Decision Workspace
epoxy_frp vs callbag vs observe
Side-by-side comparison of Rust crates
35
epoxy_frp
growingv0.3.1
The Reactive Glue for Frontend Applications
46
callbag
growingv0.14.0
Rust implementation of the callbag spec for reactive/iterable programming
49
observe
stablev2.0.0
Rust declarative observables inspired by MobX
Core Metrics
| epoxy_frp | callbag | observe | |
|---|---|---|---|
| Health Score | 35 | 46 | 49 |
| Total Downloads | 3.3K | 18.4K | 6.2K |
| 30d Downloads | 4 | 18 | 41 |
| Dependents | 0 | 0 | 1 |
| Releases | 2 | 14 | 6 |
| Last Updated | 2519d ago | 1533d ago | 66d ago |
| Age | 6y 11m | 4y 4m | 5y 9m |
Health Breakdown
epoxy_frp
Maintenance
3
Quality
15
Community
5
Popularity
4
Documentation
8
callbag
Maintenance
7
Quality
16
Community
6
Popularity
5
Documentation
12
observe
Maintenance
12
Quality
18
Community
4
Popularity
5
Documentation
10
Technical Details
| epoxy_frp | callbag | observe | |
|---|---|---|---|
| Version | 0.3.1 | 0.14.0 | 2.0.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | MIT OR Apache-2.0 | MIT |
| Dependencies | 3 | 16 | 11 |
| Crate Size | 5KB | 42KB | 21KB |
| Features | 0 | 16 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | — | 2021 | 2021 |
| MSRV | — | 1.58 | — |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •observe leads with a health score of 49/100, but none of the options score above 80.
- •callbag has the most downloads (18.4K), suggesting wider adoption.
- •⚠ epoxy_frp, callbag have not been updated in over a year.
- •epoxy_frp, callbag are pre-1.0 — API may change.