Lightpanda chose Zig over C++ and Rust to build their browser engine, prioritizing simplicity and explicit control. The team values Zig's straightforward syntax, compile-time metaprogramming, explicit allocator model for fine-grained memory management, and seamless C interoperability for integrating with V8. While Zig is pre-1.0 with a smaller ecosystem, its arena allocators enable efficient per-page memory handling, comptime features reduce boilerplate when bridging JavaScript, and fast compilation times maintain developer productivity. The decision reflects a pragmatic choice for a small team building performance-critical infrastructure without the complexity of C++ templates or Rust's borrow checker.
Table of contents
TL;DRWhy We Built Lightpanda in ZigWhat Lightpanda Needs from a LanguageWhy Not C++?Why not Rust?Why Zig Works for LightpandaWhat We’ve LearnedConclusionFAQSort: