GstarCAD vs TinyCAD

GstarCAD is 2D and 3D CAD software for working with technical drawings. It supports native DWG and DXF files, and the maker describes it as compatible with AutoCAD data formats. Its toolset includes more than 100 tools, such as Area Table, Auto Layer, Viewport to Layout, and AutoXlsTable. The maker says multi-core processing is designed to handle complex drawings with faster processing and less lag. GstarCAD 2027 adds Dynamic Block Parametric Constraints, Automatic Input Method Switching, and floating drawing windows. The developer environment supports LISP, C/C++, VB/VBA, and.NET, along with COM and GRX APIs; the maker says LISP and VBA applications can run without modification. A perpetual license provides lifetime usage rights, and yearly subscription and upgrade licensing are also offered. Plans listed for GstarCAD 2027 start at $239 a year, with prices excluding VAT and service fees. A free 30-day trial is available, but there is no free plan.

TinyCAD is an open-source program for drawing circuit schematics, available as desktop software and TinyCAD Web. The browser version needs no installation, and both versions use the same .dsn drawing and .tclib library formats. Drawings can span sheets and include labels, buses, shapes, annotations, and automatic junction placement; search, undo, and redo are also available. Both versions can import symbols from KiCad.

A Design Rules Check flags common wiring and pin-type errors, but it cannot confirm that a circuit works correctly. TinyCAD can create netlists for downstream tools, including PADS, Eagle SCR, Protel, and gEDA PCB formats. Both versions support SPICE output and SVG export; browser PDF export is available, while VHDL output is desktop-only. In local-file mode, TinyCAD Web keeps work in the browser and sends no work or other files to TinyCAD servers. Google Drive mode stores drawings in the user’s Drive and requires permission to access Google files. TinyCAD is free and supplied as-is; the project advises backing up work and checking designs carefully.