libmdbx vs redb
libmdbx: Heavily reworked LMDB descendant: memory-mapped ACID B+tree with auto-growing files. redb: Pure-Rust embedded key-value store: copy-on-write B-trees, ACID, and a stable file format.
key differences
- libmdbx is built for larger datasets (≤ 10 TB) than redb (≤ 100 GB).
choose libmdbx for
- +Blockchain node state and indexes
- +Read-heavy embedded storage needing LMDB semantics
- +Replacing LMDB where auto-resizing is needed
best at · Embedded, Metadata
choose redb for
- +Local persistence for Rust desktop and CLI apps
- +Embedded metadata and index storage in Rust services
- +Replacing sled or LMDB bindings in Rust code
best at · Embedded, Local-first, Metadata
libmdbx vs redb: FAQ
What is the difference between libmdbx and redb?
libmdbx: Heavily reworked LMDB descendant: memory-mapped ACID B+tree with auto-growing files. redb: Pure-Rust embedded key-value store: copy-on-write B-trees, ACID, and a stable file format. libmdbx is built for larger datasets (≤ 10 TB) than redb (≤ 100 GB).
When should I choose libmdbx over redb?
Choose libmdbx for blockchain node state and indexes; read-heavy embedded storage needing LMDB semantics; and replacing LMDB where auto-resizing is needed. Choose redb for local persistence for Rust desktop and CLI apps; embedded metadata and index storage in Rust services; and replacing sled or LMDB bindings in Rust code.
Is libmdbx or redb more popular?
redb ranks #245 on the WhichDB Score (13.8/100) and libmdbx ranks #394 (4.9/100). Popularity is not fit: check the requirements that matter for your project.
Are libmdbx and redb open source?
Yes. libmdbx is open source. License: Apache License 2.0. Yes. redb is open source. License: MIT or Apache License 2.0.