Everything runs locally. The file never leaves your machine.
The Hardwood CLI — a Java application normally distributed as a platform-specific
native binary — is compiled ahead-of-time to WebAssembly with
GraalVM Web Image, so it runs here as native code in your browser, with no JVM and nothing to install.
It reads and decodes Parquet entirely in pure Java: no native libraries, no server round-trips,
nothing leaves the page.
Limitations: Only Snappy- and GZIP-compressed files are supported.
garbage collection and exception handling, which Safari and older
browser versions don't support yet.
.parquet file here