Decision Workspace
message-format vs localize_it vs fluent-syntax
Side-by-side comparison of Rust crates
32
message-format
growingv0.0.1
An implementation of ICU MessageFormats for Rust.
61
localize_it
experimentalv2.5.3
Simple and fast library for localization
58
fluent-syntax
growingv0.12.0
A low-level parser, AST, and serializer API for the syntax used by Project Fluent, a localization system designed to unleash the entire expressive power of natural language translations.
Core Metrics
| message-format | localize_it | fluent-syntax | |
|---|---|---|---|
| Health Score | 32 | 61 | 58 |
| Total Downloads | 2.7K | 327 | 11.2M |
| 30d Downloads | 0 | 0 | 1.1M |
| Dependents | 0 | 0 | 775 |
| Releases | 1 | 23 | 14 |
| Last Updated | 3651d ago | 3d ago | 368d ago |
| Age | 10y | 4m | 7y 10m |
Health Breakdown
message-format
Maintenance
1
Quality
16
Community
3
Popularity
4
Documentation
8
localize_it
Maintenance
19
Quality
18
Community
6
Popularity
3
Documentation
15
fluent-syntax
Maintenance
5
Quality
15
Community
18
Popularity
8
Documentation
12
Technical Details
| message-format | localize_it | fluent-syntax | |
|---|---|---|---|
| Version | 0.0.1 | 2.5.3 | 0.12.0 |
| Stable (≥1.0) | ✗ No | ✓ Yes | ✗ No |
| License | MIT/Apache-2.0 | MIT OR Apache-2.0 | Apache-2.0 OR MIT |
| Dependencies | 0 | 5 | 9 |
| Crate Size | 9KB | 24KB | 32KB |
| Features | 0 | 2 | 4 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | — | 2024 | 2021 |
| MSRV | — | 1.88.0 | 1.64.0 |
| Owners | 1 | 1 | 6 |
Links
Quick Verdict
- •localize_it leads with a health score of 61/100, but none of the options score above 80.
- •fluent-syntax has the most downloads (11.2M), suggesting wider adoption.
- •fluent-syntax is depended on by 775 crates — strongest ecosystem trust.
- •⚠ message-format, fluent-syntax have not been updated in over a year.
- •message-format, fluent-syntax are pre-1.0 — API may change.