a browser terminal. Nothing to install; code on GitHub.
Free lessons
- Valkey Basics
How it works · Source on GitHub · Create a free account to run it
Basic lessons are given to every free account, on Home, and to every college. Curriculum lessons, such as T Level, are for colleges. Labs marked as an Ubuntu VM lab are set by a teacher in a module, and their lessons start the VM for you.
Run these yourself
A free personal account runs every lab here and its lesson. Teaching a class? Start a college and set them for your students.
Make a free accountStart a college
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