Fjall vs redb
Fjall: Log-structured, embeddable key-value engine in pure Rust with keyspaces and transactions. redb: Pure-Rust embedded key-value store: copy-on-write B-trees, ACID, and a stable file format.
key differences
- Fjall is built for larger datasets (≤ 10 TB) than redb (≤ 100 GB).
- Only Fjall has compression.
choose fjall for
- +Write-heavy storage inside Rust services
- +Embedded time-series or log storage
- +Replacing RocksDB bindings in Rust code
best at · Embedded, Time-series, 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
Fjall vs redb: FAQ
What is the difference between Fjall and redb?
Fjall: Log-structured, embeddable key-value engine in pure Rust with keyspaces and transactions. redb: Pure-Rust embedded key-value store: copy-on-write B-trees, ACID, and a stable file format. Fjall is built for larger datasets (≤ 10 TB) than redb (≤ 100 GB). Only Fjall has compression.
When should I choose Fjall over redb?
Choose Fjall for write-heavy storage inside Rust services, embedded time-series or log storage and replacing RocksDB bindings in Rust code. 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 Fjall or redb more popular?
Fjall ranks #215 on the WhichDB Score (15.4/100) and redb ranks #245 (13.8/100). Popularity is not fit: check the requirements that matter for your project.
Are Fjall and redb open source?
Yes. Fjall is open source. License: MIT or Apache License 2.0. Yes. redb is open source. License: MIT or Apache License 2.0.