Format reference

PROTO Format Hub

Protocol Buffers (.proto) files define typed message and service contracts for binary and JSON-compatible RPC systems. Use sample proto files to test schema parsing, code generation, and backward-compatibility checks.

Open Sample Page Open Manifest JSON
9 Files
496 Downloads (30d)
application/octet-stream
Related Formats in Data

PROTO Related Formats

SQL (14) YAML (10) ENV (9) GRAPHQL (9) INI (9) JSONL (9) NDJSON (9) TOML (9)
Related Comparisons

PROTO Format Comparisons

Protocol Buffers vs JSON

Compare schema-first .proto contracts against flexible JSON payloads.

Open Comparison
Format Strategy Links

PROTO Format Guides

Open PROTO FAQ

Best Format Guides

Miglior formato dati per le API

Best Format for Use Cases

Miglior formato per i payload di risposta API Best Format for API Payload Debugging at Scale

Conversion Guides

How to Convert JSON to PROTO How to Convert PROTO to JSON How to Convert PROTO to SQL How to Convert SQL to PROTO How to Convert PROTO to YAML How to Convert YAML to PROTO
Implementation Notes

PROTO Implementation Notes

Use the manifest endpoint for deterministic fixture selection in CI, then validate MIME/type detection against actual parser output.

If this format appears in multiple categories, prefer category-specific hub pages to keep test assumptions aligned with real usage.