Bitlens

Build your own IDE · from bits to transformers

Take the computer apart, one instruction at a time.

Write a program, compile it to bytecode, and step through a real virtual machine. Click any value to see its 64 bits. Then climb from floating-point rounding to backpropagation, Adam and attention, running every formula yourself.

Start the journey
Lesson
Code
Output

        
Bytecodehover a row to see its source