Tortank

Posted on Nov 10, 2026

Tortank is a Turtle / N-Triples parser and in-memory RDF store written in Rust.

Try it out!

I wrote it for Swarm, where I needed to parse and compare a lot of triples (e.g. to calculate the difference between two jobs).

Features

  • Covers (roughly) the Turtle spec: prefixes, collections, blank nodes, etc.
  • Blank nodes are skolemized
  • Set operations (difference, intersection), pattern matching and turtle serialization
  • Only the default graph is supported (no named graphs)

Usage

In Rust:

cargo add tortank

use tortank::turtle::turtle_doc::TurtleDoc;

let doc = TurtleDoc::try_from((input, None, None))?;
println!("{}", doc.as_turtle()?);

It can also be used from JavaScript / TypeScript through WebAssembly: @nbittich/tortank-wasm for Node, @nbittich/web-tortank for the browser.

More examples in the README.

Like the other components of Swarm, it’s experimental, so I wouldn’t use it in production.