zstd-rs

Zstandard is a modern successor to zlib, providing better compression faster. Zstd-rs is in developement; it aims to provide excellent performance while introducing memory safety.

The project will provide a dynamic library that is a drop-in replacement for C/C++ counterparts, but has compiled memory-safe Rust code inside. For the high level goals, see our Data compression initiative.

Zstd-rs is part of our Data compression initiative.

About

Development of zstd-rs began in July 2025, with the first release of the decoder planned for February 2026.

Roadmap

  • 2025 Q3: start of decoder implementation
  • 2025 Q4: dictBuilder feature
  • 2026 Q1: release of decoder
  • 2026 Q2: release of encoder (pending funding)

For details see the zstd-rs workplan.

Support zstd-rs

Please get in touch with us, if you are interested in financially supporting us. We offer technical support services for organizations wanting to adopt our data compression software.

Supporters & funders