ClifferBasic, a simple BASIC interpreter as a .NET REPL
Ever since I got my first computer, a TI-99/4A, at age 13, I've been fascinated by programming languages. I've written a few interpreters, but this is the first time I've come back to the first language I've ever learned, BASIC. I started ClifferBasic as a way to shake out bugs and find feature weaknesses in another project I'm working on, Cliffer, which is a library for writing CLI applications in .NET using attributed program, but it's taken on a life of its own and has become a rather fun project. I'm planning to flesh out the BASIC implementation over the coming weeks, but I'd like…
ClifferBasic, a simple BASIC interpreter as a .NET REPL launched on July 26, 2024 with 23 votes, #1,026 of 5,184 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 2 years on.
In plain words
ClifferBasic is a BASIC interpreter built as a .NET REPL that lets users write and run BASIC programs in a modern development environment. It was created to test and refine the Cliffer library for CLI application development, but has evolved into a standalone project. The interpreter recreates the classic programming language experience for developers interested in retro computing or learning language design fundamentals.
written from the facts on this page · September 2026
From the sources
ClifferBasic is a sample program for the Cliffer CLI library that implements a very simple BASIC interpreter environment as a REPL (Read-Eval-Print Loop). This project demonstrates the usage of the Cliffer CLI library to build a custom command-line application with an interactive BASIC-like language interpreter. - paulmooreparks/ClifferBasic
In the maker’s words, at launch
Ever since I got my first computer, a TI-99/4A, at age 13, I've been fascinated by programming languages. I've written a few interpreters, but this is the first time I've come back to the first language I've ever learned, BASIC. I started ClifferBasic as a way to shake out bugs and find feature weaknesses in…
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