C3 Playground
a C3 compiler with graphics and sound in the browser
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Most online language playgrounds stop at compiling code and printing text. But C3 contributor Manu Linares wanted C3’s playground to go further.So here it is: a playground that compiles and runs interactive graphical programs — including games and Raylib-based demos — directly in the browser.
HN · launched Sep 24, 2026 · 7 upvotes (top 56%) · 1 view
Niche: browser code execution environments · 38 launches, 4 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- Not AI
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 38 launches in browser code execution environments →
Could you build this?
Partial While a code editor UI is simple, compiling a systems programming language (C3) and executing interactive graphics (Raylib) and audio client-side in the browser requires WebAssembly toolchain integration.
What it would actually take: Requires compiling the C3 compiler itself to WebAssembly or running a sandboxed serverless container execution farm, coupled with Emscripten/Wasm bindings for Raylib/OpenGL and WebAudio. The difficult part is compiling user code targeting WASM/WebGL directly in the client or streaming execution frames back with sub-second feedback loops.
Discussion
4 comments analyzed.
Competitors mentioned: C, C++
Competitors
Other products that read as similar to this one : 131 launches clear the similarity bar, closest 8 shown.
Attention rank: #75 of 132 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 325 days after the earliest competitor.
- HTML Playground: Learn & Code · ph · 2026-10-13 · 1 upvotes · similarity 0.49
- ZenCompiler · ph · 2026-09-15 · 1 upvotes · similarity 0.47
- JS Playground · ph · 2026-11-08 · 1 upvotes · similarity 0.45
- CodeWithZeeshan · ph · 2026-10-23 · 1 upvotes · similarity 0.44
- Cicada · hn · 2026-01-30 · 57 upvotes · similarity 0.43
- Q3Edit · hn · 2026-07-18 · 106 upvotes · similarity 0.43
- I built a Cargo-like build tool for C/C++ · hn · 2026-04-09 · 177 upvotes · similarity 0.43
- CForge · ph · 2026-09-30 · 1 upvotes · similarity 0.42
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