FlatBuffers Decoder/Encoder

Decode binary FlatBuffers to JSON or encode JSON to binary. Paste your schema and data below.

FlatBuffers Schema (.fbs)

Binary Data

Decoded JSON Output

Decoded data will appear here...

Example Schemas

Monster (Game Entity)

A typical game entity with position, stats, and inventory.

table Monster { hp: int; name: string; }

Message (Protocol)

A simple message format for network protocols.

table Message { id: uint; payload: [ubyte]; }

Config (Settings)

Application configuration with nested structures.

table Config { version: string; settings: Settings; }

Event (Logging)

Event logging schema with timestamps and metadata.

table Event { timestamp: long; level: Level; }

About FlatBuffers

FlatBuffers is an efficient cross-platform serialization library developed by Google. It allows you to access serialized data without parsing/unpacking, making it ideal for games, performance-critical applications, and network protocols.

Supported Types

bool, byte, ubyte, short, ushort - Basic integers
int, uint, long, ulong - 32/64-bit integers
float, double - Floating point numbers
string - UTF-8 strings
[type] - Vectors/arrays
struct, table, enum, union - Composite types

Key Features

Zero-copy deserialization
Schema evolution support
Smaller than Protocol Buffers
No parsing overhead
Cross-platform compatibility
Strong typing with schema validation