Rust crate alternatives · data Oct 24, 2026
Alternatives to r-efi
Short answerThe closest alternatives to r-efi on crates.io data are portable-atomic (1.9M real downloads a day), num_threads (566K real downloads a day), libc (5M real downloads a day). Of the 8 we list, the most used is libc, and 7 shipped a release in the last year. r-efi itself gets 2,051,196 a day with 14 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs r-efi | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| portable-atomic Established | 1,871,271 | 0.91x | 512 | 2mo | category Embedded development, category Hardware support | compare |
| num_threads Pulled in | 566,226 | 0.28x | 11 | 7d | category Hardware support, category Operating systems | compare |
| libc Foundational | 4,964,021 | 2.42x | 17,338 | 8d | category No standard library, category Operating systems | compare |
| cpufeatures Pulled in | 4,097,423 | 2.00x | 81 | 59d | category Hardware support, category No standard library | compare |
| zerocopy Established | 3,245,504 | 1.58x | 878 | 11d | category Embedded development | compare |
| errno Established | 2,791,762 | 1.36x | 259 | 13mo | category No standard library, category Operating systems | compare |
| icu_provider Pulled in | 2,521,500 | 1.23x | 93 | 2d | category Embedded development, category No standard library | compare |
| icu_collections Pulled in | 2,507,923 | 1.22x | 25 | 2d | category Embedded development, category No standard library | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with r-efi; read its description before you swap.
- More dependents means more answered questions and a smaller chance it disappears.
- Check the last release against how fast you need fixes. For r-efi: is it still maintained?
Rules
Alternatives = tracked crates (top 1000 by downloads) that share a specific crates.io category (2 points each) or keyword (3 points each) with r-efi, most similar first; its own parts (same name prefix) and crates it depends on or that depend on it are left out, because those are companions, not substitutes. Real downloads = quiet-day median, crates.io data Oct 24, 2026. Built when we find 3 or more.
Up next
The closest alternative: Established and steady. 1,871,271 real downloads a day.portable-atomicRust crate. Portable atomic types including support for 128-bit atomics, atomic float, etc. Real use: 1.9M downloads a day on quiet days; 512 crates depend on it.Read it next →Also worth your time