Linux Softwares to Cross-platform

HandBrake is a free and open-source video transcoder renowned for its capability to convert videos to a wide range of formats, with a special focus on popular devices. It's a powerful tool for users looking to optimize video for playback compatibility, archival, or file size reduction.

Inkscape is a powerful, free, and open-source vector graphics editor widely used for creating scalable vector graphics (SVG). It's suitable for a range of design tasks, from illustrations and logos to web graphics and PDF editing, offering a robust set of tools comparable to commercial software.

Julia is a high-level, dynamic programming language designed for technical computing with performance comparable to traditional compiled languages. It excels in numerical analysis, data science, and scientific computing, offering a flexible environment for both rapid prototyping and high-performance code.

SQLiteStudio is a powerful, free (GPL), and portable SQLite database management tool providing an intuitive graphical interface for managing SQLite databases. It requires no installation and supports various essential database administration tasks, making it ideal for developers and database administrators.

D is a general-purpose systems and application programming language that aims to combine the power and high performance of C++ with the productivity and safety of modern languages like Python or Ruby.

Cube 2: Sauerbraten is a fast-paced, Quake-inspired open-source first-person shooter with a unique in-game map editor and strong multiplayer focus. It emphasizes quick movement and tactical team-based gameplay.