CATEGORY

No standard library 11,888 crates

Data as of 2026-07-25 (crates.io database dump, timestamp 2026-07-25T02:00:36Z). Source: crates.io · db-dump.tar.gz · methodology & corrections.

arceos-runlinuxapp-qfrRun Linux ELF applications on ArceOS: loads and runs a user-space Linux app (compiled with musl libc) with ELF parsing, syscall…16GPL-3.0-or-later OR Apache-2.0 OR MulanPSL-2.0 No standard library Operating systems arceos-helloworld-qfrA simple helloworld crate (from crates.io) for ArceOS16GPL-3.0-or-later OR Apache-2.0 OR MulanPSL-2.0 No standard library Operating systems motus-springPhysics-based spring animations for the Motus animation library.16MIT OR Apache-2.0 Game development No standard library flux-isa-miniMinimal no_std FLUX ISA constraint VM for bare-metal microcontrollers — sensor gateway to intelligence16Apache-2.0 Algorithms Embedded development neco-formsumexact rational linear combinations of radical monomials16MIT Mathematics No standard library as6221AS6221 digital temperature sensor driver (sync + async, no_std)16MIT Embedded development Hardware support asm330lhhx-rsPlatform-agnostic driver for the ASM330LHHX high-accuracy 3D accelerometer and gyroscope with ultra-low noise, smart FIFO,…16BSD-3-Clause Embedded development No standard library iot-coreCore types for the iot-protocols SDK: Thing model, IotClient trait, errors, paths, protocol bindings.16MIT OR Apache-2.0 Embedded development Network programming ternary-wasmTernary agent system compiled to WebAssembly for browser-based intelligence16MIT No standard library WebAssembly media-typerParse and format media types (type/subtype+suffix) per RFC 6838. A faithful port of the `media-typer` npm package. Zero…16MIT OR Apache-2.0 No standard library Parser implementations cn-devNational-grade secure AES-256 key generation library with advanced obfuscation, memory protection, and anti-debugging16MIT Cryptography No standard library roda-wasm-abiErgonomic, no_std guest-side ABI for writing roda-ledger WASM transaction modules in Rust.16Apache-2.0 API bindings No standard library konst_repeat_nThis crate can repeat the literal N times.16MIT No standard library cssescEscape a string for use as a CSS string or identifier. A faithful port of the cssesc npm package. Zero deps, no_std.16MIT OR Apache-2.0 Encoding No standard library ferthA safe, native-sized Forth. no_std compatible.16MIT Compilers No standard library adumbratioComposable building blocks for probabilistic data structures (sketches), with the classical sketches assembled from them15MIT OR Apache-2.0 Algorithms Data structures bumper-allocA from-scratch bump/arena allocator in Rust. Linear allocation, zero per-object overhead, automatic cleanup.15MIT Memory management No standard library tpt-zero-numstrInteger and float to string conversion and back. #![no_std], zero dependencies, with an alloc layer for String-returning helpers.15MIT OR Apache-2.0 Encoding No standard library geometric-traitsTrait-based algebraic and graph algorithms for Rust, supporting no_std environments15MIT Algorithms Data structures lending_iterLending iterator15Apache-2.0 OR BSL-1.0 OR MIT No standard library Rust patterns rec_cellZero-cost borrow-checking of aliased references with cyclic construction15MIT OR Apache-2.0 Memory management No standard library ax25sdlGenerated AX.25 v2.2 SDL state-machine tables (figc4.x) as no_std-capable Rust data.15AGPL-3.0-or-later Embedded development Network programming oxirouterAutonomous Semantic Federation Engine for the Edge - Learned source selection for SPARQL federated queries with context-awareness15Apache-2.0 No standard library Science quanticaPure-Rust post-quantum cryptography: FIPS 203 ML-KEM, FIPS 204 ML-DSA, and FIPS 205 SLH-DSA. First-order arithmetic masking,…15Apache-2.0 Cryptography Embedded development arbitrary-typeturn an arbitrary compile-time byte sequence into a distinct, zero-sized type, identified by its const SHA-256 digest.15Apache-2.0 OR MPL-2.0 Data structures No standard library karpal-toposTopos-theoretic constructions: small categories, presheaves, sieves, the subobject classifier, Grothendieck topologies, and…15Apache-2.0 No standard library Rust patterns neco-algnumexact real algebraic numbers with certified root isolation15MIT Mathematics No standard library rhyve-x86Hardware-virtualization backend (Intel VT-x, AMD-V) for the rhyve hypervisor15MIT OR Apache-2.0 No standard library Virtualization buffoMemory-backed buffer toolkit with Chunk/ChunkMut traits for predictable, explicit, and retry-friendly access; ideal for Sans-I/O…15MIT OR Apache-2.0 Data structures Encoding pqc-vault-tfmHybrid post-quantum library: BB84 QKD (simulated) + ML-KEM-768 + AES-256-GCM encryption and ML-DSA-65 digital signatures.15MIT Cryptography No standard library meterbus-wired-datalinkWired M-Bus datalink primitives and codecs15MIT OR Apache-2.0 Embedded development Network programming eeprom-24c02-halAn embedded-hal driver for Microchip 24Cxx series EEPROMs over I2C15MIT OR Apache-2.0 Embedded development Hardware support tjpgd-rsA no_std compatible Rust translation of the TJpgDec library.15MIT Embedded development Multimedia::Images as5048b_magnetic_encoderDriver for the AMS AS5048B magnetic rotary encoder over I²C, built on embedded-hal 1.0.15MIT Embedded development Hardware support constoaFormat integers into a byte buffer at compile time — const fn, panic-free, no_std, and dependency-free.15MIT OR Apache-2.0 Encoding No standard library beav-rsplaceholder for an embedded toolkit field work14MIT OR Apache-2.0 Embedded development No standard library tpt-zero-colorRGB/RGBA/HSV color types with hex parsing. #![no_std], zero dependencies.14MIT OR Apache-2.0 Data structures Graphics aatpA tiny, zero-dependency, memory-safe binary transport for autonomous agents: framing with CRC32C integrity, zero-copy decode, a…14MIT Encoding Network programming bare-nttZero-allocation, div-free, bare-metal NTT over the Goldilocks field.14AGPL-3.0-only Hardware support Mathematics odsekLazy, pull-based composition of mathematical interval sets with open/closed endpoints, no_std-compatible.14MIT OR Apache-2.0 Data structures Mathematics bare64A minimal, zero-dependency Base64 encoder/decoder in pure Rust14MIT OR Apache-2.0 Encoding No standard library st7305-driverDriver for the Sitronix ST7305 mono TFT display controller (e.g. Waveshare RLCD-4.2)14MIT Embedded development Hardware support spacedlsno_std CCSDS 355.0-B-2 (SDLS) Space Data Link Security implementation14Apache-2.0 Aerospace Cryptography tpt-zero-memSafe, no_std memory utilities including secure (non-elidable) zeroing14MIT OR Apache-2.0 Memory management No standard library ltc2949Client for the battery pack monitor chip LTC294914MIT OR Apache-2.0 Embedded development Hardware support scaleservers-arm32-assemblyARM 32-bit assembly encode/decode library covering BOTH instruction states: Thumb/T32 (the full M-profile line from ARMv6-M…14MIT OR Apache-2.0 Embedded development Encoding rxwingMinimalist pure Rust implementation of the X-Wing Key Encapsulation Mechanism (draft 10)14Apache-2.0 OR MIT Cryptography No standard library embedded-quaternion-f32Quaternions f32 pour rotations 4D no_std embarqué (Hamilton product, projection 4D->3D->2D)14GPL-2.0-or-later Embedded development Mathematics tpt-zero-channelBounded lock-free MPSC channel for #![no_std]. Zero dependencies.13MIT OR Apache-2.0 Concurrency Data structures implerMacros to generate an enum that implements a user-specified trait and wraps values of other types that implement the same trait,…13BSD-2-Clause OR Apache-2.0 OR MIT No standard library No standard library::No dynamic allocation treeshapPure-Rust, zero-dependency SHAP (TreeSHAP) explainability for tree ensembles.13MIT OR Apache-2.0 No standard library Science serprogA cross-platform Rust implementation of serprog protocol for flashrom13MIT Embedded development Hardware support flux-hdcHyperdimensional Constraint Matching Library for no_std and std environments13MIT OR Apache-2.0 Algorithms Embedded development neco-exprexact expression graphs with certified floating-point approximations13MIT Mathematics No standard library light_configA no-std library to parse plain-text configuration files efficiently.13MIT Configuration No standard library st12-1SMPTE ST 12-1:2014 Linear Timecode (LTC) — the 80-bit logical LTC codeword: BCD time address, drop/color frame flags, binary…13MIT OR Apache-2.0 Multimedia No standard library rpn-engineReverse Polish Notation evaluator — zero-allocation, no_std, and const-evaluable, over a caller-provided stack buffer.13MIT OR Apache-2.0 Algorithms Mathematics localHelp you make Rust code safer. Macros to provide locally scoped safe alternatives to unsafe references or values.12BSD-2-Clause OR Apache-2.0 OR MIT Development tools No standard library privateHelp you make Rust code more accident-proof. Macros to enable other crates to export macros (either declarative/by example/using…12BSD-2-Clause OR Apache-2.0 OR MIT Development tools No standard library tpt-zero-matrixSmall f32 matrix math (Mat3/Mat4) for #![no_std]. #![no_std], zero dependencies, fast-math backed.12MIT OR Apache-2.0 Game development Mathematics tpt-zero-slugASCII/Latin-1-safe slug generation. #![no_std], zero dependencies, buffer-writer core API.12MIT OR Apache-2.0 Encoding No standard library tpt-zero-globGlob pattern matching (*, ?, [...], **). #![no_std], zero dependencies, byte-slice based.12MIT OR Apache-2.0 No standard library Text processing tpt-zero-jsonZero-alloc pull JSON tokenizer plus an alloc-backed Value model. #![no_std] core, dependency-free.12MIT OR Apache-2.0 Encoding No standard library tpt-zero-quatSmall f32 quaternion math (Quat) for #![no_std]. #![no_std], zero dependencies, fast-math backed.12MIT OR Apache-2.0 Game development Mathematics st291SMPTE ST 291-1 ancillary (ANC) data content — typed parse/serialize for its transports: ST 2038:2021 MPEG-2 TS carriage…12MIT OR Apache-2.0 Multimedia No standard library global-allocatorA tiny, dependency-free building block for defining a custom global allocator in any Rust crate.12MIT OR Apache-2.0 Memory management No standard library lib-q-mayoMAYO multivariate signature scheme (NIST additional-signatures round 2), MAYO_2 parameter set12Apache-2.0 Cryptography No standard library restrictedPrevent consumers of your Rust macros from accidents. Enable crates to export private-like types, traits and functions that are…12BSD-2-Clause OR Apache-2.0 OR MIT Development tools No standard library lib-q-zk-encryption-proofRED/unsigned: ZK-STARK proof of correct encryption (proof-of-knowledge of message mu) for lib-q-threshold-kem-lattice ciphertexts.12Apache-2.0 Cryptography No standard library tpt-zero-bloomFixed-size Bloom filter for probabilistic set membership, #![no_std]12MIT OR Apache-2.0 Algorithms Data structures tpt-zero-bitsetFixed-size, highly optimized bit arrays for state tracking, #![no_std]12MIT OR Apache-2.0 Data structures No standard library tpt-zero-base85Z85 (ZeroMQ RFC 32) Base85 encoding/decoding into caller-supplied buffers, #![no_std], no alloc12MIT OR Apache-2.0 Encoding No standard library tpt-zero-cidrPure-core IPv4/IPv6 CIDR and subnet arithmetic (no std::net), #![no_std]12MIT OR Apache-2.0 Network programming No standard library rdd29SMPTE RDD 29:2019 Dolby Atmos bitstream — frame/element framing + bed/object metadata, no_std.12MIT OR Apache-2.0 Multimedia No standard library st337SMPTE ST 337-2015 non-PCM audio/data burst-preamble framing over AES3 — spec-complete parse/serialize, no_std.12MIT OR Apache-2.0 Multimedia No standard library text-chunkerSplit text into overlapping character windows for RAG and embedding pipelines — no_std, zero-dependency, never panics.12MIT OR Apache-2.0 Algorithms No standard library beavrsplaceholder for an embedded toolkit for fieldwork11MIT OR Apache-2.0 Embedded development No standard library smart-stringsSmall-string-optimized, niche-friendly compact UTF-8 and C string types for no_std.11MIT OR Apache-2.0 Data structures Memory management encryptionA no_std Ouroboros authentication engine with Speck-128/256, Davies-Meyer key stretching, and CTR-mode payload execution.11MIT Cryptography No standard library pkix-acRFC 5755 X.509 attribute certificate validation10Apache-2.0 OR MIT Cryptography No standard library tpt-zero-checkdigitLuhn, ISBN-10/13/EAN-13/UPC-A, and ISO/IEC 7064 MOD 11-2/MOD 37-2 check digits, #![no_std]10MIT OR Apache-2.0 Algorithms No standard library tpt-mime-purePure Rust MIME type detection via magic bytes. 100% no_std compatible10MIT OR Apache-2.0 Encoding Filesystem humanizerConvert data into clear, human-friendly text.10MIT OR Apache-2.0 Internationalization (i18n)No standard library rlnc-simdxSIMD-accelerated Random Linear Network Coding over GF(2^8) — no_std, maximum SIMD10Apache-2.0 Algorithms Encoding physPHY drivers for the ieee802_3_miim crate9MIT OR Apache-2.0 Embedded development Hardware support tulle-phy-profileClean-room LoRa PHY profiles shared by Tulle host and embedded code.9MPL-2.0 Embedded development No standard library rtschedA no_std runtime scheduler for Cortex-M thread management9MIT Embedded development No standard library diapauseCoroutines/generators for stable Rust via code transformation — no async, no Pin, no allocation, no unsafe code7MIT No standard library No standard library::No dynamic allocation