Decision Workspace
flexbuffers vs fexbluffers vs flatbuffers
Side-by-side comparison of Rust crates
66
flexbuffers
growingv25.12.19
Official FlexBuffers Rust runtime library.
52
fexbluffers
experimentalv0.1.3
Allocation optimized FlexBuffer implementation (Rust).
67
flatbuffers
growingv25.12.19
Official FlatBuffers Rust runtime library.
Core Metrics
| flexbuffers | fexbluffers | flatbuffers | |
|---|---|---|---|
| Health Score | 66 | 52 | 67 |
| Total Downloads | 4.0M | 6.4K | 84.6M |
| 30d Downloads | 64.4K | 0 | 3.6M |
| Dependents | 3.5K | 609 | 2.8K |
| Releases | 11 | 7 | 33 |
| Last Updated | 206d ago | 185d ago | 206d ago |
| Age | 6y 2m | 12m | 10y 1m |
Health Breakdown
flexbuffers
Maintenance
8
Quality
21
Community
20
Popularity
8
Documentation
9
fexbluffers
Maintenance
11
Quality
12
Community
14
Popularity
5
Documentation
10
flatbuffers
Maintenance
10
Quality
18
Community
20
Popularity
8
Documentation
11
Technical Details
| flexbuffers | fexbluffers | flatbuffers | |
|---|---|---|---|
| Version | 25.12.19 | 0.1.3 | 25.12.19 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✓ Yes |
| License | Apache-2.0 | Apache-2.0 | Apache-2.0 |
| Dependencies | 5 | 11 | 3 |
| Crate Size | 29KB | 37KB | 27KB |
| Features | 2 | 0 | 3 |
| Yanked % | 0.0% | 0.0% | 18.2% |
| Edition | 2018 | 2024 | 2018 |
| MSRV | — | — | 1.51 |
| Owners | 3 (team) | 1 | 4 (team) |
Links
Quick Verdict
- •flatbuffers leads with a health score of 67/100, but none of the options score above 80.
- •flexbuffers is depended on by 3.5K crates — strongest ecosystem trust.
- •fexbluffers is pre-1.0 — API may change.