Free Protocol Buffers Formatter

Protocol Buffers

Free Protocol Buffers formatter and beautifier tool. Format .proto files online at no cost. No registration required. It runs in your browser, and your input stays on this device.

Back to Protocol Buffers Formatter

Formatter example

Compare the exact input shape with the cleaned output before opening the editor.

Local preview

Before

input
function proto(){return true}

After

formatted
function proto() {
  return true
}

Workflow

Use Protocol Buffers without sending code.

Paste a snippet, run the action, review any highlighted issue, then copy the result back to your work.

Current language
Protocol Buffers
Current action
Protocol Buffers Formatter
  1. 01

    Start

    Paste a snippet or full file into the editor.

  2. 02

    Run

    Use Run Protocol Buffers Formatter from the action bar.

  3. 03

    Review

    Fix syntax issues if processing stops.

  4. 04

    Move

    Use Copy code when the result is ready.

Files
.proto
Paste a Protocol Buffers snippet or a full source file.
Engine
clang-format
Runs the browser-side formatter for readable output.
Privacy
Local run
The editor does not send pasted code to a formatting API.
Result
Readable output
Move the formatted code back to your editor.