Apache OpenOffice – the cross platform office productivity suite from Apache Software Foundation (ASF) consists of programs for word processing, spreadsheets, presentation, diagrams and drawings, databases, etc.
Calligra Suite – the office productivity suite from KDE consists of programs for word processing, spreadsheets, presentation, databases, vector graphics, and digital painting
Collabora Online – edition of LibreOffice, web application, mobile phone, tablet, Chromebook and desktop (Windows, macOS, Linux)[24]
LibreOffice – the cross platform office productivity suite from The Document Foundation (TDF) consists of programs for word processing, spreadsheets, presentation, diagrams and drawings, databases, etc.
PDFsam Basic edition – platform independent software designed to split, merge, mix, extract pages and rotate PDF files for Windows, Linux, MacOS. Open-source version of their commercial offering
Operating systems
Be advised that available distributions of these systems can contain, or offer to build and install, added software that is neither free software nor open-source.
ReactOS – OS intended to run the same software as Windows, originally designed to simulate Windows NT 4.0, later aiming at Windows 7 compatibility. It has been in the development stage since 1996.
↑"deepseek-ai/DeepSeek-Coder". GitHub. Retrieved July 19, 2026.
↑"eclipse-theia/theia". GitHub. Retrieved July 19, 2026.
↑"Theia IDE – AI-Native Open-Source Cloud and Desktop IDE". Theia IDE. Retrieved July 19, 2026.
↑Jiang, Ben (February 11, 2026). "Chinese AI start-up Zhipu releases new flagship model GLM-5". Reuters. Retrieved July 19, 2026.
↑"zai-org/GLM-5". GitHub. Retrieved July 19, 2026.
↑"zed-industries/zed". GitHub. Retrieved July 19, 2026.
↑Allen, Matthew (2025-09-02). "Switzerland launches transparent ChatGPT alternative". SWI swissinfo.ch. Retrieved 2026-01-21. Apertus (from the Latin word meaning "open") leaves nothing to the imagination in this respect. It promises that every nut and bolt is open for public scrutiny along with its design manual and recipe formula.
↑Dey, Nolan; Gosal, Gurpreet; Chen, Zhiming; Khachane, Hemant; Marshall, William; Pathria, Ribhu; Tom, Marvin; Hestness, Joel (2023). "Cerebras-GPT: Open Compute-Optimal Language Models Trained on the Cerebras Wafer-Scale Cluster". arXiv:2304.03208 [cs.LG].
↑"Open sourcing IBM's Granite code models". IBM Research. May 6, 2024. Retrieved June 27, 2026.
↑Knight, Will (2026-07-15). "Thinking Machines Lab Drops Its First Model". Wired. ISSN1059-1028. Retrieved 2026-07-20.
↑"Models Overview | Mistral AI Large Language Models". docs.mistral.ai. Archived from the original on 2025-04-09. Retrieved 2026-03-07.
↑Mo, Liam; Hall, Casey (19 September 2024). "Alibaba accelerates AI push by releasing new open-source models, text-to-video". Reuters.
↑"UBTECH-Robot/Thinker". June 2, 2026 – via GitHub.
↑"Further Development of Verification Check-casesforSix-Degree-of-Freedom Flight Vehicle Simulations"(PDF). NASA Engineering and Safety Center Academy. 2015. Archived(PDF) from the original on March 10, 2021.