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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 in- put) and displays metadata about it without decrypting. This includes the recipient types, whether it uses post-quantum encryp- tion, 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 matching). 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)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | JSON FORMAT | EXAMPLES | SEE ALSO | AUTHORS
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