The main features of consensys/gnark are: Proof System Implementations.
Open-source alternatives to consensys/gnark include: akosba/jsnark. christianlundkvist/libsnark-tutorial. dalek-cryptography/bulletproofs — A pure-Rust implementation of Bulletproofs using Ristretto. ebfull/bellman-demo. elibensasson/libstark. adjoint-io/bulletproofs.
A pure-Rust implementation of Bulletproofs using Ristretto.