Crates / dashmap / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to dashmap
Short answerThe closest alternatives to dashmap on crates.io data are scc (241K real downloads a day), ahash (2M real downloads a day), sharded-slab (1.7M real downloads a day). Of the 8 we list, the most used is ahash, and 6 shipped a release in the last year. dashmap itself gets 1,112,131 a day with 4,694 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs dashmap | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| scc Established | 240,754 | 0.22x | 133 | 53d | category Concurrency, category Data structures, keyword "concurrent", keyword "hashmap" | compare |
| ahash Widely used | 1,968,676 | 1.77x | 2,097 | 18mo | category Algorithms, category Data structures, keyword "hashmap" | compare |
| sharded-slab Pulled in | 1,733,301 | 1.56x | 32 | 3.1y | category Concurrency, category Data structures, keyword "atomic" | compare |
| portable-atomic-util Pulled in | 537,004 | 0.48x | 73 | 50d | category Concurrency, category Data structures, keyword "atomic" | compare |
| crossbeam Widely used | 374,913 | 0.34x | 1,418 | 49d | category Concurrency, category Data structures, keyword "atomic" | compare |
| sdd Pulled in | 238,698 | 0.21x | 7 | 38d | category Concurrency, category Data structures, keyword "concurrent" | compare |
| crossbeam-deque Established | 1,924,167 | 1.73x | 142 | 49d | category Algorithms, category Concurrency | compare |
| crossbeam-channel Widely used | 1,564,625 | 1.41x | 2,767 | 49d | category Algorithms, category Concurrency | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with dashmap; 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 dashmap: 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 dashmap, 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. 240,754 real downloads a day.sccRust crate. A collection of high-performance asynchronous/concurrent containers with both asynchronous and synchronous interfaces. Real use: 241K downloads a day on...Read it next →Also worth your time