Decision Workspace
modbus-relay vs rmodbus vs eva-sim-modbus
Side-by-side comparison of Rust crates
51
modbus-relay
growingv2025.11.0
A high performance Modbus TCP to RTU relay
53
rmodbus
growingv0.12.2
Fast and platform-independent Modbus server framework
34
eva-sim-modbus
growingv0.1.0
EVA ICS Virtual Fieldbus Simulator
Core Metrics
| modbus-relay | rmodbus | eva-sim-modbus | |
|---|---|---|---|
| Health Score | 51 | 53 | 34 |
| Total Downloads | 1.0K | 162.5K | 1.6K |
| 30d Downloads | 6 | 8.3K | 3 |
| Dependents | 0 | 105 | 0 |
| Releases | 2 | 58 | 1 |
| Last Updated | 139d ago | 180d ago | 991d ago |
| Age | 1y 3m | 5y 6m | 2y 8m |
Health Breakdown
modbus-relay
Maintenance
10
Quality
16
Community
6
Popularity
4
Documentation
15
rmodbus
Maintenance
11
Quality
15
Community
11
Popularity
6
Documentation
10
eva-sim-modbus
Maintenance
1
Quality
14
Community
5
Popularity
4
Documentation
10
Technical Details
| modbus-relay | rmodbus | eva-sim-modbus | |
|---|---|---|---|
| Version | 2025.11.0 | 0.12.2 | 0.1.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | Apache-2.0 | Apache-2.0 |
| Dependencies | 20 | 14 | 6 |
| Crate Size | 52KB | 40KB | 2KB |
| Features | 0 | 6 | 0 |
| Yanked % | 0.0% | 3.5% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | 1.91 | — | — |
| Owners | 1 | 2 | 2 |
Links
Quick Verdict
- •rmodbus leads with a health score of 53/100, but none of the options score above 80.
- •rmodbus is depended on by 105 crates — strongest ecosystem trust.
- •⚠ eva-sim-modbus has not been updated in over a year.
- •rmodbus, eva-sim-modbus are pre-1.0 — API may change.