Rust crate alternatives · data Oct 24, 2026
Alternatives to sdd
Short answerThe closest alternatives to sdd on crates.io data are crossbeam (375K real downloads a day), crossbeam-epoch (2.1M real downloads a day), sharded-slab (1.7M real downloads a day). Of the 8 we list, the most used is zeroize, and 7 shipped a release in the last year. sdd itself gets 238,698 a day with 7 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs sdd | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| crossbeam Widely used | 374,913 | 1.57x | 1,418 | 49d | category Concurrency, category Data structures, keyword "garbage", keyword "lock-free" | compare |
| crossbeam-epoch Established | 2,073,178 | 8.69x | 114 | 49d | category Concurrency, category Memory management, keyword "garbage", keyword "lock-free" | compare |
| sharded-slab Pulled in | 1,733,301 | 7.26x | 32 | 3.1y | category Concurrency, category Data structures, keyword "lock-free" | compare |
| crossbeam-deque Established | 1,924,167 | 8.06x | 142 | 49d | category Concurrency, category Data structures, keyword "lock-free" | compare |
| crossbeam-queue Established | 1,117,157 | 4.68x | 499 | 49d | category Concurrency, category Data structures, keyword "lock-free" | compare |
| dashmap Widely used | 1,112,131 | 4.66x | 4,694 | 5mo | category Concurrency, category Data structures, keyword "concurrent" | compare |
| zeroize Widely used | 2,397,082 | 10.04x | 5,204 | 18d | category Memory management, keyword "memory" | compare |
| zeroize_derive Pulled in | 979,424 | 4.10x | 26 | 4mo | category Memory management, keyword "memory" | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with sdd; 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 sdd: 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 sdd, 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: Widely used and losing ground. 374,913 real downloads a day.crossbeamRust crate. Tools for concurrent programming. Real use: 375K downloads a day on quiet days; 1,418 crates depend on it.Read it next →Also worth your time