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AGE-INSPECT(1)		     General Commands Manual		  AGE-INSPECT(1)

NAME
     age-inspect - inspect age(1) encrypted files

SYNOPSIS
     age-inspect [--json] [INPUT]

DESCRIPTION
     age-inspect  reads  an age(1) encrypted file from INPUT (or standard input)
     and displays metadata about it without decrypting.

     This includes the recipient types, whether it uses post-quantum encryption,
     and a size breakdown of the file components.

OPTIONS
     --json
	    Output machine-readable JSON instead of human-readable text.

     --version
	    Print the version and exit.

JSON FORMAT
     When --json is specified, the output is a JSON object with these fields:

     O	 version: The age format version (e.g., "age-encryption.org/v1").

     O	 postquantum: Whether the  file  uses  post-quantum  encryption:  "yes",
	 "no", or "unknown".

     O	 armor: Boolean indicating whether the file is ASCII-armored.

     O	 stanza_types:	Array of recipient stanza type strings (e.g., ["X25519"]
	 or ["mlkem768x25519"]).

     O	 sizes: Object containing size information in bytes:

     O	 header: Size of the age header.

     O	 armor: Armor encoding overhead (0 if not armored).

     O	 overhead: Stream encryption overhead.

     O	 min_payload, max_payload: Payload size bounds (currently always  match-
	 ing).

     O	 min_padding, max_padding: Padding size bounds (currently always 0).

     The fields add up to the total size of the file.

EXAMPLES
     Inspect an encrypted file:

	 $ age-inspect secrets.age
	 secrets.age is an age file, version "age-encryption.org/v1".

	 This file is encrypted to the following recipient types:
	 - "mlkem768x25519"

	 This file uses post-quantum encryption.

	 Size breakdown (assuming it decrypts successfully):

	     Header			 1627 bytes
	     Encryption overhead	   32 bytes
	     Payload			   42 bytes
				 -------------------
	     Total			 1701 bytes

	 Tip: for machine-readable output, use --json.

     Get JSON output for scripting:

	 $ age-inspect --json secrets.age
	 {
	     "version": "age-encryption.org/v1",
	     "postquantum": "yes",
	     "armor": false,
	     "stanza_types": [
		 "mlkem768x25519"
	     ],
	     "sizes": {
		 "header": 1627,
		 "armor": 0,
		 "overhead": 32,
		 "min_payload": 42,
		 "max_payload": 42,
		 "min_padding": 0,
		 "max_padding": 0
	     }
	 }

SEE ALSO
     age(1), age-keygen(1)

AUTHORS
     Filippo Valsorda age@filippo.io

				  December 2025 		  AGE-INSPECT(1)

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