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Timed breathing exercises with adjustable audio, visuals and haptics

A workshop whiteboard with polls, timed exercises, dot voting, version history, and offline editing.

Short programming tutorials beside exercises and references

Free guided meditation, breathing exercises and courses without a premium tier

English explanations and exercises indexed by topic and level.

Daily IELTS lessons, practice exercises, videos and model answers on a member learning site.

AI learning platform that builds a personalized curriculum for any subject

Contemporary English lookup with vocabulary exercises

Coding foundations taught through visible program behavior

Graduate recruitment preparation with aptitude practice, video interviews and assessment-centre exercises.

Coding exercises for data and machine-learning study

SQL exercises running against SQLite in the browser

Small Rust exercises beside the language book

Grammar explanations and exercises with answer feedback.

IELTS practice and lessons with writing samples, vocabulary exercises and a speaking simulator.

Practical frontend exercises with hints and extensions

Language practice with exercises and mentoring

Free music theory exercises for learners and teachers

SQL questions and explanations using one consistent dataset

A directory of French-learning resources and original exercises.

English study combining live classes and self-study.

Free practice resources for several English exams, including IELTS, TOEFL, TOEIC and Cambridge English.

AI speaking practice for English and 35+ languages

Film-based English lessons with teacher support.