diff --git a/README.md b/README.md
index d1fc9e2..c31c2cb 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ I designed it for programs that need real-time geospatial, such as geofencing, m
 - Reads and writes [WKT](https://en.wikipedia.org/wiki/Well-known_text_representation_of_geometry), [WKB](https://en.wikipedia.org/wiki/Well-known_text_representation_of_geometry), and [GeoJSON](https://en.wikipedia.org/wiki/GeoJSON).
 - Provides a purely functional [API](docs/API.md) that is reentrant and thread-safe.
 - Spatial predicates including "intersects", "covers", "touches", "equals", etc.
+- Compiles to Webassembly using Emscripten
 - [Test suite](tests/README.md) with 100% coverage using sanitizers and [Valgrind](https://valgrind.org).
 - Self-contained library that is encapsulated in the single [tg.c](tg.c) source file.
 - Pretty darn good performance. 🚀 <sup>[[benchmarks]](docs/BENCHMARKS.md)</sup>
diff --git a/tests/README.md b/tests/README.md
index 57f69c8..668c4cf 100644
--- a/tests/README.md
+++ b/tests/README.md
@@ -21,6 +21,8 @@ CC=clang-17 tests/run.sh       # use alternative compiler
 CFLAGS="-O3" tests/run.sh      # use custom cflags
 NOSANS=1 tests/run.sh          # do not use sanitizers
 VALGRIND=1 tests/run.sh        # use valgrind on all tests
+CC="emcc" tests/run.sh         # Test with Emscripten (webassembly)
+CC="zig cc" tests/run.sh       # Test with the Zig C compiler
 ```
 
 ## Benchmarks