CSUK:Bytes
A completely free Computer Science platform for classrooms, combining daily practice, performance tracking, and interactive tools in one place.
No subscriptions. No limits. Just powerful, ready-to-use resources.
"The UK’s first fully free Computer Science daily practice platform with tracking, analytics, and unlimited students."
Daily Bytes (Core Feature)
Inspired by the popularity of 6-a-day — now fully online, auto-marked, and trackable.
• Daily question sets for consistent practice
• Instant auto-marking and feedback
• Performance analytics and progress tracking
• Topic filtering by curriculum area
• Student streaks to build habits
• Leaderboards to boost engagement
Start with 6-a-day… with more daily formats coming soon.
Built for Teachers
Create your classroom in seconds and track everything in one place.
• Create groups with unlimited students
• Assign daily practice instantly
• Monitor performance across topics
• Identify strengths and gaps at a glance
• No setup complexity, ready to use immediately
Track Progress That Matters
Go beyond right and wrong answers.
• Average scores and trends over time
• Question-level insights
• Topic-based performance tracking
• Clear, visual data for quick intervention
Interactive Tools & Mini-Games
Reinforce key concepts through quick, engaging activities.
• Binary Pixel Painter (4-bit colour grid creator)
• Number system conversion tools (Binary / Denary / Hex)
• ASCII & encoding challenges
Perfect for starters, homework, or enrichment.
Seasonal Coding Challenges
Home of the popular CSUK coding events.
• Advent & Easter Python challenges
• Daily unlock system
• Codeword rewards and progression
• Engaging, themed experiences students love
Designed for Engagement
Built to make Computer Science practice consistent, motivating, and effective.
• Encourages daily habits through streaks
• Gamified elements to boost participation
• Supports both classroom and independent learning
• Works for KS3 through to GCSE and beyond!
A Growing Playground for Computer Science
Bytes is constantly expanding — with new Daily Bytes formats coming (e.g. Algorithm-a-Day), new tools, seasonal events, and creative coding experiences added throughout the year.