IQcad

IQCad is a free 2D CAD application for civil engineering and tunnelling, built with Free Pascal/Lazarus for Windows and Linux.

Features:

25+ entity types (Line, Polyline, Arc, Circle, Spline, Hatch, Text, Dimensions, Table, and more)
AutoCAD-style command line with object snaps and grip editing
Modify tools: Move, Copy, Rotate, Scale, Mirror, Offset, Trim, Extend, Chamfer, Fillet
Layers, linetypes, blocks, and configurable styles

Civil Engineering:

TIN surfaces with contours and spot elevations
Survey points with CSV import and point groups
Tunnel section lines with deviation analysis
Horizontal alignments with curves and spirals

LandXML import/export
File Formats: DXF (R12/R2000/R2018), LandXML, PDF, PNG, SVG,DWG ( using ODA converter or Librecad dwg reader)
WMS server support

Point Cloud import export. Section along alignment

Modern ribbon UI with dark theme, multi-document tabs, and map background layers.

Features

25+ CAD entity types (Line, Polyline, Arc, Circle, Ellipse, Spline, Hatch, Text, MText, Dimensions, Table, Multileader, Multiline, 3DFace, Image)
Map background layers (OpenStreetMap, ESRI, custom)
LandXML import/export
Cross-platform: Windows and Linux (x86_64)
OpenGL + GDI rendering
Point Cloud

Project Samples

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Additional Project Details

Operating Systems

Linux, Windows

Languages

English

User Interface

KDE, Win32 (MS Windows)

Programming Language

Free Pascal

Related Categories

Free Pascal Mechanical and Civil Engineering Software, Free Pascal CAD Software

Registered

2026-03-22

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