BROWSE A-Z
All 305,250 crates, alphabetically
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.
nul-terminatednull-terminated arrays2,006MIT OR Apache-2.0
nulaLayer-5 Nostr SDK facade: Client + ClientBuilder composing nula-core, nula-relay, nula-gossip, nula-sync.31MIT OR Apache-2.0
nula-blossomBlossom blob transport client (BUD-01/02/12) with NIP-24242 authorization, built on nula-core signers.36MIT OR Apache-2.0
nula-cliCommand-line interface for the nula Nostr workspace: keys, relay, event publish / fetch.17MIT OR Apache-2.0
nula-coreNostr protocol core: events, filters, keys, messages, NIP primitives.178MIT OR Apache-2.0
nula-gossipNIP-65 / NIP-17 multi-relay routing graph: outbox / inbox / hints / most-received with optional background refresher.48MIT OR Apache-2.0
nula-keyringPersist nostr `Keys` in the operating system's secure keychain (macOS Keychain, Linux Secret Service, Windows Credential Manager).36MIT OR Apache-2.0
nula-nwcNIP-47 Nostr Wallet Connect (NWC) client built on `nula-relay`. Drives a remote Lightning wallet service over encrypted DMs.18MIT OR Apache-2.0
nula-relayNostr relay layer: runtime-agnostic WebSocket transport, single-relay NIP-01 client, multi-relay pool, and an in-process relay…101MIT OR Apache-2.0
nula-signerNIP-46 (Nostr Connect) remote signer client built on top of `nula-relay`. Implements `nula_core::NostrSigner`.30MIT OR Apache-2.0
nula-storageNostr event-store trait surface: NIP-09 / NIP-40 / replaceable-kind semantics with pluggable backends.128MIT OR Apache-2.0
nula-syncNIP-77 Negentropy reconciliation sessions and storage adapters for the nula stack.111MIT OR Apache-2.0
nulidNanosecond-Precision Universally Lexicographically Sortable Identifier2,009MIT
nulid_deriveDerive macros for nulid wrapper types1,708MIT
nulid_macrosProcedural macros for nulid - convenient NULID generation523MIT
NULLInterpreter for the NULL language7,602MIT
null-authorizer-binA JAM authorizer which always authorizes. This is the prebuilt binary.3,504Apache-2.0
null-crateThis crate does nothing.1,299MIT
null-eCLI/TUI for null-e disk cleanup tool92WTFPL
null-e-coreCore library for null-e disk cleanup tool37WTFPL
null-engineA vapory engine which does not provide any consensus mechanism and does not seal blocks.3,594GPL-3.0
null-kanecurrency crate with the option to add your own currency localization logic24,890non-standard
null-pointerSimple 0x0.st file uploader9,735AGPL-3.0
null-sigmaHigh-performance Sigma rule engine — Aho-Corasick prefilter + compiled condition AST; ~311k events/sec × 1k synthetic rules or…83Apache-2.0
null-terminatedLibrary of null-terminated slices and UTF-8-encoded strings with thin references145,300MIT OR Apache-2.0
null-terminated-strFFI-friendly utf-8 string, enabling const null-terminated str and caching
of the non-terminated string to avoid frequent…20,192MIT
null-vecA specialized vector that stores nullable values.2,029MIT/Apache-2.0
null_fnA proc attribute macro that allows for creating null function pointers in statics13,290MIT
nullableA wrapper around raw pointers with lifetime tracking.3,141MIT
nullable-resultA replacement for Option<Result<T, E>> or Result<Option<T>, E>10,507MIT
nullable-utilsHelpers for working with James Shore's Nullables5,572Apache-2.0 OR MIT
nullable-utils-macrosHelpers for working with James Shore's Nullables (proc-macro crate)2,705Apache-2.0 OR MIT
nullable_structA derive macro that makes it easy to create nullable versions of structs.1,519Apache-2.0
nullderefNull dereference test20Apache-2.0
nulled_authA wrapper for nulled.to's updated authentication system implemented in rust3,949MIT
nullfsA blazingly simple, pragmatic, store agnostic, fully decentralized file system.18MPL-2.0
nullgeoGeneral-relativistic null-geodesic ray tracer (library)89MIT OR Apache-2.0
nullgeo-cliCommand-line ray tracer for null geodesics in arbitrary spacetimes35MIT OR Apache-2.0
nullisNullis23MIT
nullnet-firewallRust-based firewall for network drivers5,662Apache-2.0
nullnet-libappguardAn application-level firewall designed to secure and control network traffic6,070AGPL-3.0-only
nullnet-libconfmonConfiguration monitoring library for NullNet targets6,672MIT
nullnet-libdatastoreNullnet datastore driver11,651AGPL-3.0-only
nullnet-liberrorError handling library for NullNet5,289MIT
nullnet-libfireparseA library for parsing and translating firewall configurations across multiple NullNet targets10,468AGPL-3.0-only
nullnet-libipinfoIP information library for NullNet2,967AGPL-3.0-only
nullnet-libloggingLogging library for NullNet3,732MIT
nullnet-libresmonSystem resources monitoring library for NullNet2,736AGPL-3.0-only
nullnet-libtokenLibrary for managing and interacting with NullNet token structure5,240AGPL-3.0-only
nullnet-libwallguardA centralized management system for network firewalls5,825AGPL-3.0-only
nullnet-traffic-monitorTraffic monitor library for NullNet targets4,362AGPL-3.0-only
nullnet-wallguard-serverA centralized management system for network firewalls9,021MIT
nullsec-carfuzzCoverage-guided fuzzer for automotive protocols: CAN, UDS (ISO 14229), OBD-II (ISO 15031), DoIP (ISO 13400)20MIT
nullsec-discord-shieldDiscord token hardening and anti-theft protection - Monitors, encrypts, and protects Discord tokens from stealers and grabbers23MIT
nullsec-spoofHigh-performance metadata spoofing toolkit for anti-forensics - Randomize timestamps, MAC addresses, EXIF data, and file…24GPL-3.0
nulltermSimply runs ClearScreen to truly clear the terminal on most terminals and platforms1,562Apache-2.0 OR MIT
nulltermarrayiterIterator over raw pointer to null-terminated array; for FFI3,698MIT
nullvecRust nullable vector, which can contain null(missing) values as element13,363BSD-3-Clause
nulsNuShell-inspired ls with colorful table output, human-readable sizes, and recency-aware timestamps.476MIT
nuls-sdk-rustnuls sdk1,170MIT
numA collection of numeric types and traits for Rust, including bigint,
complex, rational, range iterators, generic integers, and…242,614,338MIT OR Apache-2.0
num-absurdA mathematical framework extending traditional field theory to allow division by zero in an algebraically consistent manner305MIT
num-algebraan algebra num type69MIT
num-alignSome hal for os76,253MIT
num-bigfloatIncreased precision floating point numbers implemented purely in Rust.308,229MIT
num-bigintBig integer implementation for Rust499,015,891MIT OR Apache-2.0
num-bigint-digBig integer implementation for Rust168,433,892MIT/Apache-2.0
num-bytesTraits for converting primitives into bytes.8,970Apache-2.0
num-chrono-durationProvide a convenient way to create `chrono::Duration` from numbers.1,765MIT
num-cmpComparison between differently typed numbers51,748,703MIT/Apache-2.0
num-complexComplex numbers implementation for Rust322,884,424MIT OR Apache-2.0
num-constsGeneral-purpose mathematical constants1,419MIT
num-conv`num_conv` is a crate to convert between integer types without using `as` casts. This provides
better certainty when refactoring,…453,211,964MIT OR Apache-2.0
num-decimalInfinite precision decimals with fair rounding and other gimmicks based
on num-rational.50,995GPL-3.0-or-later
num-deriveNumeric syntax extensions202,708,591MIT OR Apache-2.0
num-digitizeConverts integer of type N into Vec<i8> containing its digits.17,445WTFPL
num-dualGeneralized (hyper) dual numbers for the calculation of exact (partial) derivatives180,374MIT OR Apache-2.0
num-errBikesheding the error type for num traits797non-standard
num-formatA Rust crate for producing string-representations of numbers, formatted according to international standards61,685,096MIT/Apache-2.0
num-format-windowsA helper crate for num-format. Do not use directly.159,053MIT/Apache-2.0
num-format2A number formatting library for Rust1,314MIT
num-huarongdaofifteen puzzle lib7,315MIT
num-hyperdualGeneralized (hyper) dual numbers for the calculation of exact (partial) derivatives2,372MIT OR Apache-2.0
num-integerInteger traits and functions591,144,916MIT OR Apache-2.0
num-irrational`num-irrational` is based on `num` and extends it with support for several kinds of irrational numbers.13,798Apache-2.0
num-iterExternal iterators for generic mathematics318,372,208MIT OR Apache-2.0
num-lazyNumber macros for generic-typed functions.56,012BSD-3-Clause
num-literal-traitsConvert numerical literals from strings to numbers.1,120MIT
num-macrosdeprecated -- use num-derive85,437MIT/Apache-2.0
num-modularImplementation of efficient integer division and modular arithmetic operations with generic number types.
Supports various…25,933,130Apache-2.0
num-notationOffers multiple numeric choices, allowing you to work with various number representations including StandardForm, fractions, and…8,483MIT OR Apache-2.0
num-ordNumerically ordered wrapper type for cross-type comparisons7,928Zlib
num-orderNumerically consistent `Eq`, `Ord` and `Hash` implementations for various `num` types (`u32`, `f64`, `num_bigint::BigInt`, etc.)18,764,019Apache-2.0
num-ordinalOrdinal number types36,760MIT
num-packerProvides traits and implementations for packing and unpacking two numbers into a single value.1,032MIT OR Apache-2.0
num-parseGeneric, JavaScript-like parseInt() functions for Rust.12,937MIT
num-peekA CLI tool that can peek into `*.npy` files.949MIT
num-primeGeneric and optimized primality test, factorization and various number theoretic functions with arbitrary precision based on…5,448,352Apache-2.0
num-primesA Rust Library For Generating Large Prime and Composite Numbers using num with a simplistic interface.62,111Apache-2.0 OR MIT
num-primitiveTraits for primitive numeric types14,377MIT OR Apache-2.0
num-quaternionQuaternion numbers implementation for Rust41,628MIT OR Apache-2.0
num-rationalRational numbers implementation for Rust332,953,069MIT OR Apache-2.0
num-rational-parseA flexible string parsing extension for num_rational::Ratio, supporting fractions, decimals, and scientific notation (inspired by…59MIT OR Apache-2.0
num-rsRust crate for numerical and N-dimentional array computation1,594Apache-2.0
num-rug-adapterAn adapter to use num crate where rug is needed.12,578MIT/Apache-2.0
num-runtime-fmtFormat numbers according to a format spec determined at runtime.53,132GPL-3.0-only
num-shamanPartial implementation of inteval arithmetic for numerical robustness analysis1,641Unlicense
num-signenum Sign { Positive = 1, Negative = -1 }5,554MIT
num-tNum<T>: Associate arbitrary types with numeric types2,521MIT OR Apache-2.0
num-time-durationProvide a convenient way to create `std::time::Duration` from numbers.1,677MIT
num-toNumber conversions without using as.504MIT OR Apache-2.0
num-to-englishConvert integers to their English word representation.49MIT OR Apache-2.0
num-to-wordsNumber to words converter7,476non-standard
num-to-words-deConvert a u32 Integer into its String equivalent in the German Language2,821MIT OR Apache-2.0
num-traitsNumeric traits for generic mathematics873,852,403MIT OR Apache-2.0
num-unitsa unit library for rust31MIT
num-validA robust numerical library providing validated types for real and complex numbers to prevent common floating-point errors like…2,444non-standard
num-variantsUtility to add a constant value to enum variants19,216Apache-2.0
num-widthTrait to determine number width2,107MIT
num256Implementation of 256 bit integers460,274non-standard
num2enFor converting integer and decimal numbers into English cardinal or ordinal number words2,885MIT
num2exrCreates an exr image from numbers2,900Apache-2.0
num2ordinalA simple Rust crate for converting integers to ordinal representations, including support for alphabetic and Roman numeral…2,379MIT
num2phraseConvert long number to a sequence of memorisable phrase with combination of short numbers312Apache-2.0
num2wordsConvert numbers like 42 to forty-two134,759MIT OR Apache-2.0
num2words2-coreNumber-to-words conversion for 120+ languages (Rust port of num2words). 42 -> forty-two.436MIT OR Apache-2.0
num_aliassimple macros to declare 'type checked' aliases for integers and floats.13,725MIT
num_baseCrate for manipulating with numbers (integers) in different bases.15,334AGPL-3.0-only
num_boundAdd bounds fn to anything implementing `Ord` that bounds a number to a range5,274non-standard
num_convertType converting library, conversions integers by overflow addition,
supports generics types.24,560MIT
num_cpuGet the number of CPUs on a machine.5,946Apache-2.0
num_cpusGet the number of CPUs on a machine.537,612,523MIT OR Apache-2.0
num_enumProcedural macros to make inter-operation between primitives and enums easier.237,194,750BSD-3-Clause OR MIT OR Apache-2.0
num_enum_deriveInternal implementation details for ::num_enum (Procedural macros to make inter-operation between primitives and enums easier)237,075,201BSD-3-Clause OR MIT OR Apache-2.0
num_guessA fun game where you guess what number the computer has chosen.45MIT OR Apache-2.0
num_identities_constProvides a trait which holds a constant for ONE and ZERO of some types. Extension of num-traits crate.3,741MIT
num_opsA strict and expressive `no_std` numeric traits library for generics21MIT OR Apache-2.0
num_parserA math interpreter and evaluator5,138MIT
num_parser2A math interpreter and evaluator (fork of num_parser)989MIT
num_readerSmall lib for automating reading numbers from stdin3,959MIT
num_streamRust crate that provides a Stream that yields incrementing numbers at a specified interval5,134Apache-2.0
num_stringA simple crate to perform conversion between string and number1,612MIT
num_sysnumber conversion1,756MIT
num_threadsA minimal library that determines the number of running threads for the current process.211,540,191MIT OR Apache-2.0
num_train01_libnum train one1,252MIT OR Apache-2.0
num_train01_onenum train one1,471MIT OR Apache-2.0
num_train01_twonum train one794MIT OR Apache-2.0
num_vectorEnabling basic vector arithmetic operations1,237MIT
numaPortable DNS resolver in Rust — .numa local domains, ad blocking, developer overrides, DNS-over-HTTPS971MIT
numa-shim100% Rust NUMA detection and binding — no C/C++ libraries (no libnuma, no hwloc). Linux mbind(2) via raw syscall(2), Windows…30MIT OR Apache-2.0
numa_mapsParse the numa_maps file276,790MIT OR Apache-2.0
numaelis-rckive-genpdfUser-friendly PDF generator written in pure Rust498EUPL-1.2
numaflowRust SDK for Numaflow9,409Apache-2.0
numallocA blazing-fast, NUMA-aware memory allocator written in pure Rust209MIT
numanHumanize numbers: compact (1.2K), word (1.2 million) and SI metric (1.2 k) notation, plus parsing them back. Zero-dependency,…33MIT OR Apache-2.0
numan-cliA cross-platform package manager for Nushell78MIT
numancyNumerology calculations (Pythagorean and Brazilian cabalistic) as a pure, dependency-free Rust library.65Apache-2.0
numanjiLocal-affinity first NUMA-aware allocator with optional fallback9,295Apache-2.0/MIT
numaperfNUMA-first runtime for latency-critical Rust applications378MIT
numaperf-affinityThread pinning and CPU affinity management678MIT OR Apache-2.0
numaperf-benchBenchmark suite and CLI tools for numaperf25MIT
numaperf-coreCore types and error handling for the numaperf NUMA runtime1,830MIT OR Apache-2.0
numaperf-ioDevice locality discovery for NICs and storage454MIT OR Apache-2.0
numaperf-memNUMA-aware memory allocation and placement policies469MIT OR Apache-2.0
numaperf-perfNUMA locality observability and metrics collection456MIT
numaperf-schedTopology-aware work scheduling with locality-preserving stealing454MIT
numaperf-shardedPer-node sharded data structures for NUMA systems530MIT OR Apache-2.0
numaperf-topoNUMA topology discovery and CPU locality mapping1,778MIT OR Apache-2.0
numasnumas library is implementation of multidimensional array for efficient computing24,046MIT
numatimReturns a given number in words.2,825MIT
numaxiomLightweight numeric marker traits for ranges/signs plus constants and ops; std by default, no_std optional.48MIT OR Apache-2.0
numbNumerical computing for Rust913MIT
numb_rsAn experimental numeric package6,556MIT OR Apache-2.0
numba-wumboA goofy terminal game where you guess the secret number 🎮583MIT
numbagoupA tool to track the earnings of your yearn vaults (limited to crvCOMP vault for now)11,164MIT
numbarsNumerical data processing2,045MIT
numbatA statically typed programming language for scientific computations with first class support for physical dimensions and units.44,397MIT OR Apache-2.0
numbat-cliA statically typed programming language for scientific computations with first class support for physical dimensions and units.25,935MIT OR Apache-2.0
numbat-codecLightweight binary serializer/deserializer, written especially for Numbat smart contracts7,554GPL-3.0-only
numbat-codec-deriveMacro implementations of numbat-codec #[derive(NestedEncode, NestedDecode, TopEncode, TopDecode)]6,139GPL-3.0-only
numbat-exchange-ratesA library to fetch and parse currency exchange rates from the ECB20,038MIT OR Apache-2.0
numbat-interact-snippetsNumbat framework for building smart contract interaction snippets23GPL-3.0-only
numbat-sdk-drtrsNumbat Rust SDK for interacting with the Numbat Network and Smart Contracts.114MIT
numbat-wasmNumbat WebAssembly smart contract API8,117GPL-3.0-only
numbat-wasm-debugNumbat WebAssembly smart contract API debugging mocks and utils6,573GPL-3.0-only
numbat-wasm-deriveNumbat WebAssembly smart contract API procedural macros7,961GPL-3.0-only
numbat-wasm-module-bonding-curveNumbat Webassembly smart contract module that allows an address to sell tokens through a contract by defining a bonding curve…1,264GPL-3.0-only
numbat-wasm-module-dcdtNumbat WebAssembly smart contract module for using a single DCDT1,244GPL-3.0-only
numbat-wasm-module-dnsNumbat WebAssembly smart contract module that allows a contract to register its own name1,637GPL-3.0-only
numbat-wasm-module-featuresNumbat WebAssembly smart contract module for adding feature flags2,768GPL-3.0-only
numbat-wasm-module-governanceNumbat WebAssembly smart contract module that provides governance features1,262GPL-3.0-only
numbat-wasm-module-pauseNumbat WebAssembly smart contract module that provides a contract pause flag2,754GPL-3.0-only
numbat-wasm-module-usersNumbat WebAssembly smart contract module that provides a contract users flag2,760GPL-3.0-only
numbat-wasm-modulesNumbat WebAssembly standard smart contract modules956GPL-3.0-only
numbat-wasm-nodeNumbat WebAssembly VM API wrapper5,753GPL-3.0-only
numbat-wasm-outputNumbat WebAssembly panic handler and allocator declaration for the .wasm output3,519GPL-3.0-only
numbat-wasm-sc-dnsNumbat Domain Name Service smart contract22GPL-3.0-only
numbat-wasm-serdeNumbat WebAssembly Serde serializer2,782GPL-3.0-only
numberfast fixed-point integer operations54MIT
number-asExtend primitive number types to make them have a `number_as` method.18,632MIT