Crates / typed-arena / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to typed-arena
Short answerThe closest alternatives to typed-arena on crates.io data are bumpalo (2M real downloads a day), slotmap (346K real downloads a day), once_cell (3.8M real downloads a day). Of the 8 we list, the most used is once_cell, and 8 shipped a release in the last year. typed-arena itself gets 220,104 a day with 166 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs typed-arena | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| bumpalo Established | 1,968,716 | 8.94x | 546 | 5mo | category Memory management, category No standard library, keyword "arena" | compare |
| slotmap Established | 345,609 | 1.57x | 545 | 11mo | category Memory management, keyword "arena" | compare |
| once_cell Widely used | 3,785,180 | 17.20x | 8,656 | 7mo | category Memory management | compare |
| slab Established | 3,013,568 | 13.69x | 619 | 9mo | category Memory management, category No standard library | compare |
| yoke Established | 2,599,767 | 11.81x | 104 | 2d | category Memory management, category No standard library | compare |
| zerovec-derive Pulled in | 2,561,390 | 11.64x | 6 | 2d | category Memory management, category No standard library | compare |
| zerovec Pulled in | 2,516,803 | 11.43x | 60 | 2d | category Memory management, category No standard library | compare |
| lazy_static Foundational | 2,449,997 | 11.13x | 10,953 | 23d | category Memory management, 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 typed-arena; 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 typed-arena: 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 typed-arena, 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. 1,968,716 real downloads a day.bumpaloRust crate. A fast bump allocation arena for Rust. Real use: 2M downloads a day on quiet days; 546 crates depend on it.Read it next →Also worth your time