PROTO Formatter
"Zero-latency processing via WebAssembly.
Data never leaves your local environment."
Free Protocol Buffers Formatter
Protocol BuffersFree Protocol Buffers formatter and beautifier tool. Format .proto files online at no cost. No registration required.
LeapOCR
Convert Documents to Markdown & Structured Data with AI-powered OCR
Combine world-class OCR with AI instructions for trusted extractions
Online Protocol Buffer Formatter – Privacy-First, WebAssembly-Powered .proto Beautifier
Tired of mis-aligned field numbers, runaway indents or CI pipelines that reject your .proto pull request? Our free online Protocol Buffer formatter tidies any protobuf schema instantly, right in your browser. Powered by an open-source WebAssembly core, it validates syntax and applies the official Google style guide without ever sending your code to a remote server—perfect for closed-source services or GDPR-sensitive projects. Paste, format, copy, done.
Proto Integrity Checker
Comprehensive validation engine for proto data structures with real-time error detection.
- → Parse Error Detection: Pinpoints exact location of syntax violations.
- → Character Encoding Analysis: Validates proper character encoding compliance.
- → Structure Verification: Ensures proper nesting patterns and syntax compliance.
Capabilities
- 01 Drag-and-drop or paste any .proto source..
- 02 Full syntax validation—catches missing semicolons, reserved ranges, import errors..
- 03 Applies Google protobuf style guide: 2-space indents, aligned field comments, sorted import order..
- 04 Benefit: Zero-latency formatting—see your .proto snap into shape the instant you paste..
- 05 Benefit: No network round-trip; all parsing and re-serialization happens inside your browser tab..