Crates / Compare / smallvec vs glam
Rust crates side by side · data Oct 24, 2026
smallvec vs glam
Short answerBy steady daily use, smallvec is bigger: 3,868,589 real downloads a day against 614,080 for glam (6.3x). 4,345 crates depend on smallvec and 1,525 on glam. smallvec last shipped 1 day ago, glam 18 days ago.
smallvec
Widely usedWidely used and steady.
4,345 crates depend on it; downloads don't spike on releases.
'Small vector' optimization: store up to a small number of items on the stack
glam
Widely usedWidely used and steady.
1,525 crates depend on it; downloads don't spike on releases.
A simple and fast 3D math library for games and graphics
smallvecglam · 100% = that crate's normal quiet day, so a spike to 300% is triple its usual traffic
Every number, side by side
| Same window, same method | smallvec | glam |
|---|---|---|
| Real downloads a day | 3,868,589 | 614,080 |
| Crates that depend on it | 4,345 | 1,525 |
| Last release | 1.16.4, 1 day ago | 0.34.1, 18 days ago |
| Trend vs the field | -2% | +7% |
| Release-window share | 18.8% | 25.6% |
| Downloads in the window | 339,700,171 | 57,348,867 |
| All-time downloads | 1,348,060,732 | 169,395,514 |
| Versions published | 86 | 99 |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| MSRV | not set | 1.85.0 |
| First published | Apr 6, 2015 | May 22, 2019 |
Which to pick
- Downloads tell you what is common, not what fits. Each crate's own description above says what it is for; when the jobs differ, pick by the job.
- When both fit, prefer the one more crates depend on (smallvec, 4,345 dependents): more eyes, more answered questions, and you may already have it in your tree.
- Check the release dates against your own pace: smallvec 1 day ago, glam 18 days ago.
Also in this space
Method
Real downloads = the median day with no release that day or the day before, from the crates.io API (Jul 27, 2026 to Oct 23, 2026). Raw crates.io counts include CI and bots and run high (why); the method is from our 90-day study.
Up next
Another comparison: Same method, same window. Widely used and steady vs established and steady.smallvec vs tinyvecRead it next →Also worth your time