Decision Workspace
memmapix vs fmmap vs mmap-guard
Side-by-side comparison of Rust crates
42
memmapix
growingv0.7.6
No libc, pure Rust cross-platform Rust API for memory-mapped file IO
55
fmmap
growingv0.4.0
A flexible and convenient high-level mmap for zero-copy file I/O.
51
mmap-guard
experimentalv0.2.0
Safe, guarded memory-mapped file I/O for Rust
Core Metrics
| memmapix | fmmap | mmap-guard | |
|---|---|---|---|
| Health Score | 42 | 55 | 51 |
| Total Downloads | 147.1K | 213.1K | 483 |
| 30d Downloads | 3.7K | 16.2K | 483 |
| Dependents | 45 | 138 | 0 |
| Releases | 11 | 14 | 2 |
| Last Updated | 921d ago | 398d ago | 19d ago |
| Age | 3y 8m | 4y 3m | 19d |
Health Breakdown
memmapix
Maintenance
4
Quality
9
Community
11
Popularity
6
Documentation
12
fmmap
Maintenance
7
Quality
15
Community
12
Popularity
6
Documentation
15
mmap-guard
Maintenance
13
Quality
14
Community
6
Popularity
3
Documentation
15
Technical Details
| memmapix | fmmap | mmap-guard | |
|---|---|---|---|
| Version | 0.7.6 | 0.4.0 | 0.2.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✗ No |
| License | MIT/Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 3 | 20 | 3 |
| Crate Size | 30KB | 73KB | 26KB |
| Features | 0 | 6 | 0 |
| Yanked % | 54.5% | 0.0% | 0.0% |
| Edition | 2018 | 2021 | 2024 |
| MSRV | — | 1.65.0 | 1.89 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •fmmap leads with a health score of 55/100, but none of the options score above 80.
- •fmmap is depended on by 138 crates — strongest ecosystem trust.
- •⚠ memmapix, fmmap have not been updated in over a year.