ProtoGuess

AI-Powered Protobuf Structure Guesser

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Decoded Fields

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ProtoGuess

Welcome! I'm ProtoGuess, your AI assistant for reverse-engineering Protocol Buffer structures.

To get started:

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Example Protobuf Data

Try these real protobuf examples to see how ProtoGuess analyzes binary data. Click "Try It" to load an example into the analyzer.

Simple User

Basic user record with ID, name, email, and status

int32, string, string, bool

Context hint: User management system

Base64: CJYBEgd0ZXN0aW5nGhB0ZXN0QGV4YW1wbGUuY29tIAE=

Hex: 08 96 01 12 07 74 65 73 74 69 6e 67 1a 10 74 65 73 74 40 65 78 61 6d 70 6c 65 2e 63 6f 6d 20 01

API Response

HTTP response with status, message, and key-value data

int32, string, nested[], string

Context hint: REST API or gRPC service

Base64: CMgBEgJPSxoQCgd1c2VyX2lkEgUxMjM0NRoRCgdzZXNzaW9uEgZhYmMxMjMiB3JlcS03ODk=

Hex:

 08 c8 01 12 02 4f 4b 1a 10 0a 07 75 73 65 72 5f 69 64 12 05 31 32 33 34 35 1a 11 0a 07 73 65 73 73 69 6f 6e 12 06 61 62 63 31 32 33 22 07 72 65 71 2d 37 38 39

Product Catalog

E-commerce product with SKU, pricing, and category

string, string, string, int32, int32, enum

Context hint: E-commerce or inventory system

Base64: CgpXSURHRVQtMDAxEgxTdXBlciBXaWRnZXQaEkEgZmFudGFzdGljIHdpZGdldCDPDygyMAE=

Hex:

 0a 0a 57 49 44 47 45 54 2d 30 30 31 12 0c 53 75 70 65 72 20 57 69 64 67 65 74 1a 12 41 20 66 61 6e 74 61 73 74 69 63 20 77 69 64 67 65 74 20 cf 0f 28 32 30 01

Game Event

Player event with position, timestamp, and metadata

int64, int32, enum, nested(floats), int64, map

Context hint: Gaming or real-time multiplayer

Base64: CImv5NwDECoYAyIPDQAA90IVAAA1wh0AAIZCKIDQlf+8MTIKCgVsZXZlbBIBNTIPCgZ3ZWFwb24SBXN3b3Jk

Hex:

 08 89 af e4 dc 03 10 2a 18 03 22 0f 0d 00 00 f7 42 15 00 00 35 c2 1d 00 00 86 42 28 80 d0 95 ff bc 31 32 0a 0a 05 6c 65 76 65 6c 12 01 35 32 0f 0a 06 77 65 61 70 6f 6e 12 05 73 77 6f 72 64

Sensor Reading

IoT sensor data with temperature, humidity, and GPS

string, int64, float, float, float, float, nested(doubles)

Context hint: IoT or environmental monitoring

Base64: CghURU1QLTAwMRCA4s+qBh0AALxBJc3MNEItAFB9RDWamVk/OhcJ0NVW7C/jQkARUPwYc9eaXsAdAAAoQQ==

Hex:

 0a 08 54 45 4d 50 2d 30 30 31 10 80 e2 cf aa 06 1d 00 00 bc 41 25 cd cc 34 42 2d 00 50 7d 44 35 9a 99 59 3f 3a 17 09 d0 d5 56 ec 2f e3 42 40 11 50 fc 18 73 d7 9a 5e c0 1d 00 00 28 41

Data Packet

Binary protocol packet with payload, checksum, and flags

int32, int32, bytes, fixed32, enum[], string, string

Context hint: Network protocol or messaging system

Base64: CAEQuWAaCgABAgMEBQYHCAkl776t3ioCAQIyBm5vZGUtQToGbm9kZS1C

Hex:

 08 01 10 b9 60 1a 0a 00 01 02 03 04 05 06 07 08 09 25 ef be ad de 2a 02 01 02 32 06 6e 6f 64 65 2d 41 3a 06 6e 6f 64 65 2d 42