Most downloaded Rust crates this week

1. 1
   hashbrown↗

   #1 now–new● Rust

   A Rust port of Google's SwissTable hash map

   v0.17.1
   10004 days
2. 2
   syn↗

   #2 now–new● Rust

   Parser for Rust source code

   v3.0.9
   9744 days
3. 3
   getrandom↗

   #3 now–new● Rust

   A small cross-platform library for retrieving random data from system source

   v0.4.3
   9494 days
4. 4
   rand↗

   #4 now–new● Rust

   Random number generators and other randomness functionality.

   v0.10.3
   9234 days
5. 5
   rand_core↗

   #5 now–new● Rust

   Core random number generator traits and tools for implementation.

   v0.1.1
   8974 days
6. 6
   bitflags↗

   #6 now–new● Rust

   A macro to generate structures which behave like bitflags.

   v2.13.2
   8714 days
7. 7
   thiserror↗

   #7 now–new● Rust

   derive(Error)

   v2.0.21
   8314 days
8. 8
   windows-sys↗

   #9 now–new● Rust

   Rust for Windows

   v0.61.2
   8234 days
9. 9
   thiserror-impl↗

   #8 now–new● Rust

   Implementation detail of the `thiserror` crate

   v2.0.21
   8064 days
10. 10
    quote↗

    #11 now–new● Rust

    Quasi-quoting macro quote!(...)

    v1.0.47
    7714 days
11. 11
    base64↗

    #10 now–new● Rust

    encodes and decodes base64 as bytes or utf8

    v0.23.1
    7694 days
12. 12
    libc↗

    #12 now–new● Rust

    Raw FFI bindings to platform libraries like libc.

    v0.2.191
    7524 days
13. 13
    indexmap↗

    #13 now–new● Rust

    A hash table with consistent order and fast iteration.

    v2.14.2
    7324 days
14. 14
    proc-macro2↗

    #14 now–new● Rust

    A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.

    v1.0.107
    7134 days
15. 15
    memchr↗

    #15 now–new● Rust

    Provides extremely fast (uses SIMD on x86_64, aarch64 and wasm32) routines for 1, 2 or 3 byte search and single substring search.

    v2.8.3
    6944 days
16. 16
    itertools↗

    #16 now–new● Rust

    Extra iterator adaptors, iterator methods, free functions, and macros.

    v0.15.0
    6754 days
17. 17
    unicode-ident↗

    #17 now–new● Rust

    Determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex #31

    v1.0.27
    6554 days
18. 18
    cfg-if↗

    #19 now–new● Rust

    A macro to ergonomically define an item depending on a large number of #[cfg] parameters. Structured like an if-else chain, the first matching branch is the item that gets emitted.

    v1.0.5
    6274 days
19. 19
    cpufeatures↗

    #18 now–new● Rust

    Lightweight runtime CPU feature detection for aarch64, loongarch64, and x86/x86_64 targets, with no_std support and support for mobile targets including Android and iOS

    v0.3.1
    6264 days
20. 20
    serde_json↗

    #20 now–new● Rust

    A JSON serialization file format

    v1.0.154
    5974 days
21. 21
    serde↗

    #21 now–new● Rust

    A generic serialization/deserialization framework

    v1.0.229
    5784 days
22. 22
    itoa↗

    #22 now–new● Rust

    Fast integer primitive to string conversion

    v1.0.18
    5594 days
23. 23
    serde_derive↗

    #23 now–new● Rust

    Macros 1.1 implementation of #[derive(Serialize, Deserialize)]

    v1.0.229
    5404 days
24. 24
    digest↗

    #24 now–new● Rust

    Traits for cryptographic hash functions and message authentication codes

    v0.11.3
    5204 days
25. 25
    block-buffer↗

    #25 now–new● Rust

    Buffer types for block processing of data

    v0.12.1
    5014 days

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