Clone this repo:
  1. 1cb1c4b fix using null string in vector (#7872) by phenixxy · 17 minutes ago main upstream/master
  2. 50cdf92 Add `flatbuffers-64` branch to CI for pushes by Derek Bailey · 8 days ago
  3. 9a7fb4d made changes to the rust docs so they would compile. new_with_capacity is deprecated should use with_capacity, get_root_as_monster should be root_as_monster (#7871) by Jeffrey Smith · 8 days ago
  4. 3cb27fa Adding comment for code clarification (#7856) by SmashedFrenzy16 · 9 days ago
  5. d3d7e2e ToCamelCase() when kLowerCamel now converts first char to lower. (#7838) by Paulo Pinheiro · 9 days ago

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.

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++ -
  3. C# -
  4. Dart -
  5. Go -
  6. Java - Maven
  7. JavaScript - NPM
  8. Kotlin
  9. Lobster
  10. Lua
  11. PHP
  12. Python - PyPi
  13. Rust -
  14. Swift - swiftpackageindex
  15. TypeScript - NPM
  16. Nim


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


To contribute to this project, see CONTRIBUTING.



Please see our Security Policy for reporting vulnerabilities.


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