Open Source Free Pascal Software

The Lazarus IDE is a stable and feature rich visual programming environment for the FreePascal Compiler. It supports the creation of self-standing graphical and console applications and runs on Linux, FreeBSD, MacOSX and Windows.

Double Commander is a cross platform open source file manager with two panels side by side. It is inspired by Total Commander and features some new ideas.

SkyChart is a software to draw chart of the night sky for the amateur astronomer from a bunch of stars and nebulae catalogs. See main web page for full download. This software is part of a full suite for astronomical observation: https://sourceforge.net/projects/ccdciel/ https://sourceforge.net/projects/indistarter/ https://sourceforge.net/projects/eqmodgui/ Requirement: https://sourceforge.net/projects/libpasastro/ See also: https://sourceforge.net/projects/indi/

User friendly wizard-based program for extraction of 180+ archive types, including encrypted files (7Z, ARC, PEA, RAR, ZIP, ZIPX) and spanned multi-volume archives (001, R01, Z01), spin-off of PeaZip project. Drag & drop any file on the application to extract it (if supported) or to attempt unpacking of unknown formats and variants. The minimal GUI is meant to keep working with archive decompression as simple as possible. It is primarily targeted to users with no prior experience in handling archive files, or not needing advanced archive management features such as in-archive browsing and search, creation and conversion of archives, etc.

The Avocado language is compiled and currently allows for the creation of console applications. Work on Avocado and the integrated development environment (IDE) began on February 19, 2025. A unique feature of this language is the ability to write commands in Polish and English, compiling code into .exe format. The language is freely available for commercial and non-commercial projects. The Avocado source code is available under the MIT License on GitHub. Avocado is transpiled to Free Pascal and then compiled by the FPC compiler, making it as fast as C or Rust, but with syntax reminiscent of Python. The Avocado IDE interface has been translated into 30 languages Official website: https://avocado.dimitalart.pl/ Documentation: https://avocado.doc.dimitalart.pl/ Source code https://github.com/Programista-Art/Avocado

The user interface for adjustment FPSEce

It is object-oriented module for using 3D/2D graphic. The GLMax can be used in games, 3D editors or multimedia software.