CAD freeware downloads

primesieve for Mac OS X

7.5 freeware download

Optimized sieve of Eratosthenes implementation

primesieve x64

12.3 freeware download

Optimized sieve of Eratosthenes implementation

Pro Yacht

1.0.0.1 freeware download

CAD, Geometry and Analysis for Naval Architects, Yacht Designers and Modellers

Prode Valves

1.08 freeware download

Design, sizing, rating and automatic selection of control, safety, relief valves

ProfiCAD

12.4.4 freeware download

Software for electrical diagrams, schematics and other technical documents

Projectile Motion (Galileo and Newton)

freeware download

A Java-based software that can run on multiple platforms

pRPN

0.5.5 Beta freeware download

Graphical Reverse Polish Notation calculator

pRPN for Linux

0.5.5 Beta freeware download

Graphical Reverse Polish Notation calculator

PsychroCalc

1.1.0 freeware download

PsychroCalc is an advanced psychrometric property calculator for HVAC

PyCogent

1.5.3 freeware download

Analyze genome sequences with this Python tool

PyMCA

5.5.5 freeware download

Set of applications implementing most of the needs of X-ray fluorescence

PyMCA for Linux

5.5.5 freeware download

Set of applications implementing most of the needs of X-ray fluorescence

PyMCA for Mac OS X

5.5.5 freeware download

Set of applications implementing most of the needs of X-ray fluorescence

PyNcView

0.99.8 Beta freeware download

An easy-to-use graphical user interface to the creation of animations

PyPedal

2.0.3 freeware download

Manipulate your pedigrees with this application

PyPedal for Linux

2.0.3 freeware download

Manipulate your pedigrees with this application

PyRx

0.8 freeware download

Specially designed for Computational Drug Discovery

QFitsView

8.6 freeware download

Powerful astronomical imaging and data visualization software for researchers.

QGIS

3.36.1 freeware download

Lets you browse and create map data on your computer

QGIS for Linux

3.36.1 freeware download

Lets you browse and create map data on your computer

QGIS for Mac

3.36.1 freeware download

Lets you browse and create map data on your computer

QSapecNG

2.0.0 Beta freeware download

Designed to help you with symbolic analysis of linear analog circuits

QSapecNG for Linux

2.0.0 Beta freeware download

Designed to help you with symbolic analysis of linear analog circuits

QtGrace

0.2.6 freeware download

Display or plot data, analyze data and prepare it for printing

QtGrace for Linux

0.2.6 freeware download

Display or plot data, analyze data and prepare it for printing