Projects using Free Pascal

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English (en) فارسی (fa) polski (pl)


Warning: This page is currently being reorganised and split into category pages.

Business Software

See the Projects using Lazarus - Business Software page.

Components and Libraries

See the Projects using Lazarus - Components and Libraries page.

Databases and Tools

For databases and database tools, see the Projects using Lazarus - Databases and Tools page.

See also the Database Portal.

Developer utilities

For Developer utilities, see the Projects using Lazarus - Developer utilities page.

Editors and IDEs

For the Editors and IDEs, see the Projects using Lazarus - Editors and IDEs page.

Education and Scientific

Adnan Dictionary

Adnan dictionary is a light and freeware dictionary based on the database. It is available for both Windows and Linux and is intended for Arab users.


Albireo is a small-footprint astronomy software for hobby and amateur astronomers. Albireo can be used as an observation documentation and object identification tool. It should be working on any MS Windows based PC.

Dynamic Star Map


Ancestromania (Sources) is a fully LGPL genealogy software. It is user-friendly. You can import and export to Gedcom. You can export to Geneanet and to a web site. There is a great graphical tree, with fast classic trees. There are a lot of following documents.

Ancestroweb creates a static genealogy's web site. It is french, but can be translated easily. It is part of Ancestromania.

Ancestromania.jpg2012-04 Ancestroweb.jpg2012-05 Ancestroweb carte.jpg


ApertaQuem is an electronic ballot box for mock elections. Is available to create any candidate with photo from the webcam or file. Exclusive use for school environments. Sourceforge page

ASTAP / Astrometric STAcking Program

ASTAP is a free astronomy program for astronomical images. It contains an astrometric (plate) solver, does stacking of deepsky images, photometry and contains a FITS viewer. It works with astronomical images in the FITS format, but can import RAW DSLR images or XISF, PGM, PPM, TIF, PNG and JPG images. Available for Windows, macOS and several Linux versions. I addition to the GUI, it is used by several other astro-programs for astrometric (plate) solving using the command line mode.


CityCAT (City Catchment Analysis Tool), developed at Newcastle University, is a unique software tool for modelling, analysis and visualisation of surface water flooding. It enables rapid assessment of combined pluvial and fluvial flood risk and effects of different flood alleviation measures.


DMV The Diffusion Model allows for modelling response times. The Diffusion Model Visualizer explores the effect of the seven model parameters (a, z, v, t0, sz, sv, and st0) upon the response time density curves and positive/negative response probabilities. It supports interactive parameter change with immediate update of the diagram. The diagram can be stored to disk for further use (e.g., in an article or educational context). The program is freeware.


See the "The diffusion model visualizer: an interactive tool to understand the diffusion model parameters" (Journal Psychological Research; DOI: 10.1007/s00426-018-1112-6 [1]/ Article) for further information regarding technical details and usage.


EzberIM 1.4f Kelime EzberIM provides you with a simple and efficient way to memorize the translations of words in various languages. Test your skills and improve your vocabulary with the help of this reliable and handy piece of software in an easy and interactive manner.EzberIM Download

program cevap rapor.JPG

Also added some feautes for example picture samples, it gives a sentence with a picture also you can copy your pictures into directory.

Show Pictures As Sample.png

Final feaute is make a sentence with mixed words:

make sentences new.png

FREE!ship Plus in Lazarus

FREE!ship Plus in Lazarus is further development of the FREE!ship Plus (by ) Windows program based on the free source code FREE!ship v3.x under GNU GPL license. This FREE!ship Plus application is migrated into free open source Lazarus / Free Pascal environment to promote further development in various platforms and for various platforms (OS and architectures).


FREE!ship Plus is designed for the full parametric analysis of resistance and power prediction for a ship and other calculations of hydrodynamics of vessels and underwater vehicles. FREE!ship Plus allows the designer to simulate and analyze condition of balance of a complex completely hull - rudders - keels - engine - propellers in different regimes and of service conditions of a ship. The analyzable system includes a hull, appendages, a propeller and the engine (i.e. resistance, power, a thrust and a torque), and also various service conditions (heaving, a wind, a shallow-water effect, a regime of tow / pushing, etc...).


GroundCAD is new 2D CAD software for land surveying. working under windows,linux and mac os. GroundCAD supports many standard formats like : Ascii file(txt/csv),Autodesk dxf(ascii R12),Leica(gsi 8/16),Sokkia(sdr33) Topcon(fc4/gts7/xml/landxml),Google(kml) ...

groundcad.jpg layermanager.jpg main-window-linux32.png


Harmonux 0.1.4 Harmonic Analysis. Enter a table and get the harmonic function for the table. With the graphic of the points of the table and the function. Open Source GNU/GPL, pre-compiled for Linux and Windows.


HNSKY / Hallo Northern Sky

HNSKY is a free planetarium program to draw a map of the night sky for the amateur astronomer using a telescope. It shows the position of the stars, planets and moons, comets, minor planets and deepsky objects. The program can control a telescope. Available for Windows, macOS and several Linux versions.


Jubarte aims to create a complete application suite to calculate and analyse the viability of telecommunication links. Jubarte is able to calculate links using Radio, Optical Fiber and Satellites, in the newer versions capabilities to calculate auxiliary systems is being added. Jubarte is being developped in Lazarus enviroment and exist binaries for Windows, Linux and macOS.


LazBacterias is a program to simulate the growth of bacterial cultures using the rules of Conway's Game of Life.


LibreAquarium is a GPLv3 aquarium management system for Windows, Linux and Mac with a Simulation Model System that tries to predict the pollutants evolution using the recorded analytics, the algae risk and many other features (Tasks control, Expenses, Analitics, Statistics). LibreAquarium has been made with a quality design in order to make easier the user experience.


Libro is a cross-platform text analysis program written in Python and Free Pascal/Lazarus which scans a whole text file (in plain text, HTML, EPUB, or ODT formats) and ranks all used words according to frequency, performing a quantitative analysis of the text using Shannon-Weaver information statistic and Zipf power law function. It counts words, chars, spaces, and syllables. Also computes readability indexes (Gunning Fog, Coleman-Liau, Automated Readability Index (ARI), SMOG grade, Flesch-Kincaid grade level and Flesch Reading Ease).



Manuscript4u is an open source project to read and search on the original languages of the Bible and on the translations.

Manuscript4u: Bible search on original languages

It has unique and easy way to do research on words in Greek and Hebrew. Learn the meaning of the word without dictionaries by the way that word was translated.

In parallel, the original Hebrew/Aramaic (Old Testament) or Greek (New Testament) with your preferred translation.

It comes with Bibles in Hebrew/Greek and English, Portuguese, Spanish but you can download scores of other translations. The Bible files can be downloaded from the UnboundBible site in many languages and converted to the format used by the program with an included conversion program. Pre compiled for Linux and Windows.

Multi-language support. Currently English and Portuguese.

Strong's dictionary for the Greek with one click.

Links to sites like "The Blue Letter Bible" with further details about the word with one click.

Master Maths

Master Maths specialises in computer based training and maths. The 3rd incarnation of our flagship product is developed using Lazarus, Firebird, tiOPF v2 and the fpGUI Toolkit. The product has two parts. A GUI Administration application and a CGI Learner Browser (used to view and mark the teaching modules). The Learner Browser uses Adobe Flash extensively. The complete product runs under Linux and Windows.

Morse Machine

Morse Machine is an implementation of "A Fully Automatic Morse Code Teaching Machine" first described in a May 1977 QST article of the same name by Ward Cunningham using Lazarus. The program teaches Morse code by sending a character and waiting for you to type what you heard on the keyboard. It grades your score and adds new characters when it sees that you are ready. The program is released under the GNU GPL version 2. Due to its use of the sound card, this implementation is for the Windows platform.


MRIcroGL is an opensource project that uses the graphics card (using OpenGL) to visualize and volume render medical images. It is hosted on the National Institutes of Health (NIH) Neuroimaging Informatics Tools and Resources Clearinghouse (NITRC). It can view images saved in NIfTI (.nii, .nii.gz, .hdr/.img), Bio-Rad Pic (.pic), NRRD, Philips (.par/.rec), ITK MetaImage (.mhd, .mha), AFNI (.head/.brik), Freesurfer (.mgh, .mgz), and many DICOM (extensions vary) formats. It is available for Windows, Linux and macOS.



MRIcron is an opensource project that allows users to visualize and volume render medical images (MRI, CT, PET). It includes tools for lesion mapping, non parametric statistical analysis (npm), and conversion from the medical DICOM format to the scientific NIfTI format (dcm2nii). It is available for Windows, Linux and macOS.



Nest-o-Patch, software for the analysis of patch-clamp, two-electrode-voltage clamp and other electrophysiological data. Directly works with files created by HEKA Pulse or Patch-Master data aquisition software or with CSV and text files. Designed mostly for the analysis of single channel recordings, was nevertheless successfully used for whole-cell data analysis. Several academic papers were published with the use of this software.

nest-o-patch trace.png nest-o-patch amplitude histogram.png nest-o-patch levels analysis.png


OctaveGUI is a(nother) GUI frontend for GNU Octave.


Project homepage OpenSIMPLY is an open source free simulation software based on discrete event simulation approach.

The concept is suitable for a person of a different programming and simulation experience. Both style of simulation: blocks simulation and Simula-like simulation are available. Simula-models with some adaptation can be used as well.

The project is supplied with full documentation (HTML and CHM formats), insight help (pop-up hints) and tutorial with executable examples.

OpenSIMPLY can be used as a network simulation software, traffic simulation software and as a computer simulation software for educational purposes.

The project contains the Simply Memory Manager.

Learn more

OpenSIMPLY tutorial demonstration example


ProofTools automatically and graphically generates semantic tableaux, also known as proof trees, semantic trees and analytic tableaux, generally used to test whether a formula is a logical truth, or whether a proof/argument is deductively valid. ProofTools can generate proof trees for propositional, predicate and (normal) modal logic. It is available for Windows, Linux and macOS.

ProofTools screenshot


The RubiRobot project allows you to use Free Pascal and Lazarus for LEGO MINDSTORMS EV3 programming.

RubiRobotManager Example of PID controller


Signwriter is an Ancient Egyptian Hieroglyphic Word Processor and Language tool. It is designed for creating and editing texts stored in MdC format and would be of interest to students, professionals, and anyone with an interest in the Ancient Egyptian Language.


SimSEE is a platform for Simulation of Systems of Electrical Energy. Using SimSEE we can simulate the optimal operation of systems with hydroelectrical plants, hydro-reservoirs, fuel fired plants, wind farms and interconnections with other countries. The platform has a very sophisticated tool for modelling stochastic processes like river inflows, fuel prices, wind speed, etc. The software was developed in Spanish but we are working to support other languages (help is welcome).


SimThyr is a simulation program for the pituitary thyroid feedback control that is based on a parametrically isomorphic model of the overall system. It aims in a better insight into the dynamics of thyrotropic feedback. Applications of this program cover research, including development of hypotheses, and education of students in biology and medicine, nurses and patients.

Skychart / Cartes du Ciel

Skychart is a free software to draw a map of the night sky for the amateur astronomer from a bunch of stars and nebulae catalogs. It shows the position of the planets, simulates an eclipse and more.


SPINA is software for determining constant structure-parameters of endocrine feedback control systems from hormone levels obtained in vivo. The first version of this cybernetic approach allows for evualuating the functional status of the thyroid gland.


SysLinea 0.1.2 Solves Linear Systems and calculates Linear and Non linear Regression. It gives the Pearson and Spearman coefficients of correlation and the t-test. Open Source GNU/GPL, pre-compiled for Linux and Windows.

SysLinea 1.2 - Linear regression and non linear regression

Traverse Pro

Traversing is the type of survey in which a number of connected survey lines form the framework and the directions and lengths of the survey lines are measured with the help of an angle measuring instrument respectively. Traverse Pro is a freeware for calculation of single loop traverse. Traverse Pro desktop application especially designed for Civil / Surveyor. Traverse Pro2.png Traverse Pro.jpg

Turbo Circuit

[Turbo Circuit]] is a circuit drawing tool written in Lazarus / Free Pascal.

Unified Life Models

ULM (Unified Life Models) is an open-source software enabling the simulation and analysis of deterministic and stochastic discrete time dynamical systems for population dynamics modeling. It works natively on Windows, Linux and macOS.

Models are described using a simple declaration language, close to the mathematical formulation. The system can be studied interactively by means of simple commands, producing convenient graphics and numerical results.

screenshot ulm.png

Virtual Moon Atlas

Virtual Moon Atlas is software for lunar observation and study. It uses GLscene to give a realistic view of the Moon at any given location and time. The computations are done with the JPL ephemeris for extensive precision. It includes the most complete lunar formation database and picture library. The binary distribution is available for Windows, Mac and Linux.


Xoctave is a Human interface to GNU Octave. Xoctave encapsulates GNU Octave uses pipes and provides extra useful tools to make GNU Octave more easier to use. XOctave is written in Pascal using Lazarus front-end and Free Pascal (aka FPK Pascal) libraries. It uses synedit for syntax highlighting, and uses the Lazarus Component Library (LCL) is a set of visual and non-visual component classes over a Widget toolkit-dependent layer with multi-language support (English-Turkish)


ZCAD is a simple CAD program with support for file formats DXF.

Zcad.png simplecad.PNG


See the Projects using Lazarus - Games page.

See also the Game Development Portal.

Multimedia Projects

See the Projects using Lazarus - Multimedia page.

Utilities and Miscellaneous


Warning: Re-categorization and removal to new category pages in progress...

Heat Wizard

Heat Wizard is a command line and GUI tool for the conversion of the voltage of a thermocouple to a temperature and vice versa (for Win32, macOS, and Linux).


MouseWiggler is a simple application to periodically send message to make mouse move to prevent screen saver from executing (could be useful in a limited environment like a computer lab with auto logoff :p). The wiggle might not be visible because I give no delay between two messages to move the mouse from its current position to somewhere else and back.

MUTerm (Rs232 Terminal)

MUTerm 0.1.1 MUTerm is a Com Port communication tool for external devices like as Modbus RTU , ASCII etc. Also you can write your communication routine witwh pascal script. Main Screen Shot

Additionally some TCP functions (client and server) added yet. It can be work with internet or localnetwork Modbus TCP or Http. TCP Connection Screen

Server screen

tcp screen.JPG

MUTerm created with by Lazarus 1.0~1.6 Linux and Windows MUTerm Download


MyNotex is a free software for Gnu/Linux useful to take and to manage textual notes.

Screenshot of MyNotex 1.2.0 - en.png


Nom is an open source command tool by Marcus Fernström for OpenBD CFML projects.

  <-. (`-')_            <-. (`-')  
    \( OO) )     .->      \(OO )_ 
 ,--./ ,--/ (`-')----. ,--./  ,-.)
 |   \ |  | ( OO).-.  '|   `.'   |
 |  . '|  |)( _) | |  ||  |'.'|  |
 |  |\    |  \|  |)|  ||  |   |  |
 |  | \   |   '  '-'  '|  |   |  |  Version 0.1.6
 `--'  `--'    `-----' `--'   `--'
nom -c          Create a new OpenBD project
nom --create    Creates a folder and installs the latest OpenBD version
nom -r                        Runs the project with Jetty
nom --run
nom --open                    Used with -r/--run to open the browser when the server is ready
nom --deploy                  Deploys application with target, only Heroku implemented at the moment
nom --heroku                  Deployment target - Requires you to be logged into Heroku CLI tools
                              and have a [Heroku] section with a ProjectName=appname in the Nomolicious file
nom -h                        Shows this wonderful help
nom --help
nom -i              Downloads and installs a CFLib UDF to WEB-INF/customtags/cflib/.cfc with the same function name
nom --install       Example: nom -i IsWeekend. It's then available as a cfc from CFML
nom -s                        Creates nomolicious.ini file for the current project
nom --setup
nom -p                        Show information about the current project
nom --project


P.SEN is a utility to allow sending and receiving TCP and UDP packets and is available for Windows and Linux. It’s designed to be very easy to use while still providing enough features for power users to do what they need. It is completely free (no ads / no bundleware) and opensource. Some knowledge of a basic network protocols is a prerequisite to using it. Beyond that, P.SEN was designed to be very easy to use.

P SEN 003.png


PasDoc (webpage) is an open-source documentation generator for ObjectPascal source code. It reads documentation from comments in your source code (an option to read it from an external file is also available), and generates nice docs in HTML, LaTeX or other formats. We have a console program, and a cross-platform GUI version using Lazarus.


PasMonTray is an open-source CPU and memory usage monitor that sits in the system tray. Uses TrayIcon and various Win32 api calls.


PasViz is a developer utility for automatically generating unit dependency diagrams based on pascal source code. This project is tested on macOS and Windows, and should work on Linux with very minor adjustments. Requires GraphViz (or other software that can view .dot files) for viewing the graphs.

Project PouchHiker

PouchHiker is written in Lazarus, using KOL-CE and lNet. PouchHiker lets you connect and participate in the gps-carpool network (

Project Theseus

Tom Lisjac's Project Theseus is using Lazarus and FPC for creating a rapid deployment and distribution system for Linux called Epik-Builder. EpikStopwatch and EpikBrowser are also Lazarus based projects that are currently under development.


recALL is free and portable multifunctional password recovery and auditing solution for Windows - instantly finds and recovers passwords from more than 200 popular applications (FTP, E-mail clients, Instant Messengers, Browsers, etc) and recovering licenses from over 2800 programs. Entirely written in Free Pascal and Lazarus.


QFront is a platform independent frontend for the CPU Emulator QEmu


QueryIt includes two functions; one is an AddressBook, another is an URL Collector. Screen Shot-01 Screen Shot-02 Screen Shot-03 Screen Shot-04 Screen Shot-05 Screen Shot-06

SFS Technology

SFS-Technology solves dependency problems on a Debian/Ubuntu/Linux Tiger operating system.

Shell for Gammu (Mobile Phone Tool)

The Gammush Site offers hardcopies and downloads for this application. Gammush is a shell for gammu.exe. It allows to backup/restore your phone data, get, edit, put logos, set date+time, send sms messages etc.


Siages is an ERP application made with Lazarus.


SimpleGit is a cross platform user interface for the popular configuration management system git for Linux, Mac and Windows. SimpleGit doesn't use any of the language of git, it just explains changes, conflicts and resolutions in simple ways with no learning curve between platforms interacting with a hub like GitHub, GitLab or Stash to make using Git easy.

Clone a repo on Windows Make a change on Linux Resolve a conflict on Mac


Update: It might be awhile until I update it again.

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Screen Shot 02-15-18 at 09.30 AM.jpg

Screen Shot 02-15-18 at 09.29 AM 001.jpg

Grabs Web images at set intervals and makes them the Windows desktop.

  • Sources include
    • G16 Full Disk Natural Color
    • G16 Full Disk GeoColor
    • G16 Full Disk Band 13 (10.3um)
    • G16 CONUS Natural Color
    • G16 CONUS GeoColor
    • G16 CONUS Band 13 (10.3um)
    • H8 Full Disk Natural Color
    • H8 Full Disk GeoColor
    • H8 Full Disk Band 13 (10.3um)
    • SDO : 512
    • SDO : 1024
    • SDO : 2048
    • SDO : 4096
    • NASA Astronomy Picture of the Day
    • NASA Earth Observatory Image of the Day
    • NASA Image of the Day
    • Real-Time Sky Map (
    • Verse of the Day (

Also has a built-in telescope calculator


More info at Astronomy Forum Thread

Sun Simulator

The sun simulator changes the gamma/brightness/color setting depending on the time and date. It is supposed to synchronize the color of the display to the color of the sun light outside, but before it can do that, you have to manually set your preferred color for some fixed times (e.g. noon, dawn, night). (Windows only)

tomboy-ng notes

A note taking app that works and syncronises between Linux, Windows and macOS. It will also Sync to Tomdroid on Android. It features a rich text markup, printing, spell check, backup and snapshot capability. Import and export (plain text, RFT, MarkDown). It has Tomboy's automatic linking between notes, searching abilities, NoteBooks and a similar interface.

Inspired by the original Tomboy Notes but without its hard (to impossible) dependencies on GTK and Mono is a great example of just how good FPC/Lazarus really is.


Transmission Remote GUI

Transmission Remote GUI is a feature rich cross platform front-end to remotely control a Transmission Bit-Torrent client daemon via its RPC protocol. Transmission Remote GUI is faster and has more functionality than the build-in Transmission web interface.

Turbo Dictionary

Turbo Dictionary is a It is a english to turkish dictionary. It is a GPL licensed software.

Turbo Postman

Turbo Postman is a It is a mass mail sending tool. You can use a text formatted file or a MySQL database for mail sending list. It is a GPL licensed software.

Turbo Talker

Turbo Talker is a Network messaging tool with DES encryption support. You can configure port number and 8 byte DES key. It is peer-to-peer application. It is licensed under GPL license.

Ubuntu Control Center

Ubuntu Control Center or UCC is an application inspired by Mandriva Control Center and aims to centralize and organize in a simple and intuitive form the main configuration tools for Ubuntu distribution. UCC uses all the native applications already bundled with Ubuntu, but it also utilize some third-party apps like "Hardinfo", "Boot-up Manager", "GuFW" and "Font-Manager".

Virtual Magnifying Glass

Virtual Magnifying Glass is designed for visually-impaired and others who need to magnify a part of the screen. Unlike most similar programs it does not open a separate window for the magnification but instead puts a movable magnifying glass on screen. The project was converted from Visual Studio .NET to Lazarus and now offers a Linux version. macOS and Pocket PC versions are planned.


WandS (Wake and Shutdown) is a program for webmasters or sysadmins for taking control of servers at datacenters. With WandS, you can shutdown or wake up any server or server group at any time through SSH or SMB.


Wi(n)Xtap (formed by the words Windows XP Vista) was a program created for early versions of Lazarus. This program allowed the creation of the .manifest file so to set up a graphical theme to your application and it allowed the user to define a customized icon. This program is useless since 0.9.24 because those features have been implemented into the IDE itself. Stable releases of Wi(n)XtaP where the 4.0 beta, 5.0, 6.0 and the latest 6.1 (fixes of 6.0). Further plans to expand its capabilities are temporally blocked.


WikiHelp is a small tool that generates HTML pages from a Wiki. It downloads the content automatically and convert the WikiText pages into HTML. Most WikiText features are useable including images, tables and so on.

Win32 API Manager

The API Manager is a very old program giving a GUI for Win32 API functions. It can do everything there is an API function for, e.g. list all processes, change their priority or kill them; list all windows and change their attributes (e.g. change a password, edit to a normal, readable edit) ... It was originally written with D4 for Win98, but I ported it to Lazarus and added support for NT-platform functions. So, it should still work nowadays.


The WindSirf application reads and displays files from the GTS-31 GPS. Initially it is aimed at windsurfers, but may expand its capabilities. The initial release is for Win 32 only.


A platform independent command line tool to download webpages and extract data from them, using XPath 2 / XQuery expressions, CSS 3 selectors or custom pattern-matching templates. It is kind of an example for my internet tools.

Educational software


irMouse unites a customized USB webcam and a projector so that user can use a simple infrared marker as an input device thus emulating mouse. Suitable for educational purpose, presentations etc.


Hobby software

Golfml Applications

Golfml Applications are aimed at golfers and golf course managers. The purpose of GolfML is to provide a XML-based file format for the exchange of golf-related data. CourseWriter is an application for easily authoring golfml files and editing them. Golfml Reader is to display and test golfml data files. USGA/EGA Calculator has various golf handicapping functions, and uses golfml data files. Executables for Linux 64 and 32 bit and Windows 64 and 32-bit. Source code for all applications.


[Spacegetti (download) Grabs Web images at set intervals and changes the Windows wallpaper to Geos 16 (Earth color) and SDO (Sun) images every 10 minutes depending on what you select. Also has a built-in telescope calculator. More info at Astronomy Forum Thread



Dedalu is a collection of small and simple projects developed in Lazarus by Giuseppe Ridinò (aka Pepecito). They are games, editors, utilities, etc.

Free Pascal Operating System

Interested in developing an OS with Free Pascal? This project can be used as a starting point (though incomplete and YOU ARE WELCOME to complete it :-)). Download it here( Another interesting project developed with Free Pascal called TORO can be found at: TORO: (

User utilities

For User utilities, see the Projects using Lazarus - User utilities page.

Web software

For web-related software, see the Projects using Lazarus - Web page.

See also