CATEGORY

Value formatting 696 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.

philiprehberger-duration-fmtHuman-readable duration formatting and parsing217MIT Date and time Value formatting fmtronA simple tool for autoformatting RON files.210MIT Command line utilities Development tools add_extAppend extensions to file paths / 为文件路径追加扩展名184MulanPSL-2.0 Command line utilities Development tools text_componentsA Rust implementation of Minecraft's Text Components178GPL-3.0-or-later Game engines Internationalization (i18n) rbox-derivesProc macros for rbox's pyo3 bindings177GPL-3.0-only Database interfaces Multimedia::Audio gukasha-rustradeA Rust toolbox focusing on trade and logistics that currently provides HS Code verification and conversion capabilities169LGPL-2.1-only Internationalization (i18n)Value formatting philiprehberger-maskData masking and redaction for strings, emails, and sensitive data166MIT Text processing Value formatting philiprehberger-byte-fmtHuman-readable byte size formatting and parsing162MIT Text processing Value formatting arvoValidated, immutable value objects for common domain types (email, money, identifiers, …)161MIT Data structures Value formatting einU.S. Employer Identification Number (EIN) parsing and validation159Apache-2.0 Parsing tools Value formatting smart-calculatorNatural-language calculator for math, units, time zones, dates, fiat, and crypto conversions151MIT Mathematics Parser implementations humfmtErgonomic human-readable formatting toolkit for Rust145MIT Text processing Value formatting moidMinimal opaque ID minter: random, optionally check-digited identifiers over a configurable alphabet, with a NOID-style check…137MIT OR Apache-2.0 Algorithms Value formatting ytdYouTube / Invidious daemon and CLI tool for crawling and processing channels with pre-configured commands vector134MIT Command line utilities Parsing tools utilities_rsA small library of Rust utilities129MIT Development tools Rust patterns ssnU.S. Social Security Number (SSN) parsing and validation125Apache-2.0 Parsing tools Value formatting rig-ai-sdkAI SDK Data Stream Protocol adapter for rig121MIT API bindings Asynchronous sparcliLightweight, cross-platform toolkit for styled CLI output and interactive input widgets118MIT Command-line interface Value formatting flarumdownFlarum down - read Markdown!108MIT Command line utilities Parsing tools enumfmtA procedural macro which generates formatted strings of enum varients based of a format string105MIT Value formatting const-ryuFast floating point to string conversion101Apache-2.0 OR BSL-1.0 No standard library No standard library::No dynamic allocation decamelizeConvert a camelCase string to a separated lower-case string (e.g. fooBar -> foo_bar). A faithful, zero-dependency port of the…98MIT OR Apache-2.0 No standard library Text processing cool-diffCompact, context-preserving diffs of structured data (serde_json::Value)98MIT OR Apache-2.0 Algorithms Development tools::Testing worker-matcherWorker matcher for healthcare information exchange: deterministic and probabilistic matching with multinational national…94MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0 OR BSD-3-Clause Data structures Science person-matcherPerson matcher for healthcare information exchange: deterministic and probabilistic matching with multinational national…92MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0 OR BSD-3-Clause Data structures Science pleme-brazilian-validatorsBrazilian document and format validators for Pleme platform (CPF, CNPJ, CEP, phone, PIX)90MIT Value formatting const-itoaFast integer primitive to string conversion87MIT OR Apache-2.0 No standard library No standard library::No dynamic allocation duration-partsA lightweight duration decomposition and formatting crate.85MIT Date and time No standard library ergo-prod-durationShared duration-literal parser for Ergo production config surfaces79MIT OR Apache-2.0 Configuration Date and time formatsa better, more versatile, format! macro77MIT Development tools Value formatting chisloConvert numbers to Russian words (числа прописью) with grammatical gender, noun declension, ordinals, currency, percentages,…76MIT Localization (L10n)No standard library wfuworksoup's formatting utilities76MIT No standard library Value formatting mask-piiA lightweight library to mask PII (Personally Identifiable Information) like emails and phone numbers.71MIT OR Apache-2.0 Text processing Value formatting si-prefixesA crate for converting between units using different SI prefixes.70MIT Development tools Mathematics philiprehberger-table-fmtTerminal table rendering with alignment, borders, Unicode support, and ANSI color awareness70MIT Command-line interface Value formatting philiprehberger-colorColor manipulation library — parsing, conversion, blending, contrast checking, and ANSI terminal output69MIT Command-line interface Value formatting caseidaeConvenient converters between letter casings of Rust identifiers.60AGPL-3.0-only Development tools Development tools::Procedural macro helpers cronspeakConvert cron expressions into clear, human-readable English descriptions (like cronstrue / cron-descriptor). Zero-dependency,…60MIT OR Apache-2.0 Date and time No standard library ai-timeA no_std fork of time58MIT OR Apache-2.0 Date and time No standard library tiny-itoano_std integer primitive to decimal string conversion57MIT No standard library No standard library::No dynamic allocation naira-formatA lightweight Rust crate for formatting and parsing Nigerian Naira (₦) amounts.55MIT Finance Value formatting cargo-cntp-i18nCommand line tools for managing cntp_i18n translation files55MIT Internationalization (i18n)Localization (L10n) patient-matchingPatient matching algorithms for healthcare information exchange55MIT OR Apache-2.0 OR GPL-2.0 OR GPL-3.0 OR BSD-3-Clause Data structures Science afidgenGenerate afid ids — human-friendly random identifiers.50MIT Data structures Value formatting num-to-englishConvert integers to their English word representation.49MIT OR Apache-2.0 Text processing Value formatting crate_validador_rustBiblioteca para validação de CPF em Rust.46MIT OR Apache-2.0 Algorithms Value formatting camelcaseConvert a dash/dot/underscore/space-separated string to camelCase (foo-bar -> fooBar). A faithful port of the camelcase npm…45MIT OR Apache-2.0 Text processing Value formatting iranianbankA comprehensive Rust library for validating Iranian bank cards and IBANs (Sheba).44MIT Finance Parsing tools v_concatA tiny library for blazing fast concatenation and prints44MIT OR Apache-2.0 Development tools No standard library fastcatFast string concatenation, with const-str support built in.43MIT OR Apache-2.0 No standard library Rust patterns stdnumnational/business ID and standard-number validation42MIT Internationalization (i18n)Parser implementations pretty-expressiveA pretty expressive printer41MIT Data structures Development tools netsemStandardized, pure-functional IP address validation and port checking utilities.40MIT Network programming Operating systems banglaA Rust crate for Bangla date, calendar, number conversion, currency, and Bangladeshi addresses.40MIT Date and time Internationalization (i18n) custom-displayA trait for implementing custom formatting logic for types37MPL-2.0 Development tools Rust patterns ipsortVersitile ip address sorting tool35GPL-3.0-or-later Command line utilities Development tools case_conv_macrosMacros to convert identifiers and string literals to strings in a different case style.34MIT Text processing Value formatting wcag-contrastCompute WCAG 2 color contrast ratios and AA/AAA pass levels from hex or RGB colors. Focused, zero-dependency accessibility helper.34MIT OR Apache-2.0 Accessibility Graphics 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 Internationalization (i18n)Mathematics numeric-rangeParse and format compact integer-range strings like "1,3-5,7" (page ranges, CPU sets, line selections). Bidirectional,…33MIT OR Apache-2.0 No standard library Parser implementations pretty-msConvert milliseconds to a human-readable string: 1337000000 -> "15d 11h 23m 20s". A faithful port of the pretty-ms npm package.…32MIT OR Apache-2.0 Date and time Value formatting besiA unit of measurement utility for use with Bevy.31MIT OR Apache-2.0 Science Value formatting indentkitDetect a string's indentation (tabs vs spaces + size) and re-indent / convert between styles. Like Node's detect-indent.…30MIT OR Apache-2.0 Development tools No standard library architecture-selectSelect the best match item based on platform and architecture. Used for github assets selection.30MIT Value formatting pipx-macrosProcedural macros for reducing boilerplate when implementing pipelines with pipx.29MIT Asynchronous Data structures jlf-coreEngine for jlf: zero-copy JSON parsing and template-based log formatting28MIT OR Apache-2.0 Parsing tools Value formatting hexettaFlexible CLI tool for printing files and data in multiple bases27GPL-3.0-only Command line utilities Development tools pipxComposable pipelines for Rust with synchronous and asynchronous execution, middleware-style processing, and predictable data flow.26MIT Asynchronous Data structures lossy-bytes-iter-displayDisplay UTF-8 lossy text from an iterator of byte chunks25MIT OR Apache-2.0 Encoding Value formatting rd-writerWriter serializing rd-ast documents back to Rd source text25MIT Text processing Value formatting smartquotesA tiny library whose only purpose is to format strings to use smart quotation marks and apostrophes24MIT OR Apache-2.0 Value formatting tw-colorsTailwind CSS v4 color palette as (u8, u8, u8) RGB constants24MIT OR Apache-2.0 Value formatting humansize-cliConvert raw amounts of bytes to human readable amounts of bytes (with their appropriate units)22GPL-3.0-or-later Command line utilities Value formatting nornir-humanizeThe ONE shared human-readable FORMATTING primitive for the nordisk constellation — byte sizes (`bytes` → `1.5 KiB`, IEC binary;…22MIT OR Apache-2.0 Development tools Value formatting nf-iconsCompile-time Nerd Font glyph lookup proc-macro.21MIT OR Apache-2.0 Value formatting humanize-stringConvert a camelCase / snake_case / dash-case string into a human-readable one (fooBar -> Foo bar). A faithful port of the…20MIT OR Apache-2.0 Text processing Value formatting deductVarious kinds of procedural macros for the Rust language.19MIT Development tools No standard library hlstate-httpdWeb scrapper for Xash3D/FWGS servers, based on Rocket engine19MIT Parsing tools Text processing duat-txt-macroA macro to create a Text struct from duat19AGPL-3.0-or-later Rust patterns Value formatting numeral-formatFormat numbers with the numeral.js format-string DSL (separators, decimals, abbreviations, currency, percentages, bytes,…19MIT OR Apache-2.0 Value formatting nearest-colorFind the nearest color from a palette by RGB distance, for hex / rgb() / named CSS colors. A faithful port of the nearest-color…19MIT OR Apache-2.0 Graphics Value formatting sort-keysRecursively sort the keys of a JSON object, for deterministic output. A faithful port of the sort-keys npm package.19MIT OR Apache-2.0 Text processing Value formatting spreadsheet-columnConvert between spreadsheet column numbers and letters (1 <-> A, 27 <-> AA). A faithful port of the spreadsheet-column npm…19MIT OR Apache-2.0 No standard library Text processing prompt-token-counterApproximate token counts for LLM messages, system prompts, and tools. Zero-config chars/4 heuristic, BYO tokenizer, content-block…18MIT OR Apache-2.0 API bindings Value formatting js_like_eqJavaScript-style loose equality, strict equality, relational comparison, and truthiness for serde_json::Value.18MIT OR Apache-2.0 Data structures Value formatting garudadidadaTiny zero-dependency helpers to turn machine values (bytes, durations, ordinals) into human-readable strings.18MIT Text processing Value formatting rodsAn elegant Rust library that converts modern digits into ancient Chinese counting rods (算籌), automatically alternating between…17MPL-2.0 Internationalization (i18n)Text processing maskifyZero-dependency, blazing-fast Rust crate for masking sensitive data — emails, phones, cards, Aadhaar, PAN, IPs & more. Comes with…17MIT Text processing Value formatting convert-unitsConvert between units of measurement (length, mass, volume, temperature, time, digital, ...) with a fluent API. A faithful port…17MIT OR Apache-2.0 Science Value formatting map-objRecursively map over the keys and values of a JSON object with a closure. A faithful port of the map-obj npm package.17MIT OR Apache-2.0 Data structures Value formatting pyformat-rsA faithful Rust port of Python's format() mini-language: format-spec parsing and int/str formatting, byte-for-byte compatible…16MIT Text processing Value formatting decamelize-keysRecursively convert the keys of a JSON object from camelCase to a separated lower-case (e.g. fooBar -> foo_bar). A faithful port…16MIT OR Apache-2.0 Text processing Value formatting price-parserExtract a price amount and currency from a string, guessing the decimal/thousands separator. A faithful port of the price-parser…15MIT OR Apache-2.0 Parser implementations Value formatting camelcase-keysRecursively convert the keys of a JSON object to camelCase. A faithful port of the camelcase-keys npm package.15MIT OR Apache-2.0 Text processing Value formatting nu_plugin_handlebarsAn `handlebars` command for Nushell for rendering Nu values using Handlebars templates14MIT Command line utilities Template engine humanizerConvert data into clear, human-friendly text.10MIT OR Apache-2.0 Internationalization (i18n)No standard library