LearnBug lets you watch your code execute step-by-step. See variables update, loops iterate, and logic branch in real time. Stop guessing why your code breaks — start seeing it.
Run code line by line, visualize variables and memory, and let LearnBug's AI explain errors, logic flaws, and performance improvements as your code executes.
Most platforms show outputs. LearnBug shows execution — logic flow, variable changes, memory states, and exactly why your code behaves the way it does.
Whether you're just starting out or prepping for FAANG — LearnBug makes code finally make sense.
Programming concepts finally "click" when you can see them execute. No more staring at code wondering what's happening — watch it run and understand instantly.
Debug faster and build confidence in your logic. See exactly where your code diverges from what you intended — and fix it with clarity instead of guesswork.
Understand DSA algorithms instead of memorizing them. Watch sorting, tree traversal, graph search and recursion execute step by step — and actually understand why they work.
Teach code in a way that students actually grasp. Visual execution makes abstract concepts concrete — perfect for classrooms, bootcamps, and online courses.
Execute programs line by line and visualize how variables, loops, and memory change in real time.
LearnBug doesn't just show errors — it explains logical issues, infinite loops, and optimization opportunities.
From writing code to truly understanding it — LearnBug makes the entire process visual and intuitive.
Use the interactive editor to write solutions or experiment with real-world examples.
Visualize execution flow, variable updates, and memory states as your program runs.
Get instant explanations for bugs, logic flaws, and performance improvements.
Oh… THAT'S why my code breaks.
Most users experience this the first time they use LearnBug. Once you can see execution clearly — you stop guessing, stop blindly fixing, and start thinking like a real engineer.
Start free and upgrade as you unlock advanced AI insights and execution tools.
Everything you need to know about LearnBug.
LearnBug is a visual code debugger that lets you watch your code execute step-by-step. See every variable update, loop iteration, and condition branch in real time — so you finally understand what your code is actually doing, not just what it outputs.
Traditional debuggers are powerful but not intuitive — you jump between breakpoints and reconstruct execution in your head. LearnBug makes execution visual and immediate. It's like pressing play on your code instead of looking at one frame at a time.
Yes! LearnBug has a completely free plan. You can start visualizing your code immediately with no signup required. Paid plans unlock advanced AI features and team tools.
Absolutely. LearnBug is especially powerful for interview prep because it helps you deeply understand algorithms instead of memorizing them. Watch sorting, tree traversals, graph searches, and recursion execute visually.
LearnBug currently supports Python with more languages coming soon. The visual execution engine covers all fundamental programming concepts — loops, recursion, data structures, memory.
LearnBug was built by developers who experienced the same frustration — writing code that should work but breaks in ways that are hard to see. The real gap in programming education isn't syntax or logic — it's visibility. LearnBug solves exactly that.
Writing code is easy. Understanding it is the real skill. LearnBug is built for exactly that.