Open-source alternatives to Swift Protobuf

protobuf.js is a JavaScript and TypeScript library for encoding and decoding structured data using the Protocol Buffers binary format. It functions as a dynamic parser that can load and process schemas at runtime, a JSON transcoder for converting messages to human-readable formats, and a framework for building transport-agnostic remote procedure call clients. The project distinguishes itself by offering both dynamic message handling and a static code generator that produces TypeScript declarations and JavaScript modules to reduce runtime overhead. It also provides a reflection API for definin

This project is a Protocol Buffers implementation for Go, providing a binary serialization framework to convert native data structures into a compact binary format for efficient network transmission and storage. It functions as a language bindings generator, utilizing a compiler plugin to create Go source code from platform-neutral protocol buffer definitions. The implementation includes a JSON data mapper that transforms structured binary messages into JSON format to facilitate compatibility with web services and external APIs. It also enables cross-language data exchange by using a common s

Sui is a blockchain platform featuring an object-centric state model and resource-oriented smart contracts. It utilizes parallel transaction execution to increase network throughput and supports programmable transaction blocks that bundle multiple operations into single atomic units. The platform distinguishes itself with a capability-based access control system and zero-knowledge login mechanisms, enabling users to authenticate via identity providers without seed phrases. It also implements deterministic object addressing to allow predictable state lookups and supports the creation of soulbo

Buf is a toolchain for managing the full lifecycle of Protocol Buffers schemas. It provides a set of tools for schema governance, including linting to enforce style guides, a breaking change detector to ensure backward compatibility, and a system for producing language-specific source code via local or remote plugins. The project distinguishes itself through a remote schema registry that centralizes the hosting, versioning, and distribution of Protocol Buffers modules. This registry allows for server-side enforcement of governance policies, such as blocking updates that introduce backward-inc

rinf is a cross-platform native bridge and integration layer used to connect business logic written in Rust to application frontends. It functions as a cross-language message broker and binary serialization framework that enables the exchange of structured data between a Rust backend and user interfaces across mobile, desktop, and web targets. The project utilizes a schema-driven code generator to produce language-specific message classes from shared definitions. This ensures type-safe message passing and consistency across different programming environments, preventing data mismatches during

Subql is a blockchain data indexing framework and TypeScript-based indexer used to extract raw blockchain events and transactions and transform them into structured, queryable data entities. It functions as a data API and a tool for building decentralized application backends, providing a query interface for type-safe access to indexed blockchain data. The project includes an AI-powered query engine that utilizes large language models to translate natural language questions into structured GraphQL queries. This system can orchestrate multi-step queries by breaking down complex requests into s

Kryo is a Java binary serialization framework and object cloning library used to convert Java objects into a compact binary format and restore them from bytes. It provides a system for creating deep or shallow copies of complex object graphs without requiring binary conversion. The project utilizes variable-length integer encoding and integer-ID class registration to reduce the size of serialized data. It handles complex object graphs through circular reference tracking to prevent data duplication and infinite loops. To maintain long-term data viability, it includes schema evolution managemen

MagicOnion is a .NET RPC framework used to build type-safe remote procedure call services using shared interfaces for communication between servers and clients. It functions as a binary serialization framework and a distributed service orchestrator, providing a network layer for low-latency streaming and real-time data exchange. The project distinguishes itself through an AOT-compatible network client that uses source generators to support ahead-of-time compilation in restricted runtime environments. It enables bidirectional communication and real-time data streaming, allowing servers and mul

fastjson2 is a high-performance Java library used for serializing and deserializing Java objects to and from JSON strings and byte arrays. It functions as a binary JSON serializer for encoding objects into optimized binary formats to reduce payload size and increase processing speed. The project includes a JSONPath query engine for extracting specific data and fields from JSON documents using standardized path expressions and filters. It also serves as a JSON schema validator, providing utilities to generate data contracts and validate JSON input against defined schemas to ensure structural c

This project is an open-source software development kit and framework for implementing the Matter smart home standard. It provides a universal IPv6-based application layer and a cluster-based data model to ensure interoperability between diverse smart home devices and controllers. The system is distinguished by its multi-transport network abstraction, which maps Bluetooth LE, Thread, and Wi-Fi implementations to a common layer. It includes specialized tooling for secure device commissioning via QR codes and NFC, as well as a comprehensive over-the-air firmware update system for distributing s

protobuf-net is a binary serialization framework and .NET library that implements the Protocol Buffers specification. It functions as a schema-based serialization tool and contract-first data mapper, converting complex object graphs into a compact binary format for storage and network transmission. The library enables cross-platform data exchange and high-performance networking by reducing payload sizes and processing time. It specifically supports object hierarchy persistence, allowing the serialization and reconstruction of complex class structures that include inheritance and derived types

This library provides a framework for implementing gRPC clients and services in Rust, enabling reliable communication between distributed system components. It facilitates the definition and hosting of asynchronous unary and streaming network services, utilizing protocol buffers to ensure consistent, strongly-typed data exchange. The project distinguishes itself by integrating with a high-performance C core via foreign function interfaces to handle low-level networking and protocol logic. It employs a task-based concurrency model to coordinate non-blocking operations and utilizes zero-copy me

This project is a framework for the efficient serialization and deserialization of data structures. It provides a unified, macro-based interface that automates the conversion of complex internal objects into standardized formats and reconstructs them from raw input streams or buffers. By leveraging compile-time code generation, the library minimizes manual implementation overhead while ensuring consistent logic across diverse data types. The framework distinguishes itself through a format-agnostic data model and a visitor-based parsing architecture that decouples data structures from specific

Wire is a cross-platform code generator and implementation of gRPC and Protocol Buffers. It transforms schema definitions into type-safe native language bindings for Kotlin, Swift, and Java to ensure consistent data exchange and communication between distributed systems. The project provides specialized tools for protocol buffer schema management, including the ability to prune unused types and filter fields by version to reduce final binary sizes. It also handles namespace management and allows for the creation of custom schema handlers to execute user-defined logic during the compilation ph

GluonTS is a probabilistic time series library and deep learning forecasting framework. It provides a toolkit for building, training, and evaluating neural network architectures that predict future values as probability distributions to quantify uncertainty. The project distinguishes itself by supporting zero-shot forecasting and integrating diverse modeling approaches, including deep probabilistic neural networks and wrappers for external statistical libraries such as Prophet and R forecast. It implements specialized architectural primitives like causal convolutions and invertible residual n

Luban is a game configuration toolchain designed to convert spreadsheet-based data into optimized binary formats and type-safe source code for multiple languages. It functions as a comprehensive suite for configuration validation, data serialization pipelines, and code generation to ensure data consistency across different platforms. The system features a multi-language code generator that produces strongly-typed data classes from schemas, eliminating the need for reflection. It includes a localization manager for exporting translated text and assets with locale-specific patching, and a seria

sqlboiler is a database-first ORM generator for Go that analyzes an existing database schema to produce strongly typed structures and query helpers. It functions as a schema-driven code generator, transforming database tables and relationships into executable Go source code. The project distinguishes itself through a type-safe query builder that uses chainable modifiers to construct SQL statements, eliminating the need for raw string concatenation. It utilizes customizable text templates to generate source code, allowing for the aliasing of schema entities and the creation of custom templates

This project is a command-line schema-to-code converter designed to transform diverse data specifications into type-safe Python data structures. It functions as a generator for Pydantic models, dataclasses, and typed dictionaries, enabling developers to maintain synchronization between evolving data contracts and application code. By parsing formats such as JSON Schema, OpenAPI, AsyncAPI, Protobuf, and Avro, the tool automates the creation of native classes that reflect the constraints and metadata defined in the source specifications. The generator distinguishes itself through a highly confi

Ajv is a high-performance data validation framework that compiles JSON schemas into optimized, standalone JavaScript functions. By transforming declarative schema definitions into executable code, it eliminates runtime interpretation overhead and provides a secure, efficient way to enforce data integrity across both browser and server environments. The library distinguishes itself through its focus on performance and type safety. It employs advanced compilation techniques, including abstract syntax tree optimization and function caching, to ensure rapid validation. Beyond standard checks, it

gqlgen is a schema-first Go library designed to build type-safe GraphQL servers. It functions as a code generation engine that transforms declarative GraphQL schema definitions into strongly-typed Go source code, ensuring strict alignment between the API contract and the underlying implementation. The framework distinguishes itself through its deep integration with the Go type system and its highly extensible build pipeline. By using schema-first development, it automates the creation of server boilerplate and resolver stubs, allowing developers to map schema fields directly to Go structs and

Protocol Buffers is a language-neutral, platform-agnostic mechanism for serializing structured data. It provides a schema-driven toolchain that compiles declarative data definitions into type-safe source code, enabling consistent communication and strongly typed API contracts across services written in different programming languages. The project distinguishes itself through a highly efficient binary wire format that utilizes tag-based encoding and variable-width integer compression to minimize payload size and processing overhead. It supports robust evolutionary schema management, allowing d

xo is a tool for generating type-safe Go models and query execution code from SQL database schemas and queries. It functions as a multi-dialect SQL tool supporting PostgreSQL, MySQL, SQLite, Oracle, and Microsoft SQL Server to produce idiomatic source code. The project uses a template-based generation system, allowing the structure and logic of the generated database source code to be defined through customizable text templates. It also includes a database schema visualizer that analyzes table relationships and definitions to create visual diagrams and structured documentation. The tool's ca

Kratos is a toolkit for building cloud-native microservices in Go. It provides a comprehensive suite of framework primitives, including a dedicated toolset for API-first development using Protobuf to generate server and client code for gRPC and HTTP. The project is distinguished by its pluggable service infrastructure, which allows for the swapping of configuration stores, service registries, and data encoding formats. It utilizes a composable middleware pipeline to inject cross-cutting concerns such as authentication, request validation, and circuit breaking into the service flow. The frame

Lona is a framework and set of utilities designed to synthesize centralized design definitions into cross-platform UI code, visual artifacts, and motion assets. It functions as a design system generator that converts a single set of specifications into native code for multiple operating systems, Sketch files, and other visual outputs. The system includes a motion design renderer that integrates motion files and renders them into video files to maintain consistent animation experiences. It also features a design artifact exporter for generating localized screenshots and bulk image exports base

jsoncrack.com is a JSON data visualization tool and interactive graph viewer that transforms JSON and other structured data formats into visual tree diagrams. It functions as a data syntax validator and a structured data converter for transforming information between JSON, YAML, XML, and CSV formats. The project includes a JSON schema generator that produces schema definitions and language-specific type definitions based on provided structured data. These capabilities automate type safety and ensure data integrity through schema generation. The tool provides broader capabilities for structur

This project is a Protocol Buffers Go compiler and code generation framework that translates schema definitions into optimized Go structures and reflection-free serialization methods. It includes a gRPC service generator for producing client and server communication code and a serialization performance toolkit for generating automated benchmarks and test suites. The framework features a plugin-based system for transforming data definitions into source code with custom field mapping and struct tag injection. It allows for custom type mapping and struct type overriding to link data fields to sp

System Designer is a visual modeling environment for constructing software architectures, data schemas, and component behaviors. It functions as a low-code platform that allows users to define complex systems through a drag-and-drop interface, representing components and their relationships as interconnected nodes and edges. The platform distinguishes itself by providing a live runtime environment where defined models can be executed and inspected in real-time. It performs dynamic type validation on system operations to ensure consistency and allows for the modular composition of applications