Crates / tikv-jemallocator / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to tikv-jemallocator
Short answerThe closest alternatives to tikv-jemallocator on crates.io data are slab (3M real downloads a day), bumpalo (2M real downloads a day), sharded-slab (1.7M real downloads a day). Of the 8 we list, the most used is socket2, and 7 shipped a release in the last year. tikv-jemallocator itself gets 295,126 a day with 435 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs tikv-jemallocator | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| slab Established | 3,013,568 | 10.21x | 619 | 9mo | category Memory management, keyword "allocator" | side by side |
| bumpalo Established | 1,968,716 | 6.67x | 546 | 5mo | category Memory management, keyword "allocator" | compare |
| sharded-slab Pulled in | 1,733,301 | 5.87x | 32 | 3.1y | category Memory management, keyword "allocator" | compare |
| slotmap Established | 345,609 | 1.17x | 545 | 11mo | category Memory management, keyword "allocator" | compare |
| alloc-stdlib Pulled in | 781,374 | 2.65x | 11 | 4mo | keyword "allocator" | compare |
| alloc-no-stdlib Pulled in | 767,634 | 2.60x | 18 | 4mo | keyword "allocator" | compare |
| socket2 Widely used | 4,034,112 | 13.67x | 1,539 | 3mo | category API bindings | compare |
| once_cell Widely used | 3,785,180 | 12.83x | 8,656 | 7mo | 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 tikv-jemallocator; 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 tikv-jemallocator: 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 tikv-jemallocator, 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. 3,013,568 real downloads a day.slabRust crate. Pre-allocated storage for a uniform data type. Real use: 3M downloads a day on quiet days; 619 crates depend on it.Read it next →Also worth your time