Decision Workspace
ferrum-email vs lettre vs himalaya
Side-by-side comparison of Rust crates
45
ferrum-email
experimentalv0.1.1
Component-based email framework for Rust — type-safe templates, cross-client rendering, unified sending API. The complete SDK.
65
lettre
growingv0.11.19
Email client
65
himalaya
stablev1.2.0
CLI to manage emails
Core Metrics
| ferrum-email | lettre | himalaya | |
|---|---|---|---|
| Health Score | 45 | 65 | 65 |
| Total Downloads | 10 | 8.0M | 47.6K |
| 30d Downloads | 10 | 906.3K | 6.7K |
| Dependents | 0 | 3.5K | 9 |
| Releases | 1 | 61 | 26 |
| Last Updated | 1d ago | 170d ago | 36d ago |
| Age | 1d | 10y 5m | 4y 1m |
Health Breakdown
ferrum-email
Maintenance
13
Quality
15
Community
6
Popularity
1
Documentation
10
lettre
Maintenance
11
Quality
14
Community
20
Popularity
8
Documentation
12
himalaya
Maintenance
17
Quality
20
Community
9
Popularity
6
Documentation
13
Technical Details
| ferrum-email | lettre | himalaya | |
|---|---|---|---|
| Version | 0.1.1 | 0.11.19 | 1.2.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT OR Apache-2.0 | MIT | MIT |
| Dependencies | 4 | 47 | 20 |
| Crate Size | 21KB | 159KB | 258KB |
| Features | 4 | 25 | 12 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | 1.74 | — |
| Owners | 1 | 2 (team) | 1 |
Links
Quick Verdict
- •lettre leads with a health score of 65/100, but none of the options score above 80.
- •lettre is depended on by 3.5K crates — strongest ecosystem trust.
- •ferrum-email, lettre are pre-1.0 — API may change.