Topaz – A small application language that compiles through Rust
Hi HN, I'm Matt, CTO at STUDIO HAZE in Seoul. I've wanted to build a programming language for twenty years, ever since Ruby got me wondering what a small language out of Korea might look like. Today I'm opening the repo for the first time, as Topaz v5.2. Topaz reads like Python or TypeScript, runs on a reference interpreter (topaz run), and builds a self-contained native binary by lowering to Rust, then handing off to the Rust toolchain (topaz build). function factorial(n: int) -> int { if n string { return "안녕하세요, {이름}님!" } print(인사하기("토파즈")) // 안녕하세요, 토파즈님! sql, sh, and path…
Topaz – A small application language that compiles through Rust launched on June 18, 2026 with 5 votes, #2,466 of 22,647 launches that month and more than 75% of that year's launches.
What it does
Topaz programming language. Compact, consistent syntax for application intent, with a self-hosted compiler and Rust and Python backends. - studiohaze/topaz
Topaz is a programming language for expressing application intent in a compact, consistent syntax. It reads as easily as Python or TypeScript, but instead of scattering one intent across several constructs it gives each idea a single syntactic shape. Identifiers accept Unicode from the lexer onward, so domain terms can be used directly in code without being transliterated into Latin letters. function 글자정리(글: string) -> string { if 글 == "&" { "&" } else if 글 == "<" { "<" } else if 글 == ">" { ">" } else { 글 } } function 줄정리(줄: string) -> string { let mut 출력 = "" for 글 in 줄.scalars() { 출력 = 출력 + 글자정리(글) } 출력 } From examples/choseong . More programs live in examples/ . Topaz is not aimed at…from github.com
In the maker’s words, at launch
Hi HN, I'm Matt, CTO at STUDIO HAZE in Seoul. I've wanted to build a programming language for twenty years, ever since Ruby got me wondering what a small language out of Korea might look like. Today I'm opening the repo for the first time, as Topaz v5.2. Topaz reads like Python or TypeScript, runs on a reference…
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