@kreijstal/openscad-wasm

OpenSCAD 2026.07.26 (commit 04834adb) for the browser, with Manifold, CGAL, fonts and lib3mf

Upstream: https://github.com/openscad/openscad

Use

Pinned to this version, from a CDN:

https://cdn.jsdelivr.net/npm/@kreijstal/[email protected]/<file>
https://unpkg.com/@kreijstal/[email protected]/<file>

Reproducing this build

Everything here is built from source; nothing prebuilt is repackaged. The script that produced these files is included as build/build.sh.

Toolchain

• emscripten: emcc 6.0.9-git (4e4223852a0835923411059a3929907d7df1232e) from the Arch Linux package emscripten 6.0.9-1 (installed at /usr/lib/emscripten; LLVM clang version 24.0.0git, Binaryen wasm-opt version 132 (version_132-49-gd03c25ea43))
• Node.js v22.23.2, CMake 4.4.3, Arch Linux
• No emsdk: the script puts /usr/lib/emscripten first on PATH and unsets EMSDK/EM_CONFIG, so every object (including emscripten's own libc/libc++) comes from that one emcc

Sources

Recipe: openscad/openscad-wasm at dc2ff913b4193b1ebfef863da3f7e84f8fbc1e11 (its Makefile and Dockerfiles: dependency versions and configure flags), built natively instead of in Docker.

| Source | Pin | |---|---| | OpenSCAD | 04834adb1ba3c9a6e4160747c91cbadbce9c37b3 (version set to 2026.07.26, the commit date) | | cgal | v6.0.3 | | doubleconversion | v3.4.0 | | eigen | 5.0.1 | | fontconfig | 2.18.2 | | freetype | VER-2-14-3 | | harfbuzz | 14.3.0 | | lib3mf | v2.3.2 | | libffi | v3.7.1 | | libxml2 | v2.15.3 | | libzip | v1.11.4 | | zlib | v1.3.2 | | glib | 3994b22020c9f61121ebbc902f19cfe906dd745b | | liberation | ef7161f03e305982b0b247e9a0b7cc472376dd83 | | boost | https://github.com/boostorg/boost/releases/download/boost-1.87.0/boost-1.87.0-b2-nodocs.tar.xz | | gmp | https://gmplib.org/download/gmp/gmp-6.3.0.tar.xz | | mpfr | https://www.mpfr.org/mpfr-4.2.1/mpfr-4.2.1.tar.xz |

Steps

On Arch Linux with the emscripten package installed (pacman -S emscripten):

mkdir openscad-wasm-build && cd openscad-wasm-build && cp /path/to/this/package/build/* .
./build.sh

It takes about 22 minutes on 16 cores; FORCE=1 ./build.sh rebuilds every stage. The script fetches the pinned sources itself and refuses to run with any emcc other than /usr/lib/emscripten/emcc; the output lands in dist/. Compare it against the checksums below.

The comment at the top of the build script, verbatim:

OpenSCAD for the browser (goldenlayouteditor's 3D viewer), built from source with
the SYSTEM emscripten (/usr/lib/emscripten, emcc 6.0.9-git). No emsdk, no Docker,
no prebuilt wasm. Follows github.com/openscad/openscad-wasm (Makefile +
Dockerfile.base + Dockerfile, commit pinned below): same dependency versions,
same configure flags, built natively one after another.

Every library is installed into a private emscripten cache ($ROOT/emcache,
EM_CACHE), whose sysroot is where upstream's Dockerfile installs them too
(/emsdk/upstream/emscripten/cache/sysroot), so emcmake/emconfigure find them
with no extra search paths. emscripten's own system libraries in that cache
(libc, libc++, ...) are built from source by the system emcc on first use.

Usage: ./build.sh            fetch (if needed) + build everything not yet built
       FORCE=1 ./build.sh    rebuild every stage
       ./build.sh <stage>... rebuild only those stages

Checksums of the published files

c65c8c90d48c8f889f4adaad5aae736b7321362a5035c9fa2f4dce28e7dfdbd7  BUILDINFO.txt
24b7cf0d06040c9a1b16efc528dc2966a407288938dfa169ee7fe584140a3393  fonts/LiberationSans-BoldItalic.ttf
d723d5a272970aedf296ef6fc628180df6074bce7769701ea9e0d222c052668c  fonts/LiberationSans-Bold.ttf
e27e6da1f5bbba630d635b8cc2916f84f195735865ea539687df962ae5a98e72  fonts/LiberationSans-Italic.ttf
e5b0af421ea2bfbc1ac8d251d647268087ae82786234c57f757d1f0b90fa8b49  fonts/LiberationSans-Regular.ttf
403ec833e352e035a5f3358d9fcf77d1a1caab0e4cbd3092c588ef11e27c1c19  openscad.js
3846325c6b28bff04b861279382193a0e3c05fc0bd2f97e680be108e756ae5ad  openscad.wasm

Licenses

GPL-3.0-or-later. The license texts of everything compiled in are in LICENSES/.