There is a reasonably feature complete implementation of Zstd for Go: https://github.com/klauspost/compress/tree/master/zstd https://github.com/klauspost/compre

There is a reasonably feature complete implementation of Zstd for Go: https://github.com/klauspost/compress/tree/master/zstd https://github.com/klauspost/compress/tree/master/zstd It may not offer the same API 1:1, but it has no interoperability issues that I've encountered. I think no one has bothered to implement it in Rust because most use cases don't mind the added bloat you're talking about, not because implementing it in Rust would be insurmountable. Plus, other comments I've seen suggest that you can actually tune the size of the C zstd library, although I'm not sure if the Rust bindings expose that.