once_cell

Latest Version: v1.21.3

once_cell is a widely adopted Rust crate for thread-safe, single-assignment cells and lazy static initialization (107M recent downloads).

Owner: matklad

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2.1k

GitHub star count

Last Release

N/A

v1.21.3

Contributors

N/A

Health Score

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Key Features

lazy evaluation
rust

Tech Stack

Rust

auto-discovered

crates

rust

lazy

static

memory-management

rust-patterns

About

once_cell is a widely adopted Rust crate for thread-safe, single-assignment cells and lazy static initialization (107M recent downloads).

v1.21.3 is a maintenance release with no publicly documented changes; the crate remains a foundational tool for lazy evaluation and static initialization in Rust.

Analyst Note

once_cell is a widely adopted Rust crate for thread-safe, single-assignment cells and lazy static initialization (107M recent downloads).

Best For

Technical stack evaluation for engineering teams
Dependency governance and upgrade planning in production systems
Track delivery cadence and release quality from matklad
lazy evaluation

Not Ideal For

Maintenance activity appears slow.

Typical Use Cases

Technical stack evaluation for engineering teamsDependency governance and upgrade planning in production systemsTrack delivery cadence and release quality from matklad