Lunar, a "fast", memory-efficient Lua 5.1 VM written in Go
I'm releasing Lunar, a new Lua 5.1 compiler and virtual machine written entirely in Go. It includes the standard libraries, coroutines as well as supporting Lua 5.2-style goto. The embedding API avoids the Lua C API’s stack-based interface in favor of typed Go values and callback frames. Libraries and script-file access are opt-in, so the host explicitly controls what Lua code can access. On my current benchmarks and use-cases, Lunar is often ~1.5x to 2x faster than GopherLua and Shopify’s go-lua. Its largest improvement however is memory use: loading a 9 MB CBOR-derived object graph…
Lunar, a "fast", memory-efficient Lua 5.1 VM written in Go launched on August 3, 2026 with 8 votes, #1,241 of 23,274 launches that month and more than 75% of that year's launches.
What it does
A Lua 5.1 runtime for Go. Contribute to mmcdole/lunar development by creating an account on GitHub.
In the maker’s words, at launch
I'm releasing Lunar, a new Lua 5.1 compiler and virtual machine written entirely in Go. It includes the standard libraries, coroutines as well as supporting Lua 5.2-style goto. The embedding API avoids the Lua C API’s stack-based interface in favor of typed Go values and callback frames. Libraries and script-file…
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