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#no-std

Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.

560 records
Tagged “no-std”Ranked by health index
crates.io
56Moderatehealth index
astraw/levenberg-marquardt-sparse
Sparse Levenberg-Marquardt solver for nonlinear least squares problems.
Rust · Python★ 0↓ 2,011/moAug 8, 2026
MITAug 8, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
magiclen/rust-magiccrypt
MagicCrypt is a Java/PHP/NodeJS/Rust library to encrypt/decrypt strings, files, or data, using Data Encryption Standard(DES) or Advanced Encryption Standard(AES) algorithms. It supports CBC block cipher mode, PKCS7 padding and 64, 128, 192 or 256-bits key length.
Rust★ 37↓ 35.5K/moAug 22, 2026
Custom licenseAug 22, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
magiclen/utf8-width
To determine the width of a UTF-8 character by providing its first byte.
Rust★ 9↓ 4.8M/moAug 13, 2026
MITAug 13, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
owo-colors/owo-colors
A zero-allocation no_std-compatible zero-cost way to add color to your Rust terminal
Rust★ 805↓ 10.4M/moAug 11, 2026
MITAug 11, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
petgraph/fixedbitset
A simple bitset container for Rust
Rust★ 173↓ 33M/moAug 8, 2026
Apache-2.0Aug 8, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
rodrimati1992/konst
Const equivalents of std functions, compile-time comparison, and parsing.
Rust★ 124↓ 10.6M/moAug 13, 2026
ZlibAug 13, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
rust-embedded-community/hash32
32-bit hashing machinery
Rust★ 14↓ 13.6M/moAug 28, 2026
Apache-2.0Aug 28, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
rust-num/num-integer
Integer trait and functions for Rust
Rust★ 191↓ 40.1M/moAug 3, 2026
Apache-2.0Aug 3, 2026 · metrics 2.10.0
crates.io · npm
56Moderatehealth index
seanchatmangpt/bcinr
No repository description published.
Rust★ 1↓ 1,061/moJul 26, 2026
No licenseJul 26, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
twitchyliquid64/usbd-hid
No repository description published.
Rust★ 114↓ 268.7K/moAug 5, 2026
MITAug 5, 2026 · metrics 2.10.0
crates.io
56Moderatehealth index
valkyoth/sanitization
A dependency-free, no_std Rust crate for secure in-memory secret handling, constant-time checks, and automated clear-on-drop zeroization.
Rust · Python★ 1Jul 20, 2026
Apache-2.0Jul 20, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
AaronKutch/recasting
No repository description published.
Rust★ 0↓ 18.5K/moAug 28, 2026
Apache-2.0Aug 28, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
arkworks-rs/std
A standard library wrapper for use in the `arkworks` ecosystem
Rust★ 42↓ 7.7M/moAug 13, 2026
Apache-2.0Aug 13, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
daac-tools/crawdad
🦞 Rust library of natural language dictionaries using character-wise double-array tries.
Rust★ 38↓ 5,662/moAug 15, 2026
Apache-2.0Aug 15, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
harrychin/vlen
The fastest-decoding self-delimiting varint for Rust, embedded friendly to boot.
Rust★ 8↓ 2,567/moAug 28, 2026
MPL-2.0Aug 28, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
lambda-fairy/rust-errno
:boom: Cross-platform interface to the `errno` variable
Rust★ 79↓ 60.8M/moAug 4, 2026
Apache-2.0Aug 4, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
lettre/email-encoding
Encodings used in email
Rust★ 2↓ 1.4M/moJul 27, 2026
Apache-2.0Jul 27, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
magiclen/chinese-lunisolar-calendar
The traditional Chinese Calendar, known as 農曆 or 陰曆 in Chinese, is based on the moon, and is commonly referred to as the Lunar Calendar.
Rust★ 56↓ 931/moJul 19, 2026
MITJul 19, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
mrhooray/crc-rs
Rust implementation of CRC(16, 32, 64) with support of various standards
Rust★ 233↓ 20.2M/moAug 11, 2026
Apache-2.0Aug 11, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
roeeshoshani/index_type
No repository description published.
Rust★ 10↓ 4,344/moAug 2, 2026
No licenseAug 2, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
stencillogic/astro-float
Arbitrary precision floating point numbers library
Rust★ 119↓ 40.2K/moAug 8, 2026
MITAug 8, 2026 · metrics 2.10.0
crates.io · Go · npm +1
54Moderatehealth index
Rust · Go · TypeScript★ 5↓ 520/moAug 23, 2026
Apache-2.0Aug 23, 2026 · metrics 2.10.0
crates.io
54Moderatehealth index
trussed-dev/littlefs2-sys
Low-level Rust bindings to the littlefs microcontroller filesystem.
Rust★ 8Aug 5, 2026
BSD-3-ClauseAug 5, 2026 · metrics 2.10.0
crates.io
53Moderatehealth index
SecurityRonin/safe-read
Panic-free bounded integer readers over untrusted byte slices (no_std, no deps)
Rust★ 0↓ 2,104/moAug 9, 2026
Apache-2.0Aug 9, 2026 · metrics 2.10.0
crates.io
53Moderatehealth index
VoidStarKat/widestring-rs
A wide string Rust library for converting to and from wide-character strings, including UTF-16 and UTF-32 encoding.
Rust★ 100↓ 6.2M/moAug 11, 2026
Apache-2.0Aug 11, 2026 · metrics 2.10.0
crates.io
53Moderatehealth index
al8n/agnostic
Agnostic is a Rust ecosystem that provides runtime-agnostic abstractions for async operations. Write your async code once and run it seamlessly with tokio, smol, or even in WebAssembly - without code changes.
Rust★ 27↓ 62.8K/moAug 22, 2026
Apache-2.0Aug 22, 2026 · metrics 2.10.0
crates.io
53Moderatehealth index
alekseysidorov/include-utils
A more powerful replacement for standard macros
Rust · Nix★ 41↓ 24.3K/moAug 9, 2026
MITAug 9, 2026 · metrics 2.10.0
crates.io · PyPI · npm +1
53Moderatehealth index
artob/edky
Convert Ed25519 public keys between various encoding formats.
Rust★ 6↓ 3,008/moJul 21, 2026
UnlicenseJul 21, 2026 · metrics 2.10.0
crates.io
53Moderatehealth index
cesarb/constant_time_eq
Compares two equal-sized byte strings in constant time.
Rust★ 48↓ 20M/moAug 8, 2026
Apache-2.0Aug 8, 2026 · metrics 2.10.0
crates.io
53Moderatehealth index
fereidani/branches
Provides branch hinting and control functions for stable Rust
Rust★ 47↓ 231.7K/moJul 24, 2026
MITJul 24, 2026 · metrics 2.10.0