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TorsteinTenstadNorsonic 35230bd70c
[C#] Fix union verifier (#8593)
* [C#] Add test verifying unions

* [C#] Fix verifying unions

---------

Co-authored-by: Björn Harrtell <bjornharrtell@users.noreply.github.com>
Co-authored-by: Wouter van Oortmerssen <aardappel@gmail.com>
2025-08-28 16:05:42 -07:00
.bazelci Adds swift 6 to the build matrix (#8414) 2025-02-04 09:11:46 -08:00
.github Fixes swift windows CI (#8685) 2025-08-27 23:49:50 -07:00
android FlatBuffers Version 25.2.10 2025-02-10 20:25:03 -08:00
bazel
benchmarks [Swift] Adds new API to reduce memory copying within swift (#8484) 2025-03-18 07:48:39 +01:00
CMake FlatBuffers Version 25.2.10 2025-02-10 20:25:03 -08:00
conan
dart FlatBuffers Version 25.2.10 2025-02-10 20:25:03 -08:00
docs Add Rust reflection documentation (#8536) 2025-08-08 10:18:17 -07:00
examples/go-echo
go fix(go/grpc): avoid panic on short FlatBuffers input (#8684) 2025-08-28 00:31:57 -07:00
goldens Support Rust edition 2024 (#8638) 2025-07-25 23:12:52 +00:00
grpc gRPC callbackService support added (#8666) 2025-08-28 15:49:27 -07:00
include gRPC callbackService support added (#8666) 2025-08-28 15:49:27 -07:00
java FlatBuffers Version 25.2.10 2025-02-10 20:25:03 -08:00
js
kotlin Update libs.versions.toml (#8387) 2024-09-06 01:26:51 +00:00
lobster
lua
mjs
net/FlatBuffers [C#] Fix union verifier (#8593) 2025-08-28 16:05:42 -07:00
nim
php
python FlatBuffers Version 25.2.10 2025-02-10 20:25:03 -08:00
reflection Fix npm bzlmod (#8506) 2025-01-23 21:01:31 +00:00
rust FlatBuffers Version 25.2.10 2025-02-10 20:25:03 -08:00
samples Support Rust edition 2024 (#8638) 2025-07-25 23:12:52 +00:00
scripts gRPC callbackService support added (#8666) 2025-08-28 15:49:27 -07:00
snap
src gRPC callbackService support added (#8666) 2025-08-28 15:49:27 -07:00
swift Fixes misaligned pointer by reading from the buffer instead of loading the memory separately (#8649) 2025-07-29 21:26:30 +00:00
tests [C#] Fix union verifier (#8593) 2025-08-28 16:05:42 -07:00
ts Rust reflection: simplify dependencies, fix Android build compatibility (#8512) 2025-02-04 08:40:31 -08:00
.bazelignore Test external modules explicitly in CI (#8507) 2025-01-23 23:04:06 +00:00
.bazelrc Bump the versions of all aspect Bazel dependencies (#8508) 2025-01-24 10:09:22 -08:00
.clang-format
.clang-tidy
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.gitattributes
.gitignore Add support for Bzlmod (#8494) 2025-01-21 16:53:46 -08:00
.npmrc
BUILD.bazel Remove Bazel WORKSPACE setup. (#8509) 2025-01-24 18:16:10 +00:00
build_defs.bzl Remove Bazel WORKSPACE setup. (#8509) 2025-01-24 18:16:10 +00:00
CHANGELOG.md gRPC callbackService support added (#8666) 2025-08-28 15:49:27 -07:00
CMakeLists.txt gRPC callbackService support added (#8666) 2025-08-28 15:49:27 -07:00
composer.json
conanfile.py
CONTRIBUTING.md Support Rust edition 2024 (#8638) 2025-07-25 23:12:52 +00:00
eslint.config.mjs [TS] Upgrade deps (#8620) 2025-06-22 08:59:42 -07:00
extensions.bzl Add support for Bzlmod (#8494) 2025-01-21 16:53:46 -08:00
FlatBuffers.podspec FlatBuffers Version 25.2.10 2025-02-10 20:25:03 -08:00
Formatters.md
LICENSE
MODULE.bazel [TS] Upgrade deps (#8620) 2025-06-22 08:59:42 -07:00
package.json [TS] Upgrade deps (#8620) 2025-06-22 08:59:42 -07:00
Package.swift [Swift] Memory usage fix (#8643) 2025-07-18 09:37:58 -07:00
pnpm-lock.yaml [TS] Upgrade deps (#8620) 2025-06-22 08:59:42 -07:00
README.md Update logo path (#8602) 2025-07-14 16:09:05 -07:00
SECURITY.md
swift.swiftformat [Swift] Flexbuffers native swift port (#8577) 2025-06-22 08:36:38 +02:00
tsconfig.json
tsconfig.mjs.json
typescript.bzl Fix reflection.fbs import path (#8499) 2025-01-23 19:43:23 +00:00

logo FlatBuffers

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FlatBuffers is a cross platform serialization library architected for maximum memory efficiency. It allows you to directly access serialized data without parsing/unpacking it first, while still having great forwards/backwards compatibility.

Quick Start

  1. Build the compiler for flatbuffers (flatc)

    Use cmake to create the build files for your platform and then perform the compilation (Linux example).

    cmake -G "Unix Makefiles"
    make -j
    
  2. Define your flatbuffer schema (.fbs)

    Write the schema to define the data you want to serialize. See monster.fbs for an example.

  3. Generate code for your language(s)

    Use the flatc compiler to take your schema and generate language-specific code:

    ./flatc --cpp --rust monster.fbs
    

    Which generates monster_generated.h and monster_generated.rs files.

  4. Serialize data

    Use the generated code, as well as the FlatBufferBuilder to construct your serialized buffer. (C++ example)

  5. Transmit/store/save Buffer

    Use your serialized buffer however you want. Send it to someone, save it for later, etc...

  6. Read the data

    Use the generated accessors to read the data from the serialized buffer.

    It doesn't need to be the same language/schema version, FlatBuffers ensures the data is readable across languages and schema versions. See the Rust example reading the data written by C++.

Documentation

Go to our landing page to browse our documentation.

Supported operating systems

  • Windows
  • macOS
  • Linux
  • Android
  • And any others with a recent C++ compiler (C++ 11 and newer)

Supported programming languages

Code generation and runtime libraries for many popular languages.

  1. C
  2. C++ - snapcraft.io
  3. C# - nuget.org
  4. Dart - pub.dev
  5. Go - go.dev
  6. Java - Maven
  7. JavaScript - NPM
  8. Kotlin
  9. Lobster
  10. Lua
  11. PHP
  12. Python - PyPI
  13. Rust - crates.io
  14. Swift - swiftpackageindex
  15. TypeScript - NPM
  16. Nim

Versioning

FlatBuffers does not follow traditional SemVer versioning (see rationale) but rather uses a format of the date of the release.

Contribution

To contribute to this project, see CONTRIBUTING.

Community

Security

Please see our Security Policy for reporting vulnerabilities.

Licensing

Flatbuffers is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.