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https://github.com/protocolbuffers/protobuf

Protocol Buffers - Google's data interchange format
https://github.com/protocolbuffers/protobuf

marshalling protobuf protobuf-runtime protoc protocol-buffers protocol-compiler rpc serialization

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Protocol Buffers - Google's data interchange format

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README 

        
Protocol Buffers - Google's data interchange format

===================================================



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Copyright 2023 Google LLC



Overview

--------



Protocol Buffers (a.k.a., protobuf) are Google's language-neutral,

platform-neutral, extensible mechanism for serializing structured data. You

can learn more about it in [protobuf's documentation](https://protobuf.dev).



This README file contains protobuf installation instructions. To install

protobuf, you need to install the protocol compiler (used to compile .proto

files) and the protobuf runtime for your chosen programming language.



Protobuf Compiler Installation

------------------------------



The protobuf compiler is written in C++. If you are using C++, please follow

the [C++ Installation Instructions](src/README.md) to install protoc along

with the C++ runtime.



For non-C++ users, the simplest way to install the protocol compiler is to

download a pre-built binary from our [GitHub release page](https://github.com/protocolbuffers/protobuf/releases).



In the downloads section of each release, you can find pre-built binaries in

zip packages: `protoc-$VERSION-$PLATFORM.zip`. It contains the protoc binary

as well as a set of standard `.proto` files distributed along with protobuf.



If you are looking for an old version that is not available in the release

page, check out the [Maven repository](https://repo1.maven.org/maven2/com/google/protobuf/protoc/).



These pre-built binaries are only provided for released versions. If you want

to use the github main version at HEAD, or you need to modify protobuf code,

or you are using C++, it's recommended to build your own protoc binary from

source.



If you would like to build protoc binary from source, see the [C++ Installation Instructions](src/README.md).



Protobuf Runtime Installation

-----------------------------



Protobuf supports several different programming languages. For each programming

language, you can find instructions in the corresponding source directory about

how to install protobuf runtime for that specific language:



| Language                             | Source                                                      |

|--------------------------------------|-------------------------------------------------------------|

| C++ (include C++ runtime and protoc) | [src](src)                                                  |

| Java                                 | [java](java)                                                |

| Python                               | [python](python)                                            |

| Objective-C                          | [objectivec](objectivec)                                    |

| C#                                   | [csharp](csharp)                                            |

| Ruby                                 | [ruby](ruby)                                                |

| Go                                   | [protocolbuffers/protobuf-go](https://github.com/protocolbuffers/protobuf-go)|

| PHP                                  | [php](php)                                                  |

| Dart                                 | [dart-lang/protobuf](https://github.com/dart-lang/protobuf) |

| JavaScript                           | [protocolbuffers/protobuf-javascript](https://github.com/protocolbuffers/protobuf-javascript)|



Quick Start

-----------



The best way to learn how to use protobuf is to follow the [tutorials in our

developer guide](https://protobuf.dev/getting-started).



If you want to learn from code examples, take a look at the examples in the

[examples](examples) directory.



Documentation

-------------



The complete documentation is available at the [Protocol Buffers doc site](https://protobuf.dev).



Support Policy

--------------



Read about our [version support policy](https://protobuf.dev/version-support/)

to stay current on support timeframes for the language libraries.



Developer Community

-------------------



To be alerted to upcoming changes in Protocol Buffers and connect with protobuf developers and users,

[join the Google Group](https://groups.google.com/g/protobuf).