From RTL
to GDSII,
in your browser
Write the logic. Shape the signals.
Bring digital and analog ideas to life.
Follow an idea into silicon.
See how the stages connect, then find your next lesson.
Your RTL.
A real layout.
Start with a multiply-accumulate block or bring your own small single-clock design. Watch synthesis, placement and routing, then download the SKY130 GDSII.
Try it nowFree to run. No sign-up. Includes scoped DRC/LVS checks; tapeout readiness is not established.
Put ideas to work.
Build from a specification, catch hidden bugs, or repair a failing design.
Browse problems Interviews · Coming soonExplain your design.
Practice the questions interviewers ask, with answers linked to the lessons.
See what is coming PlaygroundTry an idea.
Simulation, synthesis, SPICE, timing and RTL to GDSII. Five tools ready to run.
Choose a toolCode. Solve. Simulate.
The interactive path to design and verification learning.