Free drawing software for Windows, Mac OS X, and Linux
Dia Diagram Editor is free Open Source drawing software for Windows, Mac OS X and Linux. Dia supports more than 30 different diagram types like flowcharts, network diagrams, database models. More than a thousand readymade objects help to draw professional diagrams. Dia can read and write a number of different raster and vector image formats. Software developers and database specialists can use Dia as a CASE tool to generate code skeletons from their drawings. Dia can be scripted and extended using Python.
Cross-platform Open-source 2D CAD
LibreCAD is an open-source cross-platform 2D CAD program, which is translated in over 30 languages. http://translate.librecad.org LibreCAD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. License: https://www.gnu.org/licenses/gpl-2.0.html Source: https://github.com/LibreCAD/LibreCAD/releases Track the latest development: https://github.com/LibreCAD/LibreCAD/milestones https://github.com/LibreCAD/LibreCAD/commits/master Create bug reports and feature requests: https://github.com/LibreCAD/LibreCAD/issues Get help: - http://forum.librecad.org - http://wiki.librecad.org
A graphical network simulator to design and configure virtual networks
GNS3 is a graphical network simulator that allows you to design complex network topologies. You may run simulations or configure devices ranging from simple workstations to powerful Cisco routers. It is based on Dynamips, Pemu/Qemu and Dynagen. Go to GNS3.com for last releases.
A circuit simulator with graphical user interface (GUI)
Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported.
Scanning probe microscopy data visualisation and analysis
A data visualization and processing tool for scanning probe microscopy (SPM, i.e. AFM, STM, MFM, SNOM/NSOM, ...) and profilometry data, useful also for general image and 2D data analysis.
Cross platform GUI for Maxima
wxMaxima is a cross-platform graphical front-end for the computer algebra system Maxima based on wxWidgets. It provides nice display of mathematical output and easy access to Maxima functions through menus and dialogs.
PHP Document Management System (DMS)
OpenDocMan is a web based document management system (DMS) written in PHP designed to comply with ISO 17025 and OIE standard for document management. It features fine grained control of access to files, and automated install and upgrades.
Real time satellite tracking and orbit prediction
Gpredict is a real-time satellite tracking and orbit prediction application. Gpredict can track an unlimited number of satellites and display the data in tables and various graphical view.
EdytorNC is text editor for CNC programmers. Some features : bolt holes calculation; solutions of triangles calculation; speed, feed calculation; conversion inch/mm, mm/inch; code colouring; RS232 data transmission with automatic file saving and possibility to download new CNC program directly from machine (beta function, look in tool tips in serial port configuration dialog). Clipboard to keep texts from system clipboard.
Open Source Enterprise Wiki and Web Application Platform
Enterprise collaboration platform with over 400 extensions. Users without programming skills can create web applications. 50,000 small businesses, many Fortune 500 companies, and millions of people use TWiki, with installations of 100,000s of pages. Visit http://twiki.org/ for the open source TWiki. The TWiki community is focusing on building the best collaboration platform for the workplace. We invite you to GET INVOLVED! More at http://bit.ly/twGetInv.
Simple Online Planning
SO Planning is a Simple Online Planning tool. Allows you to plan working periods for each person of your team, in a visual / printable result. Shows a line by person and the corresponding working days. See http://www.soplanning.org for details.
PLC-Logger and Analyzer
Use PLC-logger to store and analyze data from almost every PLC-system. The following PLC-Systems are accessible: - Every PLC-System running a Modbus-TCP / Modbus-UDP Server - Siemens S7 via IBH NetLink - Siemens S7 with Ethernet-Interface - Codesys-based PLC-Systems - via OPC-Servers V0.61: - Bugfixes V0.60: - Some Bugfixes - Some data evaluation V0.59: - Modbus TCP Server Simulator supports Modbus UDP - Possibility to set bookmarks V0.57: - Modbus UDP supported - Edit configuration from connection-manager - Configuration keeps selected after starting or stopping V0.56 HF1: - Bugfix executing EasyModbusTCP Server Simulator V0.56: - Integration of EasyModbusTCP Server Simulator in "Tools"-Menue - Improvements in Modbus-Connection Wizard - Modbus Addresses shifted by (-1) to meet Modbus specification
OSS MEgasquirt, LibreEMS, JimStim tuning software
MegaTunix is a cross-platform tuning application for some of the available DIY Fuel Injection controllers, including the MegaSquirt (MS1, MS1-Extra, MS2 and MS2-Extra) as well as the LibreEMS EFI system and the JimStim ECU stimulator/development tool.
Another drawing editor for LaTeX with PSTricks & TikZ
jPicEdt is an extensible internationalized vector-based drawing editor for LaTeX and related packages (TikZ, PsTricks,...), written in Java. It is also a library of reusable high-level graphic primitives.
Open Factory 3D is a free factory design application that helps you to place your machines and factory equipment on a factory 2D plan, with a 3D preview.
Fachwerk calculates strut-and-tie models used by structural engineers for analysing and designing reinforced concrete structures. The program only uses the equilibrium conditions, thus it is not assuming elastic behaviour.
show and edit eulumdat files
Eulumdat_3D the better Eulumdat viewer and editor. You can view ldt files as 3D ,compare two luminaires, print a simple datasheet. From given light distribution you can create different ldt files depending on light flux and CCT
Requirement Heap is a web based requirement management /business analysis application. It allows to enter requirement in rich text, supports versioning and the management of requirements. It also handles use cases, interviews and test cases. It allows multiple projects. Stakeholders and glossaries can be handled per project or globally.
the easy to use and simple to install social community system for your company, family or friends. runs on every php/mysql-configuration, also on shared hosts. protect YOUR data an host YOUR community by your self!
Fachwerk3D calculates three-dimensional strut-and-tie models used by structural engineers for analysing and designing reinforced concrete structures. The program only uses the equilibrium conditions, thus it is not assuming elastic behaviour.
Portable feed & speed calculator for turning and milling
The Feed Calculator is a small program to calculate the feed and spindle speed for turning and milling machines.. The help provides an excerpt of the machining tables which propose cutting speeds and feed per edges for various tools, especially for small machines and modeling. With this data, you can easily find the working parameters for your job on numeric controlled machines. For easier use, you can customize the tool table (number of edges) to your own tool rack.
a tool for process identification and controller design
ePICC (easy Process Identification and Controller Configuration) is a Open-Source-Solution for quick controller configuration on Siemens SIMATIC S7-PLCs. It creates a mathematical model of the process and let you choose from a variety of controllers.
The sigrok project aims at creating a portable, cross-platform, Free/Libre/Open-Source signal analysis software suite that supports various device types, such as logic analyzers, MSOs, oscilloscopes, multimeters, LCR meters, sound level meters, thermometers, anemometers, light meters, dataloggers, function generators, power supplies, GPIB interfaces, and more.
CAFM open source framework
SmartDataBees is an database management suite, which could be used for facility management. It is based on a plugin-framework. With SMARTDataBees you can: - manage your facilities (CAFM / FM) - write your own plugins to add your functionality - connect your BIM / CAD product to SMARTDataBees database SMARTDataBees currently supports DBMS: - MySQL, MS-SQL, SQLight
Ein Mesh-Generator, mit dem man ein zweidimensionales mesh erstellen kann, um es später in Elmer für eine Simulation zu verwenden.