Crates / lazycell / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to lazycell
Short answerThe closest alternatives to lazycell on crates.io data are once_cell (3.8M real downloads a day), lazy_static (2.4M real downloads a day), radium (771K real downloads a day). Of the 5 we list, the most used is once_cell, and 4 shipped a release in the last year. lazycell itself gets 237,089 a day with 29 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs lazycell | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| once_cell Widely used | 3,785,180 | 15.97x | 8,656 | 7mo | keyword "lazy" | compare |
| lazy_static Foundational | 2,449,997 | 10.33x | 10,953 | 23d | keyword "lazy" | compare |
| radium Pulled in | 771,396 | 3.25x | 6 | 16mo | keyword "cell" | compare |
| fragile Pulled in | 351,238 | 1.48x | 24 | 50d | keyword "cell" | compare |
| snafu Established | 263,488 | 1.11x | 998 | 3mo | keyword "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 lazycell; 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 lazycell: 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 lazycell, 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 steady. 3,785,180 real downloads a day.once_cellRust crate. Single assignment cells and lazy values. Real use: 3.8M downloads a day on quiet days; 8,656 crates depend on it.Read it next →Also worth your time