Get Sigdraw
A native app for macOS and Linux — no account needed to open the editor. Every version ever shipped stays hosted, so you can take the newest or pin an older one on purpose.
Sigdraw is a native desktop IDE for macOS and Linux. It reads the VCD your simulator already writes — Verilator, Icarus, xsim, GHDL, NVC — and puts the values on the wires, so you debug by looking at the circuit. This site needs JavaScript for the interactive demos; the pages below describe the product:
- Sigdraw Desktop — the native RTL IDE for macOS & Linux
- Diagrams — RTL schematics drawn one-to-one from your source
- Simulation — your waveform, projected onto the design
- Plugins — the downloadable plugin catalog
- Pricing — free 14-day evaluation, Pro, and Enterprise
- Download — get Sigdraw for macOS & Linux
- Book a demo — see Sigdraw on your own RTL