Open Source Solid Modeling CAD
BRL-CAD is a powerful cross-platform constructive solid geometry solid modeling system that includes an interactive geometry editor, ray-tracing for rendering & geometric analyses, network distributed framebuffer support, image & signal-processing tools.
Chess Database and Toolkit program
"Shane's Chess Information Database" is a huge chess toolkit with extensive database, analysis and chess-playing features. Scid vs. PC is a usability and bug-fix fork of Scid. It has extensive interface fixes and improvements, and is fully compatible with Scid's .si4 databases. It's new features include a rewitten Gamelist, a Computer Tournament, and FICS, Tree and Book improvements.
MSN compatible messenger application
A very nice MSN compatible messenger application, aMSN Messenger is a multiplatform MSN messenger clone. Works pretty much like its Windows based counterpart. Perfect for keeping in touch with those friends who have not yet seen the light. Works on linux
The "Img" package adds a lot of image formats to Tcl/Tk.
Video mixer for mixing live and recorded video and audio feeds
New version 0.5.1 Released February 9th 2016. Snowmix is a Swiss army knife tool for mixing live and recorded video and audio feeds. It supports 2D and 3D clipping, scaling and transparent overlay of video, png graphics and text. It supports animation of video, images and texts through native commands changing scale, placement, transparency and rotation. Animation and actions can also be controlled through native scripting and an embedded Tcl interpreter. Snowmix is designed for control over low bandwidth links and can work as a standalone CLI based program. Control over both CLI and a TCP connections. Input and outputs can be done through GStreamer pipelines or the GStreamer shmsrc/shmsink API. OS X on Intel and Linux on amd64/i386/i686/ARMv7 and FreeBSD on amd64 supported. Ubuntu/Fedora/Mint/Debian/Chakra/CentOS/OpenSUSE and Linero is supported. Free support in the discussion forum. See Snowmix in action on Youtube http://www.youtube.com/user/Snowmix4video
System dynamics program with additional features for economics
Minsky enables the simulation of models (particularly from economics) defined in terms of coupled ordinary differential equations. The models are defined using a drawing canvas (rather like VisSim), and a double entry bookkeeping system known as a Godley table.
ChessDB is a free open-source chess database for Windows, Linux, Mac OSX and most UNIX and UNIX-like operating systems. ChessDB is based on code from Scid http://scid.sourceforge.net/ - a project for which there have been no updates for several years. In
Ayam is a free 3D modelling environment for the RenderMan interface.
Earth orbits and coverage display in 3D on your laptop.
SaVi - simulate Iridium, Globalstar, O3b, Sirius Radio, GPS, Galileo and other satellite constellations, modify them, or design your own. Uses Tcl/Tk and Unix libraries; 3D viewing option requires Geomview running on X Window.
eTktab edits 4/5/6/7 string ASCII tablature. Features: 30 fretboard positions available via single keypress, lyrics, expression marks, etc.
TkGate is a event driven digital circuit simulator with a tcl/tk-based graphical editor. TkGate supports a wide range of primitive circuit elements as well as user-defined modules for hierarchical design.
Tcl/Tk Aqua Batteries-Included is a binary distribution of the Mac OS X native Tcl/Tk and many popular extensions.
Ballroom Music Player
BallroomDJ is a ballroom music player. It is designed with the goal of being able to play music the entire evening without intervention.
EMU is a collection of software tools for the creation, manipulation and analysis of speech databases. At the core of EMU is a database search engine which allows queries based on the sequential and hierarchical structure of the annotations.
LensOSX: the light, efficient network simulator
Lens is the light, efficient network simulator, written by Doug Rohde. LensOSX is a native MacOSX port of Lens that runs on MacOSX 10.5 or higher, created by Harm Brouwer, Daniel de Kok and Hartmut Fitz.
Netwag provides a graphical interface to network testing functionalities.
vmdStore provides a user-friendly interface to free install VMD plugin
vmdStore provides a user-friendly interface to free install VMD plugins. vmdStore also helps you keeping the plugins always updated. Minimum Requirements Operating System: macOS, Linux, or Windows Visual Molecular Dynamics (VMD) 1.9.3 or later
POS,Sale, Invoice, Stock
A completely free, fully customizable and beautifully designed business management system that allows you to keep track of your money, sales, customers, products and stock in an easy and user friendly environment on any operating system. DAIDZE POS is completely free and available for download. "Daidze” is also an open-source rapid development framework written in TCL/Tk. It's a well designed and tested foundation structure for programmers to create database applications. Our primary objective is to enable you to work in a well structured and rapid development manner without the loss of flexibility. "DAIDZE" will provide you with all the tools you need to start creating your own software. "DAIDZE" has an active development team and community, providing great value and upgrades to the project, by using it you'll be keeping your application's core well tested and constantly modern.
Yet Another Diff Tool
YaDT - Yet another Diff Tool. It is another front-end for diff and in earlier versions diff3 utility. With YaDT you can compare and merge 2 and/or 3 files. YaDT is written on Tcl/Tk and wrapped in a single executable file with the help of sdx and tclkit. diff and cvs utilities are embedded inside YaDT. Also, YaDT supports Git and Mercurial repositories, but git and hg are not embedded inside YaDT, you should have git/hg executable in your path environment.
Toggle Styling for ttk::checkbuttons
ttk::checkbuttons with a toggle display. Supports all 22 styles and also the graphite appearance for the Mac OS X aqua theme. Includes multiple image sizes and will use the appropriate size as indicated by `tk scaling`.
A combination of useful tools for High School classes, including math classes ranging from prealgebra to calculus, and science classes ranging from IPS to AP Physics.
A tool that handles the ooky programming part of designing of toolbar icons for OpenOffice.org, NeoOffice, and StarOffice. Meant to assist non-programmer types (and graphically inclined folks) to design their own interfaces.
Pansophica is an intelligent web search agent that presents results in a dynamic and interactive virtual reality. Twist, fly and play the net.
crossplatform, free dict.org dictionary lookup app in tcl/tk
Tickle Dictionary, or Tickle Dict, is a tcl/tk online dictionary look-up tool with access to 48 dictionaries and other resources and added features: change colors and font size for reading comfort, save definitions to file, select and copy text from definitions, etc.
A library to process X-ray images from the Heimann imaging system. The XGray library has interfaces to C++ and Tcl and includes the graphical program XRayLab, which is written Tcl.