proto proto proto
System Status: Active

PROTO Formatter

Formatter Engine Ready

"Zero-latency processing via WebAssembly.
Data never leaves your local environment."

Protocol Buffers Beautifier

Protocol Buffers

Protocol Buffers beautifier to format and pretty print your .proto files. Transform compact proto into readable format.

PROTO__SOURCE
STATUS: CHECKING
Code validation status: CHECKING
Editor currently loaded with proto language support.
New
Introducing 22% OFF - Limited Time - Code: OFF22

LeapOCR

Convert Documents to Markdown & Structured Data with AI-powered OCR

01
Invoice Extraction
02
Handwriting Recognition

Combine world-class OCR with AI instructions for trusted extractions

$ leapOCR activate --intelligence --scale --trust
Spec Sheet // 001

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..

Troubleshoot