Temper is a programming language and toolchain for making libraries that can be used natively from any other language.
Java Alternatives
Java is described as 'General-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible' and is a leading programming language in the development category. There are more than 50 alternatives to Java for a variety of platforms, including Linux, Windows, Mac, BSD and Web-based apps. The best Java alternative is Python, which is both free and Open Source. Other great apps like Java are JavaScript, C++, C# and Rust.
Alternatives list
Tcl (Tool Command Language) is a very powerful but easy to learn dynamic programming language, suitable for a very wide range of uses.

Unison is a statically-typed functional language with type inference, an effect system, and advanced tooling. It is based around a big idea of content-addressed code, in which function are identified by a hash of their implementation rather than by name, and code is stored as...
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- BSD
- Self-Hosted

Vala is a new programming language that aims to bring modern programming language features to GNOME developers without imposing any additional runtime requirements and without using a different ABI compared to applications and libraries written in C.
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
The X10 programming language is organized around four basic principles of asynchrony, locality, atomicity, and order that are developed on a type-safe, class-based, object-oriented foundation. This foundation is robust enough to support fine-grained concurrency, Cilk-style...
Wolfram Language is a symbolic language, deliberately designed with the breadth and unity needed to develop powerful programs quickly. By integrating high-level forms—like Image, GeoPolygon or Molecule—along with advanced superfunctions—such as ImageIdentify or...
Cost / License
- Free
- Proprietary (MIT)
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- BSD
- openSUSE
- FreeBSD
- OpenSolaris
- NetBSD
- OpenBSD
Mojo is a specialized artificial intelligence (AI) programming language developed by Modular Inc. First released in May 2023, it is designed to become a superset of Python, with the performance of C.

Object Pascal is a multi-paradigm, object-oriented, component-based general purpose programming language.
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
- BSD
- AROS
- Haiku
- AmigaOS
- MorphOS
- 81 Odin alternatives
The Odin programming language is fast, concise, readable, pragmatic and open sourced. It is designed with the intent of replacing C with the following goals:
Pony is an open-source, object-oriented, actor-model, capabilities-secure, high-performance programming language.
Cost / License
- Free
- Open Source (BSD-2-Clause)
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- Linux Mint
- Ubuntu
- FreeBSD
- Alpine Linux
HolyC is very similar to regular C, so it's a very simple but powerful language. It was used to make all of TempleOS, so it definitely works to make programs.




























Object Pascal doesn't force Class based OOP, and allows for alternatives like Records. As a Hybrid language, programmer has choices on how to use OOP. Does not have the multiple inheritance/diamond problem with OOP like other languages. Easier language to learn and understand. Cross compiles to many different OSes. As fast as C/C++.