Crates / num-iter / Alternatives
Rust crate alternatives · data Oct 24, 2026
Alternatives to num-iter
Short answerThe closest alternatives to num-iter on crates.io data are number_prefix (280K real downloads a day), bigdecimal (366K real downloads a day), smawk (273K real downloads a day). Of the 8 we list, the most used is rand, and 6 shipped a release in the last year. num-iter itself gets 1,144,112 a day with 32 dependents.
Every alternative we found
| Alternative | Real downloads a day | vs num-iter | Dependents | Last release | Why it is listed | |
|---|---|---|---|---|---|---|
| number_prefix Pulled in | 280,493 | 0.25x | 39 | 6.5y | category Algorithms, category No standard library, keyword "mathematics", keyword "numerics" | compare |
| bigdecimal Established | 365,613 | 0.32x | 588 | 26d | category No standard library, category Science, keyword "numerics" | compare |
| smawk Pulled in | 273,437 | 0.24x | 3 | 4mo | category Algorithms, category Science | compare |
| funty Pulled in | 764,480 | 0.67x | 40 | 3.7y | category No standard library, keyword "numerics" | compare |
| rand Foundational | 5,938,557 | 5.19x | 33,204 | 34d | category Algorithms, category No standard library | compare |
| rand_core Widely used | 5,860,713 | 5.12x | 2,597 | 52d | category Algorithms, category No standard library | compare |
| itertools Widely used | 4,545,996 | 3.97x | 8,656 | 4mo | category Algorithms, category No standard library | compare |
| rand_chacha Widely used | 4,016,327 | 3.51x | 1,903 | 9mo | category Algorithms, 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 num-iter; 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 num-iter: 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 num-iter, 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 losing ground. 280,493 real downloads a day.number_prefixRust crate. Library for numeric prefixes (kilo, giga, kibi). Real use: 280K downloads a day on quiet days; 39 crates depend on it.Read it next →Also worth your time