Browse Kotlin Multiplatform libraries

MIME type guessing from file extensions using a static extension-to-MIME map; supports multiple MIME types per extension, returning the first as the preferred match.

Password hashing and verification with bcrypt, offering salt generation, adjustable cost (work factor), and straightforward dependency integration for secure credential storage and authentication.

Line-by-line diffing utilities for finding and manipulating file differences, with provenance-tracking source headers and faithful upstream behaviour for reproducible, inspectable diffs.

Detects text character encodings robustly using a line-by-line, streaming algorithm; faithful transliteration of an established implementation, aiming feature parity and an idiomatic native API.

Reusable design system offering tokens, semantic theming, curated icons, UI components, preview/testing utilities and an exhaustive component catalog with sample apps and documentation.

Regular-expression engine with deterministic worst-case performance, avoids backreferences/look-around, supports named captures, byte-oriented APIs, RegexSet multi-pattern scanning, iterators, and exposed internals/parser.

Loads and parses .env-style key-value files with non-modifying and environment-modifying APIs, configurable loader, reader support, multiline/substitution handling, and compile-time/runtime loading options.

Lightweight utilities simplifying data manipulation: bit checks, binary and hex formatting, structured byte-array reads with endianness control, and direct numeric-array conversions.

Manages runtime permissions, prompts and status via activity-bound controller; coroutine-friendly API, usable isGranted checks outside setup, and lifecycle-aware request handling.

Compact immutable collections, mutable primitive buffers, persistent queues and heaps, plus Option/Either/Validated result types—primitive buffers avoid boxing; includes Arr, ArrMap, BankersQueue, LeftistHeap.

Declarative Gen<T> DSL for property-based data generation, deterministic tape replay, simple shrinking/minimization, generated function values via CoGen, and low-level tape/bit utilities for deterministic testing.

Compact, sorted-range representation of character sets enabling fast membership checks, set algebra (union/intersect/difference/invert), and deterministic partitioning via topology-based refinement for parsers, lexers, automata.

Maps structured serialization models to deterministic SCREAMING_SNAKE_CASE environment variables and back into typed configs, supporting nested objects, indexed lists, encode-defaults control, and testable map-based API.

Cursor-based character input layer for parsers, offering lookahead, mark/reset, source positions, span capture, in-memory and streaming inputs, plus small default token parsers (identifiers, quoted strings, whitespace, decimals).

Deterministic pseudo-random generators with mutable Random implementations and serializable immutable-state snapshots for reproducible simulation, testing, procedural generation; includes Philox, Threefry, xoshiro and L64X128 with block APIs.

Identity-based reference wrapper and collection helpers enabling reference-equality keys, identity sets/maps, lazy distinct-by-identity sequences, and diagnostic identity strings for interning, memoization, and cycle detection.

Dependency-light utilities rendering Java-style escaped strings and characters with configurable quote handling, char-class friendly escapes for [] and -, Unicode/control escape forms, and truncation with suffix.

Decides which throwables to rethrow from broad catch blocks, preserving fatal errors, interruptions, cancellations, control-flow and contract violations; supports configurable policies and suppressed-failure handling.

Detects runtime environment as an enum, exposes currentPlatform constant, offers lightweight, easy-to-integrate API and extensible hooks for telemetry-friendly platform metadata.

Safe-area and window-inset utilities for Compose, offering rememberWindowInsetsController, WindowInsetsController APIs, a WindowInsets UIViewController wrapper, navigation/status bar padding modifiers, and runtime visibility control.

Safe-area utilities calculating display insets, applying edge paddings/margins, and dispatching window insets for consistent UI layout across varying device display cutouts and system bars.

Collection of extension functions and small utilities improving API ergonomics, DSL creation, common conversions, testing helpers and interop conveniences for library development.

Shared libraries published to Maven Central; modules versioned and released independently via tag-driven publish workflow that publishes only the tagged module; consumers need only mavenCentral.

Utility extensions for common types, coroutine-safe runCatching, flow helpers (single‑consumption, saved‑state and preference‑backed StateFlows), lifecycle stream, MD5/hex, semantic versioning, image/string helpers.

Line-by-line transliteration of RustCrypto/hashes, offering API parity across many cryptographic hash algorithms (SHA‑1, BLAKE2, MD5, …); includes source provenance headers.

Lightweight utilities for building web3 applications with minimal overhead, emphasizing simple, well-documented APIs and an idiomatic client to interact with EVM chains.

Schema-first validation with fluent, composable rules and Joi-like DSL — chainable validators, nested and cross-field checks, schema composition, strict/partial modes, and structured error objects.

Declarative, type-safe DSL for defining and parsing bitfield schemas into labeled fields. Supports single-bit flags, multi-bit enums, RFU ranges, parse-time callbacks and fail-fast validation.

Localization library for date/time objects, offering localizer classes, options and localize() extensions, with standalone vs absolute formatting for months, weekdays, time zones, dates and durations.

Augments enums with string conversions, parsing from integers, iteration, variant metadata and messages, discriminants, variant arrays/names, and compile-time generated utilities with optional debug dumps.