Browse Kotlin Multiplatform libraries

Event-driven, non-blocking asynchronous runtime featuring multithreaded work-stealing scheduler, reactor, async TCP/UDP and runtime primitives; faithful line-by-line transliteration of upstream implementation with provenance headers.

Generate native splash screens from a single Gradle DSL, auto-producing per-density assets and launch assets; runtime API to preserve/remove splash until UI ready, with dark‑mode and per‑flavor wiring.

Headless authentication SDK supporting consumer and B2B flows: OTPs, magic links, passwords, OAuth, passkeys, biometrics, TOTP, crypto wallets; session/user and organization management, RBAC, SCIM, recovery flows.

High-performance arbitrary-precision BigInteger and BigDecimal implementations with zero-overhead standard aliases, pure native hot paths plus LibTomMath fallback, and extensive microbenchmarks demonstrating major speedups.

Compile-time Jetpack Compose preview browser: annotate composables with @ComposePreview, run KSP, browse interactive previews without reflection or manual registration, auto-generated registry.

Type-safe, annotation-driven DataStore code generation producing zero-boilerplate compile-time implementations from simple interfaces; supports suspend and reactive reads, typed preferences, object serialization, and constructor/reflection instantiation.

Collection of libraries offering lexicographically-sortable ULIDs, zero-overhead 64-bit BitSet with bitwise ops and set-bit iteration, and unified asynchronous file I/O including OPFS support.

Encodes and decodes binary data to compact, human-friendly Base58 strings (plain, no checksum); includes fixed-width typed helpers (ints, UUIDs), preserves leading zeros, rejects invalid input.

Monitors network connectivity state and emits real-time callbacks via a lightweight API, enabling straightforward registration of listeners and simple integration into shared application code.

Material-style toast notifications with single root host, multiple styles (gradient, glass, animated), built-in success/error/warning/info types, custom icons, Lottie and action/duration controls.

compose multiplatform html render

Decomposes Compose presenters, eliminating callback and event plumbing by generating compile-time routing between parent and child events/effects, enabling clean, callback-free fused sub-presenters.

Enterprise-grade download manager with automatic HTTP Range resume, local SQLite persistence, lifecycle-aware scopes, disk-efficient streaming, and modern UI integrations for reactive and XML view systems.

Ready-to-use animated loading/spinner indicators with extensive customization, a linked catalog for lookup/random selection, and a showcase grid featuring 30+ styles.

Compile-time, type-safe object mapping via annotations; generated mappers return Result<T> with path-aware errors, compile-time lossless-conversion checks, fallback ladder, pluggable converters and observability.

Reimplements a Chinese music-service API with strict encryption parity (MD5, AES‑CBC, RSA‑PKCS1), modular design covering 17 categories and 112 endpoints for auth, search, songs, and playlists.

Modern image cropper with stretchable/resizable selection, image pan and zoom, locked bounds, 90° rotation, aspect-ratio presets (Free, 1:1, 4:3, 16:9), and automatic downscaling under 1 MB.

Unified, coroutine-friendly wrapper for native in-app review APIs, enabling a single requestReview() call to trigger platform review dialogs with a simple, exception-based completion contract.

UI-agnostic form validation toolkit standardizing immutable, testable input states; supports custom and dynamic validations, aggregated form validity, and submission lifecycle handling.

Direct Compose Desktop rendering into toolkit-owned Wayland wl_surface via EGL, bypassing X11/JAWT; creates wl_egl_window, resizes buffers, supports integer buffer and fractional UI scaling.

Pluggable read-through/write-through caching layer for database operations with interchangeable backends, volatile query caching auto-invalidated on writes, optional write-behind, and per-entry TTL support.

Logs outgoing HTTP client requests as reproducible cURL commands, capturing method, URL, headers and body; supports request filtering, sensitive-header sanitization, and custom logger integration.

Pure zero-runtime-dependency Zstandard codec producing standard zstd frames with dictionary support; immutable digested dictionaries reusable across threads, one-shot API, and decompression-bomb guard.

Offers utilities for creating interactive paginators with customizable buttons in messaging and interactions, enhancing user experience with dynamic content updates in chat applications.

Enhances web applications by configuring Content Security Policy headers, supporting default configurations, nonce generation for scripts, and customizable policies for specific routes or calls.

Multiplatform tag logger

Library for mobile shared architectures

Compiles an automated, self-updating catalogue of multiplatform projects from various maven repositories, featuring a web app for user-friendly data access and browsing.

Supports Kotlin as a target for ANTLR, offering a plugin for generating lexers, parsers, and listeners, along with a multi-platform runtime library. Experimental status.