Browse Kotlin Multiplatform libraries

BER‑TLV/TLV parser for EMV payment data: recursive decode of constructed/primitive tags, hex-string I/O, comprehensive EMV tag dictionary, and rich value explainers and visualizations.

Automatic generation of type-safe navigation routes, serializers, per-screen Actions, wrappers and screen mappers from annotated Composable screens, eliminating manual polymorphic serialization and navigation boilerplate.

Multiplatform IM SDK: unified network, sync, local DB and event layers with Wire-generated protobufs, Ktor client, SQLDelight, coroutines and catalog-driven Gradle dependency management.

Arrow-shaped chat popovers with smart screen-edge positioning, modal barrier featuring anchor hole cutout, animated pivot transitions, configurable arrow/shape/spacing, and easy show/hide callbacks.

Coroutine-first mediator implementing CQRS and Vertical Slice patterns: requests routed to a single handler, notifications fan out, customizable behavior pipeline and registrar-based handler registration.

A-Z grouped contact list with sticky section headers, right-side alphabet index bar and draggable floating cursor; highly customizable builders and optional leading/trailing list slots.

Connector for an online multiplayer space game, offering client-side networking, object and event handling, messaging, and game-state synchronization; early beta for testing and development.

One-line audio recording, easy playback and OpenAI Whisper transcription via coroutine-style API; live waveforms, Compose-ready state/UI components, permission handling and WAV file I/O.

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.

Declarative composable charting library offering interactive, customizable line, bar, and pie charts with animations, gesture support, theming, and comprehensive documentation.

Line-by-line transliteration of upstream age implementation enabling age-format file encryption: recipient and passphrase encryption, SSH key support, multiple recipients, plugin integration; faithful port provenance via port-lint headers.

Collects, validates, and processes structured healthcare data via HL7 FHIR Questionnaires. Composable questionnaire renderer with pre-fill, validation, review page, and submit/cancel producing FHIR QuestionnaireResponses.

End-to-end encrypted messaging and cryptography toolkit featuring a CLI for login, group management, messaging, key package handling, and configurable build-time crypto/cache policies.

Calculates astronomical times, sunrise/sunset (NOAA default), and Jewish zmanim for prayers; offers ComplexZmanimCalendar, lazy computed zman properties, metadata-rich definitions, and an allZmanim list.

HTTP mocking for testing apps: start isolated mock servers, define rich request matchers, template dynamic responses, set invocation expectations, and pool servers to speed tests.

Extensible, strongly-typed OAuth2 implementation supporting RFC 6749 flows, token handling, and pluggable configuration; faithful line-by-line transliteration aiming for full feature parity with upstream.

Line-by-line transliteration port offering Async adapter for standard networking types, Timer futures, and a background reactor thread that polls OS I/O events and wakes awaiting tasks.

Website and backend API for managing in-app push notifications, offering a web frontend, REST endpoints, authentication, delivery pipeline, analytics hooks, and third‑party integrations.

Website and backend API for a ringtone service: serves the user-facing site, exposes REST endpoints, handles authentication, content management, and media delivery.

Preview generated stubs, inspect declaration differences, and compare API signatures with a lightweight interactive viewer offering instant diffs, annotation hints, and easy navigation.

SAX-style RTF reader/writer emitting sealed event streams and styled-text models, with streaming I/O adapters, Markdown↔RTF and AnnotatedString converters, robust charset and Unicode handling.

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.

Annotation-driven derivation of rich error types: auto-generated Display, source/From wiring, backtrace handling, message interpolation and transparent forwarding for concise, ergonomic error definitions.

Enables async methods in interfaces via generated adapter types and shims; faithful line-by-line port with provenance headers and strict porting discipline.

A standard Kotlin library that includes custom memory managment, profiling, vector math, extended concurrency and other utilities.

Circuit-based, zero-allocation frontend skeleton enabling deterministic, nanosecond-tier, lock-free data pipelines via flat, preallocated arrays, compiler-enforced memory budgets, SoA ECS and native UI bindings.

Logging to console, files, network, SigNoz and Firebase; global crash handling across coroutines, threads and native signals; install wrapper protects entry point and writes persistent, async-signal-safe crash reports.

Animated, brand-neutral button component morphing between expanded label and circular loading states, with filled/outlined variants, multiple shapes, and customizable colors, borders, elevation, and typography.

Unifies diverse LLM providers behind a single OpenAI-style API: streaming-first chat/embeddings/voice/realtime/batch modalities, per-model health-aware fallback chains, outbound control-plane auth and extensibility.