Decision Workspace
fbe vs capnp vs bincode-next
Side-by-side comparison of Rust crates
49
fbe
experimentalv0.2.0
Fast Binary Encoding (FBE) for Rust - High-performance, zero-copy binary serialization with 100% C++ FBE parity and binary compatibility
68
capnp
growingv0.25.4
runtime library for Cap'n Proto data encoding
68
bincode-next
experimentalv2.1.0
A compact, ultra-fast binary serialization format for Rust, optimized for networking and storage!
Core Metrics
| fbe | capnp | bincode-next | |
|---|---|---|---|
| Health Score | 49 | 68 | 68 |
| Total Downloads | 746 | 11.6M | 228.7K |
| 30d Downloads | 0 | 431.3K | 131.7K |
| Dependents | 0 | 1.5K | 77 |
| Releases | 4 | 199 | 20 |
| Last Updated | 212d ago | 44d ago | 4d ago |
| Age | 7m | 11y 6m | 5m |
Health Breakdown
fbe
Maintenance
13
Quality
14
Community
6
Popularity
3
Documentation
13
capnp
Maintenance
16
Quality
17
Community
12
Popularity
8
Documentation
15
bincode-next
Maintenance
19
Quality
17
Community
11
Popularity
6
Documentation
15
Technical Details
| fbe | capnp | bincode-next | |
|---|---|---|---|
| Version | 0.2.0 | 0.25.4 | 2.1.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | MIT | MIT | MIT or Apache-2.0 |
| Dependencies | 3 | 3 | 15 |
| Crate Size | 56KB | 151KB | 80KB |
| Features | 0 | 6 | 4 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2024 |
| MSRV | — | 1.81.0 | 1.85.0 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •capnp leads with a health score of 68/100, but none of the options score above 80.
- •capnp is depended on by 1.5K crates — strongest ecosystem trust.
- •fbe, capnp are pre-1.0 — API may change.