Crates / arc-swap / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to arc-swap
Short answerThe closest alternatives to arc-swap on crates.io data are sharded-slab (1.7M real downloads a day), crossbeam (375K real downloads a day), crossbeam-utils (2.7M real downloads a day). Of the 8 we list, the most used is slab, and 7 shipped a release in the last year. arc-swap itself gets 1,156,989 a day with 2,131 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs arc-swap | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| sharded-slab Pulled in | 1,733,301 | 1.50x | 32 | 3.1y | category Data structures, category Memory management, keyword "atomic" | compare |
| crossbeam Widely used | 374,913 | 0.32x | 1,418 | 49d | category Data structures, category Memory management, keyword "atomic" | compare |
| crossbeam-utils Established | 2,696,777 | 2.33x | 605 | 49d | category Data structures, keyword "atomic" | compare |
| crossbeam-epoch Established | 2,073,178 | 1.79x | 114 | 49d | category Memory management, keyword "atomic" | compare |
| dashmap Widely used | 1,112,131 | 0.96x | 4,694 | 5mo | category Data structures, keyword "atomic" | compare |
| portable-atomic-util Pulled in | 537,004 | 0.46x | 73 | 50d | category Data structures, keyword "atomic" | compare |
| slab Established | 3,013,568 | 2.60x | 619 | 9mo | category Data structures, category Memory management | compare |
| yoke Established | 2,599,767 | 2.25x | 104 | 2d | category Data structures, category Memory management | compare |
How to choose
- Same job, not the same API. Each line is listed because it shares a crates.io category or keyword with arc-swap; 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 arc-swap: 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 arc-swap, 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: Few direct dependents and quiet for years. 1,733,301 real downloads a day.sharded-slabRust crate. A lock-free concurrent slab. Real use: 1.7M downloads a day on quiet days; 32 crates depend on it.Read it next →Also worth your time