Byter: Swipe & Code

Sharpen your code, one swipe at a time. AI-generated problems matched to your specialty, instant feedback from Cody, and an ELO that proves you're getting better.

Byter helps you build real engineering skill in the AI era.

AI can write code. Strong engineers still need judgment: debugging, architecture, tradeoffs, performance, systems thinking, and clear reasoning. Byter turns idle moments into focused practice with swipeable, bite-sized challenges designed to sharpen the skills that matter on real teams.

Choose a specialty and start solving across high-impact fields like algorithms, backend systems, frontend engineering, mobile, cloud, data platforms, AI/ML, cybersecurity, robotics, game development, fintech, and more.

Practice Beyond LeetCode

Byter is not just another coding question bank. You’ll face multiple challenge formats that mirror real engineering work:

• Implementation: write clean, working solutions • Code Review: find bugs, security issues, and performance problems • System Design: build scalable architectures with graph-based answers • System Improvement: fix broken architectures and improve data flow • Multiple Choice: test concepts, tradeoffs, and engineering judgment

Built for Fast, Focused Practice

• Swipeable problem feed for quick daily reps • In-app code editor with language-aware solving • Graph builder for system design challenges • Instant AI grading and feedback • Multiple attempts to improve your score • Daily Challenges, streaks, and leaderboards • Cody, your AI mentor, for guided help when you’re stuck • Skill insights across your specialties and progress over time

Practice in the languages and domains you care about. Build stronger instincts one problem at a time.

Stop scrolling. Start building.

Download Byter and master the engineering skills AI can’t replace.

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