cassowary
v0.3.0 GrowingA Rust implementation of the Cassowary linear constraint solving algorithm. The Cassowary algorithm is designed for naturally laying out user interfaces using linear constraints, like 'this button must line up with this text box'.
Quick Verdict
- ✕Not updated for 8+ years
- !Pre-1.0: API may have breaking changes
- ✓Trusted by 302 crates
- ✓Tiny footprint (23KB, 0 deps)
- ✓Permissive license (MIT / Apache-2.0)
Security
Deep Insights
2.5M downloads in the last 30 days (83.1K/day), up 5% from the previous period.
302 crates depend on cassowary. Reasonable ecosystem adoption, though not yet a core dependency.
Despite being 10+ years old, cassowary hasn't reached 1.0 yet. Expect potential API changes between versions.
cassowary has no external dependencies — minimal supply chain risk and fast compile times.
At 22KB, cassowary is lightweight. Small crate size correlates with focused, well-scoped functionality.
Notable dependents include termwiz, tui, scm-record, zellij-server, bb. When high-quality crates choose cassowary, it's a strong quality signal.
Health Breakdown
Recency, release consistency, active ratio
Yanked ratio, deps, size, maturity, features
Reverse deps, ownership, ecosystem
Downloads, momentum, growth trend
Docs, repo, license, metadata
Download Trend
Top Dependents
Most downloaded crates that depend on cassowary
