Included in this release
- Multiple schematic pages, save/reopen, selection, movement, rotation and undo/redo.
- A floating palette with 31 component symbols, including LED, resistors, capacitors, coils, transformers, BJT, FET, IGBT, SCR, triac, IC, GND, VCC/VDD and page connectors.
- Wire, bus, junction and label tools; direct printing and Microsoft Print to PDF.
- InternetSQL 1.25 SDK release 2026-09-20.3, installer, sample schematic and detailed offline manual with a tested parts-library SQL tutorial.
Install
- Extract the whole ZIP.
- Run
install.cmd. The default installation is under%LOCALAPPDATA%\Programs\RayyanCAD. - Start RayyanCAD from the Start menu or
Run-RayyanCAD.cmd.
The installer creates isqldbhome beneath the CAD install root and adds both binary directories to the user PATH. Open a new terminal to use the updated PATH. A custom installation path is supported; see the manual.
Development status
This is a schematic drawing development release. Electrical connectivity, netlists, simulation, PCB layout, custom symbol editing and database-linked component placement are not implemented yet. Some menus remain placeholders. Library creation and record editing currently use the included SQL tools; adding a library record does not add a palette symbol.
Verify your download
Compare the ZIP with its SHA-256 file, or run PowerShell:
Get-FileHash .\RayyanCAD_0.1.0-dev_Windows_x64_2026-09-28.zip -Algorithm SHA256
Expected SHA-256:
a6e9f10212cb5999760e21ef0b210fc1683e02e00bac54b0731f034b19bb6739
Full manual: installation, drawing, printing, parts libraries, backups and troubleshooting