What it does
BASIC-256 is a free programming environment built to teach coding through short BASIC programs, graphics, and immediate output. Its desktop application combines an editor, text and graphics panes, syntax highlighting, and a step debugger. A WebAssembly edition runs in a browser without an account and keeps the program in the local browser, while the desktop build provides the full command set. The project publishes current Windows, macOS, Linux, and Raspberry Pi downloads under GPL v3.
Learn by changing a program and seeing it run
BASIC-256 puts the editor beside text and graphics output, so a learner can write a few statements, run them, and inspect the result without first configuring a project. Drawing, animation, sound, arrays, files, and database examples give a course or classroom exercises beyond console-only output. The desktop IDE also includes syntax highlighting and a step debugger, and the project provides a free online textbook with exercises.
The browser edition is the same interpreter compiled to WebAssembly. It requires no account, and the official homepage says a program stays on the user's machine rather than being uploaded. For a first activity, adapt a bundled graphics example or write a short loop that draws a pattern, then step through it in the debugger. This is an example task, not a hands-on test of the software.
Pick browser or desktop deliberately
The browser build is convenient for a quick lesson, but a sandboxed tab cannot expose every desktop command. The project says some operating-system features are unavailable online; the full desktop app is the better choice for programs that need those commands or for heavier animation work. The browser download is about 16 MB on first launch according to the homepage. Releases are published through the official GitHub repository, and the current license file is GPL v3.
Strengths
- The desktop IDE combines editing, graphics and text output, syntax highlighting, and a step debugger.
- The WebAssembly build runs in a browser without an account and keeps programs local to the browser.
- The project publishes current desktop builds for Windows, macOS, Linux, and Raspberry Pi as well as the browser edition.
Watch out for
- The browser sandbox disables some commands available in the desktop application.
- The first browser launch downloads roughly 16 MB, according to the project homepage.
Best for
- Teachers and learners introducing programming with short BASIC, graphics, and animation exercises.
- Beginners who want an IDE with immediate visual output and a step debugger.
- Quick browser lessons where no account or local installation is desired.
Sources
- BASIC-256 — Free Beginner Programming Language (Oct 25, 2026)
- basic256/license.txt at v2.3.0 · uglymike17/basic256 · GitHub (Oct 25, 2026)
- Releases · uglymike17/basic256 (Oct 25, 2026)