What is a .FBS file?
FBS defines FlatBuffers data structures, Google’s zero-copy serialisation format.
- Did you know
- FlatBuffers lets programs read data without unpacking it first, prized in games.
- FlatBuffers was written by Wouter van Oortmerssen at Google’s Fun Propulsion Labs, originally for performance-critical game code.
- An .fbs schema is fed to the flatc compiler, which generates reader and writer code for languages from C++ to Rust.
- What Analyser reads
- Identify and read developer and data-serialisation files: dependency lockfiles (npm/Yarn/pnpm/Cargo/Poetry/Bundler/Composer - locked-package count), binary serialisations (MessagePack, CBOR, BSON, raw Protobuf messages and descriptor sets), Python pickles with a security note, NumPy .npz and Java jar/war/ear archives, IDL schemas (FlatBuffers/Thrift/Cap n Proto/HCL), MATLAB MAT-files, Redis RDB dumps and columnar big-data containers (Apache Arrow/Feather, Parquet, ORC). The JSON supersets JSON5/JSONC/Hjson now open in a full viewer - see Notebooks & data above.
- Depth of analysis
- .FBS is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .FBS file
- Drag a .FBS file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.