Crates / Changes
Rust crates · weekly movers · data Oct 24, 2026
Rust crate downloads: biggest movers this week
Week-on-week change in crates.io downloads for the 300 most-downloaded crates, with the quiet-day change next to it, so you can tell a release spike from a real shift in use.
Short answerIn the week of Oct 12, 2026 to Oct 18, 2026, the biggest riser among the 300 top crates was equivalent (+12% week on week) and the biggest faller tinyvec_macros (-1%). 1 of the top 10 risers shipped a release that week, so most big jumps are new-version traffic, not new users. The median crate moved +5.3%. 15 of the 300 crates published a version.
+12%top riser: equivalent
-1%top faller: tinyvec_macros
1 of 10top risers that shipped a release
15crates that published a version
Biggest risers, Oct 12, 2026 to Oct 18, 2026
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| equivalent | +12% | 28M | 25M | -0% | Release (1.0.3); quiet days barely moved (-0%), so it is mostly release traffic |
| proc-macro-crate | +10% | 15.3M | 13.9M | +10% | No release this week; quiet-day median moved +10%, a change in steady use |
| foldhash | +9% | 29.9M | 27.3M | +9% | No release this week; quiet-day median moved +9%, a change in steady use |
| bit-vec | +9% | 18M | 16.5M | +10% | No release this week; quiet-day median moved +10%, a change in steady use |
| miniz_oxide | +9% | 25.4M | 23.4M | +10% | No release this week; quiet-day median moved +10%, a change in steady use |
| const-oid | +8% | 20.7M | 19.1M | +8% | No release this week; quiet-day median moved +8%, a change in steady use |
| serde_json | +8% | 36.3M | 33.6M | +9% | No release this week; quiet-day median moved +9%, a change in steady use |
| base64 | +8% | 46M | 42.6M | +9% | No release this week; quiet-day median moved +9%, a change in steady use |
| allocator-api2 | +8% | 15.9M | 14.8M | +6% | No release this week; quiet-day median moved +6%, a change in steady use |
| num-integer | +8% | 18.9M | 17.5M | +8% | No release this week; quiet-day median moved +8%, a change in steady use |
Biggest fallers
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| tinyvec_macros | -1% | 12.9M | 13.1M | -3% | No release this week; quiet-day median moved -3%, a change in steady use |
| pin-utils | -0% | 9.7M | 9.7M | -3% | No release this week; quiet-day median moved -3%, a change in steady use |
| anstream | -0% | 18.1M | 18.2M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
| anstyle-parse | -0% | 18M | 18.1M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
| clap_derive | +0% | 18.4M | 18.4M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
| clap | +0% | 23.1M | 23.1M | -2% | No release this week; quiet-day median moved -2%, a change in steady use |
| clap_builder | +0% | 20.6M | 20.5M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
| colorchoice | +0% | 17.6M | 17.6M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
| anstyle-query | +0% | 17.4M | 17.4M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
| rustls-pemfile | +1% | 6.8M | 6.8M | +3% | No release this week; quiet-day median moved +3%, a change in steady use |
A faller the week after its release is normal: the release week was the spike. Look at the quiet-day column for a change in steady use.
Real movers: no release, steady use changed
Crates that shipped nothing this week, ranked by the change in their quiet-day median. These are the closest thing to real adoption changes in public data.
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| zeroize | +6% | 22.2M | 20.9M | +19% | No release this week; quiet-day median moved +19%, a change in steady use |
| serde_spanned | +7% | 21.5M | 20.1M | +18% | No release this week; quiet-day median moved +18%, a change in steady use |
| either | +5% | 26M | 24.8M | +17% | No release this week; quiet-day median moved +17%, a change in steady use |
| toml_datetime | +7% | 29.9M | 27.9M | +16% | No release this week; quiet-day median moved +16%, a change in steady use |
| hyper | +4% | 24M | 23M | +16% | No release this week; quiet-day median moved +16%, a change in steady use |
Who shipped this week
| Crate | Version(s) | Published | Week change |
|---|---|---|---|
| syn | 3.0.9 | Oct 12, 2026 | +8% |
| libc | 0.2.191 | Oct 16, 2026 | +5% |
| unicode-ident | 1.0.27 | Oct 12, 2026 | +8% |
| smallvec | 2.0.0-beta.3 | Oct 16, 2026 | +6% |
| sha2 | 0.11.1 | Oct 12, 2026 | +7% |
| tokio | 1.51.6, 1.53.3 | Oct 13, 2026 | +5% |
| zerocopy | 0.8.63 | Oct 13, 2026 | +5% |
| rustls | 0.24.0-dev.2, 0.23.46 | Oct 14, 2026 | +5% |
| equivalent | 1.0.3 | Oct 13, 2026 | +12% |
| redox_syscall | 0.9.5 | Oct 17, 2026 | +1% |
| zerocopy-derive | 0.8.63 | Oct 13, 2026 | +5% |
| deranged | 0.5.9 | Oct 13, 2026 | +8% |
| unicode-normalization | 0.1.26 | Oct 16, 2026 | +6% |
| rustls-native-certs | 0.8.5 | Oct 13, 2026 | +6% |
| schemars | 1.2.3 | Oct 12, 2026 | +7% |
Earlier weeks
Week of Oct 5, 2026 to Oct 11, 2026: bit-vec +12%, pin-utils -5%
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| bit-vec | +12% | 16.5M | 14.8M | +12% | No release this week; quiet-day median moved +12%, a change in steady use |
| powerfmt | +11% | 16.9M | 15.3M | +12% | Release (0.2.1); quiet days also moved +12% |
| want | +10% | 17M | 15.4M | +12% | Release (0.3.2); quiet days also moved +12% |
| phf | +10% | 19.8M | 17.9M | +9% | No release this week; quiet-day median moved +9%, a change in steady use |
| quick-xml | +10% | 14.6M | 13.2M | +10% | No release this week; quiet-day median moved +10%, a change in steady use |
| pin-utils | -5% | 9.7M | 10.2M | -7% | No release this week; quiet-day median moved -7%, a change in steady use |
| windows_i686_gnullvm | -2% | 15.3M | 15.6M | -5% | No release this week; quiet-day median moved -5%, a change in steady use |
| windows-link | -2% | 16.1M | 16.3M | -3% | No release this week; quiet-day median moved -3%, a change in steady use |
Week of Sep 28, 2026 to Oct 4, 2026: unicode-normalization +17%, env_logger -0%
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| unicode-normalization | +17% | 11.4M | 9.7M | +18% | No release this week; quiet-day median moved +18%, a change in steady use |
| vcpkg | +16% | 12.6M | 10.8M | +17% | No release this week; quiet-day median moved +17%, a change in steady use |
| phf_generator | +16% | 13M | 11.2M | +17% | No release this week; quiet-day median moved +17%, a change in steady use |
| bit-vec | +16% | 14.8M | 12.8M | +17% | No release this week; quiet-day median moved +17%, a change in steady use |
| phf | +15% | 17.9M | 15.6M | +16% | No release this week; quiet-day median moved +16%, a change in steady use |
| env_logger | -0% | 7.4M | 7.4M | +2% | No release this week; quiet-day median moved +2%, a change in steady use |
| prost-types | +2% | 9.8M | 9.6M | +2% | No release this week; quiet-day median moved +2%, a change in steady use |
| humantime | +3% | 5.9M | 5.7M | +5% | No release this week; quiet-day median moved +5%, a change in steady use |
Week of Sep 21, 2026 to Sep 27, 2026: synstructure +8%, backtrace -6%
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| synstructure | +8% | 19.4M | 18M | +8% | No release this week; quiet-day median moved +8%, a change in steady use |
| cfg-if | +8% | 32.1M | 29.8M | +14% | No release this week; quiet-day median moved +14%, a change in steady use |
| find-msvc-tools | +7% | 21.2M | 19.7M | +4% | Release (0.1.14); quiet days barely moved (+4%), so it is mostly release traffic |
| unicode-ident | +7% | 32.9M | 30.7M | +35% | No release this week; quiet-day median moved +35%, a change in steady use |
| zmij | +7% | 24.7M | 23.1M | +9% | No release this week; quiet-day median moved +9%, a change in steady use |
| backtrace | -6% | 5.9M | 6.3M | -6% | No release this week; quiet-day median moved -6%, a change in steady use |
| wasi | -5% | 13.9M | 14.6M | -4% | No release this week; quiet-day median moved -4%, a change in steady use |
| windows_i686_gnu | -4% | 20.3M | 21.3M | -5% | No release this week; quiet-day median moved -5%, a change in steady use |
Week of Sep 14, 2026 to Sep 20, 2026: prost-types +15%, tinyvec_macros -10%
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| prost-types | +15% | 9.4M | 8.2M | +12% | No release this week; quiet-day median moved +12%, a change in steady use |
| env_logger | +15% | 7.7M | 6.7M | +15% | No release this week; quiet-day median moved +15%, a change in steady use |
| windows-core | +13% | 12M | 10.6M | +10% | No release this week; quiet-day median moved +10%, a change in steady use |
| quick-xml | +13% | 11.8M | 10.5M | +9% | No release this week; quiet-day median moved +9%, a change in steady use |
| prost-derive | +12% | 11.9M | 10.6M | +9% | No release this week; quiet-day median moved +9%, a change in steady use |
| tinyvec_macros | -10% | 12.2M | 13.6M | -5% | No release this week; quiet-day median moved -5%, a change in steady use |
| either | +2% | 20.4M | 20M | +5% | No release this week; quiet-day median moved +5%, a change in steady use |
| ipnet | +2% | 13.6M | 13.3M | +2% | No release this week; quiet-day median moved +2%, a change in steady use |
Week of Sep 7, 2026 to Sep 13, 2026: winapi +1%, memchr -12%
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| winapi | +1% | 8.1M | 8M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
| quick-xml | +1% | 10.5M | 10.3M | +6% | No release this week; quiet-day median moved +6%, a change in steady use |
| encoding_rs | +1% | 9.7M | 9.7M | -34% | Release (0.8.40, 0.8.41); quiet days also moved -34% |
| windows-core | +0% | 10.6M | 10.6M | +19% | No release this week; quiet-day median moved +19%, a change in steady use |
| redox_syscall | -0% | 13.5M | 13.5M | -6% | No release this week; quiet-day median moved -6%, a change in steady use |
| memchr | -12% | 31M | 35.1M | -13% | No release this week; quiet-day median moved -13%, a change in steady use |
| regex | -10% | 21.5M | 24M | -12% | No release this week; quiet-day median moved -12%, a change in steady use |
| regex-syntax | -10% | 24.2M | 26.8M | -12% | No release this week; quiet-day median moved -12%, a change in steady use |
Week of Aug 31, 2026 to Sep 6, 2026: miniz_oxide +14%, libloading +1%
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| miniz_oxide | +14% | 17.9M | 15.7M | +12% | No release this week; quiet-day median moved +12%, a change in steady use |
| termcolor | +14% | 7.3M | 6.4M | +6% | No release this week; quiet-day median moved +6%, a change in steady use |
| const-oid | +12% | 14.4M | 12.9M | +8% | No release this week; quiet-day median moved +8%, a change in steady use |
| signature | +12% | 10M | 9M | +6% | No release this week; quiet-day median moved +6%, a change in steady use |
| env_logger | +12% | 7.2M | 6.5M | +8% | No release this week; quiet-day median moved +8%, a change in steady use |
| libloading | +1% | 10.2M | 10.1M | -4% | No release this week; quiet-day median moved -4%, a change in steady use |
| prost-derive | +1% | 11.2M | 11.1M | -6% | No release this week; quiet-day median moved -6%, a change in steady use |
| prost | +1% | 11.4M | 11.3M | -6% | No release this week; quiet-day median moved -6%, a change in steady use |
Week of Aug 24, 2026 to Aug 30, 2026: crc32fast +11%, redox_syscall -5%
| Crate | Week change | This week | Week before | Quiet-day change | Why |
|---|---|---|---|---|---|
| crc32fast | +11% | 14.5M | 13.1M | +13% | No release this week; quiet-day median moved +13%, a change in steady use |
| miniz_oxide | +10% | 15.7M | 14.4M | +10% | No release this week; quiet-day median moved +10%, a change in steady use |
| log | +9% | 25.7M | 23.6M | +10% | No release this week; quiet-day median moved +10%, a change in steady use |
| unicode-width | +8% | 14.6M | 13.4M | +12% | No release this week; quiet-day median moved +12%, a change in steady use |
| crossbeam-utils | +8% | 17.7M | 16.3M | +12% | No release this week; quiet-day median moved +12%, a change in steady use |
| redox_syscall | -5% | 13M | 13.8M | -4% | No release this week; quiet-day median moved -4%, a change in steady use |
| pin-utils | -4% | 8.5M | 8.9M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
| windows_aarch64_msvc | -2% | 18.9M | 19.3M | -1% | No release this week; quiet-day median moved -1%, a change in steady use |
Head-to-head comparisons
bincode vs postcardbincode vs rkyvactix-web vs rocketsqlx vs dieselsqlx vs sea-ormsqlx vs rusqlitesqlx vs tokio-postgressea-orm vs dieselegui vs icedegui vs slinticed vs slinttauri vs eguitauri vs dioxuscrossbeam vs rayondashmap vs papayabevy vs wgpuAll comparisons
How this is computed
Weeks run Monday to Sunday (crates.io dates, UTC). Week change = this week's downloads over last week's. Quiet-day change = the median of each week's days that are not in a release window (a release day or the day after), so a spike from a new version does not count. Only crates with 20,000+ downloads in the earlier week are ranked. Same data as the crate pages; method from our crates.io study. RSS: weekly feed.
Sources
- crates.io downloads API, per crate: crates.io/api/v1/crates/serde/downloads (example: serde)
- crates.io data access policy: crates.io/data-access (we fetch at one request every 2 seconds)