Redb

Offers a thread-safe, BTreeMap-based interface that enables efficient data access without unnecessary copying, as highlighted in the zero-copy feature description.

Provides fully ACID-compliant transactions with MVCC support, ensuring data integrity for concurrent readers and writers without blocking.

Designed to be crash-safe by default, preventing data loss on unexpected failures, which is a core feature emphasized in the README.

Benchmarks show redb performs similarly to top embedded stores like lmdb and rocksdb, with strengths in individual writes as detailed in the performance table.