An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.

crates.io "no_std" keyword

Top 3.0% on crates.io
evm 1.1.1
Ethereum Virtual Machine
70 versions - Latest release: 7 months ago - 31 dependent packages - 247 dependent repositories - 1.66 million downloads total - 1,321 stars on GitHub - 1 maintainer
soroban-fixed-point-math 1.5.0
Fixed point math support for Soroban smart contracts
9 versions - Latest release: 9 months ago - 20.6 thousand downloads total - 16 stars on GitHub - 1 maintainer
Top 7.7% on crates.io
simdeez 3.0.1
SIMD library to abstract over different instruction sets and widths
37 versions - Latest release: 7 months ago - 9 dependent packages - 29 dependent repositories - 297 thousand downloads total - 376 stars on GitHub - 1 maintainer
animato-physics 1.7.2 💰
Input-driven physics, drag tracking, and gesture recognition for Animato.
16 versions - Latest release: 3 months ago - 4.02 thousand downloads total - 57 stars on GitHub - 1 maintainer
animato-tween 1.7.2 💰
Tween<T> single-value animation for the Animato animation library.
20 versions - Latest release: 3 months ago - 2.65 thousand downloads total - 57 stars on GitHub - 1 maintainer
animato-core 1.7.2 💰
Core traits and easing system for the Animato animation library.
20 versions - Latest release: 3 months ago - 5.3 thousand downloads total - 57 stars on GitHub - 1 maintainer
animato-spring 1.7.2 💰
Physics-based spring animations for the Animato animation library.
20 versions - Latest release: 3 months ago - 2.31 thousand downloads total - 57 stars on GitHub - 1 maintainer
Top 4.2% on crates.io
data-encoding 2.11.1
Efficient and customizable data-encoding functions like base64, base32, and hex
26 versions - Latest release: 2 months ago - 469 dependent packages - 7,395 dependent repositories - 460 million downloads total - 203 stars on GitHub - 1 maintainer
animato-color 1.7.2 💰
Perceptual color interpolation wrappers for the Animato animation library.
15 versions - Latest release: 3 months ago - 1.67 thousand downloads total - 57 stars on GitHub - 1 maintainer
urng_core 0.1.2
A minimal rng core library
3 versions - Latest release: about 2 hours ago - 23 downloads total - 0 stars on GitHub - 1 maintainer
ranged_bitmap 1.4.0
A high-performance bitmap library
5 versions - Latest release: about 2 months ago - 116 downloads total - 0 stars on GitHub - 1 maintainer
turbomcp-core 3.6.0
Core MCP types and primitives - no_std compatible for WASM targets
61 versions - Latest release: 13 days ago - 25.7 thousand downloads total - 98 stars on GitHub - 1 maintainer
prest-serde-derive-fork 1.0.216 💰
Macros 1.1 implementation of #[derive(Serialize, Deserialize)]
1 version - Latest release: almost 2 years ago - 1.65 thousand downloads total - 10,888 stars on GitHub - 1 maintainer
Top 0.4% on crates.io
serde 1.0.229 💰
A generic serialization/deserialization framework
316 versions - Latest release: 3 months ago - 39,083 dependent packages - 98,312 dependent repositories - 1.53 billion downloads total - 10,888 stars on GitHub - 1 maintainer
serde_agaby 1.0.217 💰
A generic serialization/deserialization framework
3 versions - Latest release: over 1 year ago - 2.17 thousand downloads total - 10,888 stars on GitHub - 1 maintainer
banish_derive 1.4.0
A declarative framework for rule-based state machines.
14 versions - Latest release: 7 months ago - 270 downloads total - 111 stars on GitHub - 1 maintainer
banish 1.4.1
A declarative framework for rule-based state machines.
15 versions - Latest release: 6 months ago - 242 downloads total - 111 stars on GitHub - 1 maintainer
serde_derive-x86_64-unknown-linux-gnu 1.0.171-alpha.3 💰
Precompiled implementation of #[derive(Serialize, Deserialize)]
4 versions - Latest release: about 3 years ago - 4.82 thousand downloads total - 10,888 stars on GitHub - 1 maintainer
serde_core 1.0.229 💰
Serde traits only, with no support for derive -- use the `serde` crate instead
10 versions - Latest release: 3 months ago - 690 million downloads total - 10,888 stars on GitHub - 1 maintainer
Top 5.4% on crates.io
alt_serde_derive 1.0.119 💰
Macros 1.1 implementation of #[derive(Serialize, Deserialize)]
2 versions - Latest release: over 5 years ago - 3 dependent packages - 15 dependent repositories - 50.5 thousand downloads total - 10,888 stars on GitHub - 2 maintainers
Top 4.7% on crates.io
alt_serde 1.0.119 💰
A generic serialization/deserialization framework
2 versions - Latest release: over 5 years ago - 4 dependent packages - 16 dependent repositories - 72.7 thousand downloads total - 10,888 stars on GitHub - 2 maintainers
Top 0.4% on crates.io
serde_derive 1.0.229 💰
Macros 1.1 implementation of #[derive(Serialize, Deserialize)]
271 versions - Latest release: 3 months ago - 7,662 dependent packages - 78,049 dependent repositories - 1.45 billion downloads total - 10,888 stars on GitHub - 1 maintainer
serde_keyed_derive 1.0.196 💰
Macros 1.1 implementation of #[derive(Serialize, Deserialize)]
1 version - Latest release: over 2 years ago - 1.71 thousand downloads total - 10,888 stars on GitHub - 1 maintainer
Top 5.6% on crates.io
serde_derive_state 0.4.11 💰
Macros 1.1 implementation of #[derive(Serialize, Deserialize)]
15 versions - Latest release: 3 months ago - 4 dependent packages - 6 dependent repositories - 87.8 thousand downloads total - 10,888 stars on GitHub - 1 maintainer
geometric-traits 0.1.0
Trait-based algebraic and graph algorithms for Rust, supporting no_std environments
1 version - Latest release: 3 months ago - 2.38 thousand downloads total - 6 stars on GitHub - 1 maintainer
stackvector 2.0.0
StackVec: vector-like facade for stack-allocated arrays.
14 versions - Latest release: 3 months ago - 1 dependent package - 74 dependent repositories - 432 thousand downloads total - 3 stars on GitHub - 1 maintainer
writebuf-core 0.1.1
A writable buffer that implements fmt::Write or ufmt::uWrite
2 versions - Latest release: over 2 years ago - 2.64 thousand downloads total - 0 stars on GitHub - 1 maintainer
Top 3.9% on crates.io
libsecp256k1 0.7.2
Pure Rust secp256k1 implementation.
29 versions - Latest release: over 1 year ago - 182 dependent packages - 5,709 dependent repositories - 39 million downloads total - 184 stars on GitHub - 1 maintainer
alice-edge 0.2.1
Embedded Model Generator - Don't send data, send the law
4 versions - Latest release: about 5 hours ago - 109 downloads total - 1 stars on GitHub - 1 maintainer
Top 9.4% on crates.io
array-init-cursor 0.2.1
Utility crate to help keep track of arrays of MaybeUninit
3 versions - Latest release: over 1 year ago - 1 dependent package - 605 dependent repositories - 18.3 million downloads total - 130 stars on GitHub - 2 maintainers
fastbloom 0.17.0
The fastest Bloom filter in Rust. No accuracy compromises. Full concurrency support and compatibl...
22 versions - Latest release: 8 months ago - 22.6 million downloads total - 359 stars on GitHub - 1 maintainer
Top 3.3% on crates.io
ordered-float 5.5.0
Wrappers for total ordering on floats
60 versions - Latest release: about 2 months ago - 558 dependent packages - 9,439 dependent repositories - 486 million downloads total - 343 stars on GitHub - 2 maintainers
Top 5.9% on crates.io
ethereum 0.18.2
Core block and transaction types for Ethereum.
28 versions - Latest release: over 1 year ago - 12 dependent packages - 295 dependent repositories - 2.3 million downloads total - 134 stars on GitHub - 1 maintainer
Top 3.9% on crates.io
evm-core 0.43.0
Ethereum Virtual Machine
45 versions - Latest release: over 1 year ago - 5 dependent packages - 251 dependent repositories - 1.64 million downloads total - 1,321 stars on GitHub - 1 maintainer
Top 2.8% on crates.io
serde_cbor 0.11.2
CBOR support for serde.
24 versions - Latest release: about 5 years ago - 426 dependent packages - 5,355 dependent repositories - 86.4 million downloads total - 309 stars on GitHub - 1 maintainer
rtvm-interpreter 4.0.0
rtvm Interpreter
1 version - Latest release: over 2 years ago - 1.54 thousand downloads total - 1 maintainer
Top 1.6% on crates.io
smallvec 1.16.3
'Small vector' optimization: store up to a small number of items on the stack
84 versions - Latest release: 5 days ago - 1,616 dependent packages - 67,564 dependent repositories - 1.3 billion downloads total - 1,753 stars on GitHub - 2 maintainers
scratchpad 1.3.1
Stack-like memory allocator with double-ended allocation support
12 versions - Latest release: over 5 years ago - 40 dependent repositories - 18.4 thousand downloads total - 22 stars on GitHub - 1 maintainer
cell-project 0.1.4
Safe interface for cell projection
5 versions - Latest release: about 4 years ago - 7.85 thousand downloads total - 8 stars on GitHub - 1 maintainer
Top 2.0% on crates.io
rkyv 0.8.18 💰
Zero-copy deserialization framework for Rust
95 versions - Latest release: 2 months ago - 222 dependent packages - 3,139 dependent repositories - 169 million downloads total - 4,373 stars on GitHub - 1 maintainer
enum-map 3.1.0
A map with C-like enum keys represented internally as an array
82 versions - Latest release: 3 months ago - 99 dependent packages - 1,240 dependent repositories - 54.5 million downloads total - 0 stars on codeberg.org - 1 maintainer
array-macro 2.1.8
Array multiple elements constructor syntax
19 versions - Latest release: almost 3 years ago - 25 dependent packages - 232 dependent repositories - 10.5 million downloads total - 0 stars on codeberg.org - 1 maintainer
Top 5.4% on crates.io
linked_list_allocator 0.10.6
Simple allocator usable for no_std systems. It builds a linked list from the freed blocks and thu...
47 versions - Latest release: 6 months ago - 41 dependent packages - 242 dependent repositories - 6.58 million downloads total - 242 stars on GitHub - 1 maintainer
equivalent 1.0.3
Traits for key comparison in maps.
5 versions - Latest release: about 16 hours ago - 8 dependent packages - 16,485 dependent repositories - 913 million downloads total - 43 stars on GitHub - 1 maintainer
Top 2.7% on crates.io
either 1.19.0
The enum `Either` with variants `Left` and `Right` is a general purpose sum type with two cases.
36 versions - Latest release: 8 days ago - 904 dependent packages - 53,651 dependent repositories - 1.1 billion downloads total - 562 stars on GitHub - 3 maintainers
unicode-reverse 1.0.9
Unicode-aware in-place string reversal
10 versions - Latest release: over 2 years ago - 1 dependent package - 2 dependent repositories - 8.73 million downloads total - 20 stars on GitHub - 1 maintainer
Top 1.7% on crates.io
csv-core 0.1.13 💰
Bare bones CSV parsing with no_std support.
14 versions - Latest release: 12 months ago - 22 dependent packages - 9,525 dependent repositories - 264 million downloads total - 1,963 stars on GitHub - 1 maintainer
rawpointer 0.2.1 💰
Extra methods for raw pointers and `NonNull<T>`. For example `.post_inc()` and `.pre_dec()` (c.f...
3 versions - Latest release: about 7 years ago - 12 dependent packages - 6,961 dependent repositories - 144 million downloads total - 5 stars on GitHub - 2 maintainers
smallvec-stableunion 0.6.10
Fork of the crate smallvec. Uses unions in stable rust. Please note that it can only store Copy t...
1 version - Latest release: about 7 years ago - 1 dependent package - 3.75 thousand downloads total - 1,753 stars on GitHub - 1 maintainer
fn_overloads 0.2.0
Create functions with varying arguments and return types. Please don't use this.
2 versions - Latest release: almost 3 years ago - 2.75 thousand downloads total - 2 stars on GitHub - 1 maintainer
suit_cbor 0.1.1
Lightweight no_std utilities for lazy CBOR decoding
2 versions - Latest release: 8 months ago - 165 downloads total - 0 stars on GitHub - 1 maintainer
Top 2.3% on crates.io
base64 0.23.1
encodes and decodes base64 as bytes or utf8
45 versions - Latest release: 2 months ago - 4,847 dependent packages - 60,264 dependent repositories - 1.72 billion downloads total - 740 stars on GitHub - 2 maintainers
os_kernel_foundry 0.1.5
A modular, heavily test-driven foundation crate for building Rust-based operating systems in Rust.
6 versions - Latest release: 8 months ago - 259 downloads total - 1 maintainer
ultrahdr-core 0.6.0
Core gain map math and metadata for Ultra HDR - no codec dependencies
12 versions - Latest release: 3 months ago - 49.5 thousand downloads total - 19 stars on GitHub - 1 maintainer
Top 4.1% on crates.io
unicase 2.10.0 💰
A case-insensitive wrapper around strings.
29 versions - Latest release: 9 days ago - 201 dependent packages - 24,505 dependent repositories - 430 million downloads total - 100 stars on GitHub - 1 maintainer
frusa 0.1.3
A system allocator with reclaim.
4 versions - Latest release: 11 months ago - 2 dependent packages - 6.09 thousand downloads total - 1,097 stars on GitHub - 1 maintainer
er 0.7.0
Er, errors with less r
14 versions - Latest release: 7 days ago - 204 downloads total - 10 stars on GitHub - 1 maintainer
er-unsync 0.7.0
Er with Rc sharing and errors without Send/Sync requirements
1 version - Latest release: 7 days ago - 10 downloads total - 10 stars on GitHub - 1 maintainer
antsi 0.0.0-reserved
A no-std mini-crate that provides support ANSI escape sequences
1 version - Latest release: over 3 years ago - 1.69 thousand downloads total - 1,674 stars on GitHub - 2 maintainers
deer-json 0.0.0-reserved
A backend-agnostic fail-slow deserialization framework
1 version - Latest release: over 3 years ago - 1.62 thousand downloads total - 1,674 stars on GitHub - 2 maintainers
Top 2.3% on crates.io
slab 0.4.12 💰
Pre-allocated storage for a uniform data type
19 versions - Latest release: 9 months ago - 441 dependent packages - 57,925 dependent repositories - 1 billion downloads total - 948 stars on GitHub - 1 maintainer
whassup 0.0.0-reserved
Ask what's up, get a status back
1 version - Latest release: about 3 years ago - 1.52 thousand downloads total - 1,674 stars on GitHub - 1 maintainer
deer 0.0.0-reserved
A backend-agnostic fail-slow deserialization framework
1 version - Latest release: over 3 years ago - 1.57 thousand downloads total - 1,674 stars on GitHub - 2 maintainers
bigerror-error-stack 0.6.0-alpha
A context-aware error-handling library that supports arbitrary attached user data
1 version - Latest release: about 1 year ago - 578 downloads total - 1,674 stars on GitHub - 1 maintainer
Top 3.3% on crates.io
hex 0.4.3 💰
Encoding and decoding data into/from hexadecimal representation.
9 versions - Latest release: over 5 years ago - 4,594 dependent packages - 33,666 dependent repositories - 710 million downloads total - 274 stars on GitHub - 1 maintainer
Top 4.2% on crates.io
error-stack 0.8.0
A context-aware error-handling library that supports arbitrary attached user data
16 versions - Latest release: 3 months ago - 73 dependent packages - 181 dependent repositories - 5.22 million downloads total - 1,674 stars on GitHub - 2 maintainers
baedeker-gpu 0.1.0
GPU compute host module for the Baedeker WebAssembly runtime
1 version - Latest release: 2 months ago - 20 downloads total - 1 stars on GitHub - 1 maintainer
deer-macros 0.0.0-reserved
A backend-agnostic fail-slow deserialization framework
1 version - Latest release: over 3 years ago - 1.63 thousand downloads total - 1,674 stars on GitHub - 2 maintainers
baedeker-ffi 0.1.0
C-compatible FFI for the Baedeker WebAssembly runtime (staticlib/cdylib)
1 version - Latest release: 2 months ago - 20 downloads total - 1 stars on GitHub - 1 maintainer
baedeker-cli 0.1.0
Baedeker WebAssembly runtime — command-line test harness
1 version - Latest release: 2 months ago - 21 downloads total - 1 stars on GitHub - 1 maintainer
Top 1.5% on crates.io
indexmap 2.14.2
A hash table with consistent order and fast iteration.
57 versions - Latest release: about 1 month ago - 2,133 dependent packages - 60,616 dependent repositories - 1.68 billion downloads total - 2,449 stars on GitHub - 2 maintainers
error-stack-macros 0.0.0-reserved
Macros for the `error-stack` crate
1 version - Latest release: about 4 years ago - 1.59 thousand downloads total - 1,674 stars on GitHub - 2 maintainers
Top 3.9% on crates.io
lexical 7.0.5
Lexical, to- and from-string conversion routines.
52 versions - Latest release: about 1 year ago - 50 dependent packages - 2,108 dependent repositories - 34.7 million downloads total - 365 stars on GitHub - 2 maintainers
Top 1.3% on crates.io
lock_api 0.4.14
Wrappers to create fully-featured Mutex and RwLock types. Compatible with no_std.
27 versions - Latest release: about 1 year ago - 91 dependent packages - 56,441 dependent repositories - 1.07 billion downloads total - 3,425 stars on GitHub - 2 maintainers
Top 2.7% on crates.io
toml_datetime 1.1.2+spec-1.1.0 💰
A TOML-compatible datetime type
25 versions - Latest release: 7 days ago - 32 dependent packages - 12,396 dependent repositories - 889 million downloads total - 1,083 stars on GitHub - 1 maintainer
Top 6.8% on crates.io
lexical-write-float 1.0.6
Efficient formatting of floats to strings.
12 versions - Latest release: about 1 year ago - 1 dependent package - 2,289 dependent repositories - 120 million downloads total - 365 stars on GitHub - 1 maintainer
Top 5.8% on crates.io
lexical-write-integer 1.0.6
Efficient formatting of integers to strings.
11 versions - Latest release: about 1 year ago - 2 dependent packages - 2,290 dependent repositories - 120 million downloads total - 365 stars on GitHub - 1 maintainer
Top 2.1% on crates.io
arrayvec 0.7.8 💰
A vector with fixed capacity, backed by an array (it can be stored on the stack too). Implements ...
57 versions - Latest release: 3 months ago - 774 dependent packages - 35,627 dependent repositories - 616 million downloads total - 909 stars on GitHub - 1 maintainer
Top 4.6% on crates.io
lexical-parse-float 1.0.6
Efficient parsing of floats from strings.
10 versions - Latest release: about 1 year ago - 6 dependent packages - 2,378 dependent repositories - 136 million downloads total - 365 stars on GitHub - 1 maintainer
Top 5.6% on crates.io
lexical-parse-integer 1.0.6
Efficient parsing of integers from strings.
11 versions - Latest release: about 1 year ago - 2 dependent packages - 2,381 dependent repositories - 136 million downloads total - 365 stars on GitHub - 1 maintainer
Top 4.6% on crates.io
lexical-util 1.0.7
Shared utilities for lexical creates.
13 versions - Latest release: about 1 year ago - 5 dependent packages - 2,391 dependent repositories - 136 million downloads total - 365 stars on GitHub - 1 maintainer
Top 3.5% on crates.io
lexical-core 1.0.6
Lexical, to- and from-string conversion routines.
43 versions - Latest release: about 1 year ago - 39 dependent packages - 7,088 dependent repositories - 161 million downloads total - 365 stars on GitHub - 2 maintainers
Top 2.7% on crates.io
tinyvec 1.13.3 💰
`tinyvec` provides 100% safe vec-like data structures.
43 versions - Latest release: about 1 month ago - 152 dependent packages - 46,575 dependent repositories - 794 million downloads total - 755 stars on GitHub - 1 maintainer
Top 2.3% on crates.io
toml 1.1.8+spec-1.1.0 💰
A native Rust encoder and decoder of TOML-formatted files and streams. Provides implementations o...
122 versions - Latest release: 6 days ago - 4,713 dependent packages - 42,910 dependent repositories - 998 million downloads total - 1,081 stars on GitHub - 1 maintainer
toml_writer 1.1.3+spec-1.1.0 💰
A low-level interface for writing out TOML
12 versions - Latest release: 7 days ago - 230 million downloads total - 1,083 stars on GitHub - 1 maintainer
toml_parser 1.1.5+spec-1.1.0 💰
Yet another format-preserving TOML parser.
17 versions - Latest release: 6 days ago - 344 million downloads total - 1,083 stars on GitHub - 1 maintainer
nam-indexmap 2.7.1-nam.0
(Namada fork) A hash table with consistent order and fast iteration.
1 version - Latest release: almost 2 years ago - 60.9 thousand downloads total - 2,448 stars on GitHub - 1 maintainer
Top 5.4% on crates.io
anstyle 1.0.14 💰
ANSI text styling
31 versions - Latest release: 7 months ago - 97 dependent packages - 6,196 dependent repositories - 810 million downloads total - 172 stars on GitHub - 1 maintainer
anstyle-hyperlink 1.0.2 💰
ANSI escape code hyperlinks (OSC 8)
3 versions - Latest release: 7 months ago - 607 thousand downloads total - 172 stars on GitHub - 1 maintainer
anstyle-progress 0.1.4 💰
ANSI escape code progress reporting (OSC 9;4)
6 versions - Latest release: 3 months ago - 1.36 million downloads total - 172 stars on GitHub - 1 maintainer
dashmap-shard 0.1.1
A Rust port of Google's SwissTable hash map
2 versions - Latest release: almost 7 years ago - 1 dependent package - 2 dependent repositories - 9.45 thousand downloads total - 2,998 stars on GitHub - 1 maintainer
Top 1.1% on crates.io
hashbrown 0.17.1
A Rust port of Google's SwissTable hash map
56 versions - Latest release: 5 months ago - 1,086 dependent packages - 59,745 dependent repositories - 2.69 billion downloads total - 2,998 stars on GitHub - 2 maintainers
Top 9.5% on crates.io
hashbrown_tstd 0.7.1
A Rust port of Google's SwissTable hash map
1 version - Latest release: over 6 years ago - 1 dependent package - 2 dependent repositories - 11.8 thousand downloads total - 3,001 stars on GitHub - 1 maintainer
Top 3.5% on crates.io
half 2.7.1 💰
Half-precision floating point f16 and bf16 types for Rust implementing the IEEE 754-2008 standard...
33 versions - Latest release: about 1 year ago - 265 dependent packages - 11,901 dependent repositories - 502 million downloads total - 282 stars on GitHub - 1 maintainer
Top 4.9% on crates.io
hashlink 0.12.2 💰
HashMap-like containers that hold their key-value pairs in a user controllable order
22 versions - Latest release: about 1 month ago - 59 dependent packages - 5,908 dependent repositories - 375 million downloads total - 139 stars on GitHub - 2 maintainers
ax-ctor-bare-macros 0.4.10
Macros for registering constructor functions for Rust under no_std.
6 versions - Latest release: about 1 month ago - 3.1 thousand downloads total - 74 stars on GitHub - 1 maintainer
arm-scmi-rs 0.1.11
ARM SCMI (System Control and Management Interface) protocol implementation for no_std embedded en...
11 versions - Latest release: about 1 month ago - 1.76 thousand downloads total - 74 stars on GitHub - 1 maintainer
cv181x-sdhci 0.1.8
Cvitek CV181x/SG2002 SDHCI host wrapper for sdmmc-protocol
9 versions - Latest release: about 1 month ago - 1.01 thousand downloads total - 74 stars on GitHub - 1 maintainer
axvirtio-net 0.2.1
VirtIO network device implementation with MMIO transport for hypervisors
3 versions - Latest release: about 1 month ago - 640 downloads total - 74 stars on GitHub - 1 maintainer
axvirtio-common 0.2.7
Common types, traits, and utilities for VirtIO device implementations
9 versions - Latest release: 22 days ago - 1.09 thousand downloads total - 74 stars on GitHub - 1 maintainer