Browse Kotlin Multiplatform libraries
index data from klibs.ioIn-app support chat backed by Supabase, real-time messages, media, emoji reactions, swipe-to-reply quotes, shared conversation state with agent console, and anonymous client sign-in.
Line-by-line transliteration of RustCrypto/hashes, offering API parity across many cryptographic hash algorithms (SHA‑1, BLAKE2, MD5, …); includes source provenance headers.
Port of the ANTLR v4 runtime translating Java sources into a portable implementation, enabling ANTLR-generated parsers; runtime API parity work ongoing.
State-of-the-art starter pack organizing code with Clean Architecture and DDD: layered Domain/Data/Presentation, use-case invoke patterns, self-validating models, Koin DI, optimized CI/CD.
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.
Multifaceted AI tooling library delivering typed agent and tool contracts, streaming text and structured outputs, provider/gateway adapters, embeddings and media primitives, telemetry, mocks, and utilities.
Lightweight typed ID generation and parsing with compact formats, validation, deterministic creation, and easy serialization for strongly-typed identifiers across application domains.
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.
Bundles Stockfish 18 as packaged native engine, single dependency with coroutine-friendly suspend API for setPosition/search, singleton instance, thread-safe serialized calls, Full vs Lite NNUE variants.
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.
2D runtime for Compose apps offering scene/entity/system architecture, camera-aware rendering, normalized input events, asset registry, and optional physics including Barnes–Hut gravity.
EMVCo Merchant-Presented QR decoding for Colombia: full TLV parsing and EASPBV v1.4 field support, CRC-16 validation, lenient diagnostics, compact single-entry API and no shared-module dependencies.
Thin facade over Wire's Kalium SDK offering a streamlined API for secure citizen-to-government messaging, with a core SDK and a CLI reference implementation.
HTTP inspection for Ktor, capturing requests, responses, headers and bodies, with UI, HAR export, request/response overriding, filtering, sanitization and configurable retention.
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.
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.
Local logging toolkit routing structured mobile SDK logs to a developer-hosted server; stores per-device/session JSONL, supports redaction, simple tail/curl inspection and agent workflows.
High-performance PDF rendering and manipulation via PDFium: fast rasterization, text extraction, annotations, bookmarks, form handling, page transforms, and native bindings for multiple targets.
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.
E2E testing framework for Compose UI apps offering unified DSL, zero production-code pollution, automatic app discovery/orchestration, and built-in headless-friendly test recording.
Adaptive UI primitives and responsive patterns for admin, productivity, and data-heavy interfaces: breakpoints, adaptive layouts/grids, navigation scaffolds, tables-to-cards, form sections, feedback states, and polished components.
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.
On-device speech-to-text: extracts clean 16kHz audio, downloads and runs local models, returns transcripts with timing, language and confidence — no server or audio upload.
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.