# AGEX Bundle Diff

Compare two AGEX bundles and highlight metadata or protection-setting differences

> Canonical page: https://elysiatools.com/en/tools/agex-bundle-diff

- **Category:** Security

- **Keywords:** agex, bundle diff, metadata comparison, audit, kdf comparison

## Overview

This tool helps with review and audit work. It shows where two AGEX bundles differ in visible metadata, KDF presets, signer information, and low-level protection inputs such as salt, nonce, or ciphertext changes.

## Inputs

- **Left Bundle File** (file)
- **Right Bundle File** (file)

## When to use

- When auditing security policy changes between two versions of an AGEX bundle.
- When verifying if a redistributed AGEX file has altered KDF parameters or signer signatures.
- When troubleshooting decryption issues by checking if the ciphertext, salt, or nonce has changed.

## How it works

- Upload the original AGEX bundle file as the Left Bundle File.
- Upload the modified or comparison AGEX bundle file as the Right Bundle File.
- Run the comparison to generate a JSON report detailing differences in metadata fields, KDF limits, and cryptographic parameters.

## Use cases

- Auditing KDF parameter changes (e.g., moderate vs. sensitive) between bundle revisions.
- Verifying signer identity and signature integrity across redistributed files.
- Detecting unauthorized modifications to salt, nonce, or ciphertext in a bundle.

## Frequently asked questions

### What file formats does this tool support?

It supports AGEX bundle files, typically in JSON format.

### Can I detect changes in the encryption key settings?

Yes, the tool highlights differences in KDF presets, including opslimit and memlimit.

### Does this tool compare the actual decrypted file contents?

No, it compares the metadata, signer information, and low-level protection inputs of the bundles.

### What low-level cryptographic fields are compared?

It compares differences in salt, nonce, and ciphertext values.

### Is my bundle data uploaded to a public server?

No, the comparison is processed securely to ensure your cryptographic metadata remains private.

## Related tools

- [AGEX Bundle Metadata Redactor](https://elysiatools.com/en/tools/agex-bundle-metadata-redactor): Rewrite exposed AGEX metadata like original filename or signer ID without touching ciphertext bytes
- [AGEX Bundle Inspector](https://elysiatools.com/en/tools/agex-bundle-inspector): Inspect AGEX bundle metadata without decrypting the file contents
- [Age-like Encrypted File Bundle](https://elysiatools.com/en/tools/age-like-encrypted-file-bundle): Encrypt or decrypt portable password-based file bundles with Argon2id, XChaCha20-Poly1305, and optional signatures
- [Media Metadata to JSON](https://elysiatools.com/en/tools/media-metadata-to-json): Extract audio/video metadata as JSON with ffprobe.
- [AGEX Bundle Rewrapper](https://elysiatools.com/en/tools/agex-bundle-rewrapper): Re-encrypt an AGEX bundle with a new passphrase and fresh Argon2id/XChaCha parameters
- [AGEX Secure Share Note](https://elysiatools.com/en/tools/agex-secure-share-note): Generate a plain-language share note for an AGEX bundle so recipients know how to decrypt and verify it safely
- [AGEX Signature Verifier](https://elysiatools.com/en/tools/agex-signature-verifier): Verify the Ed25519 signature attached to an AGEX bundle
- [Batch Podcast Publisher Pack](https://elysiatools.com/en/tools/audio-batch-podcast-publisher-pack): Normalize a batch of podcast episodes, apply metadata and chapters, and package validated delivery files in one ZIP.

## Samples

- [Distributed Tracing Samples](https://elysiatools.com/en/samples/distributed-tracing-samples): Comprehensive distributed tracing examples using Jaeger, OpenTelemetry, and other modern observability tools for microservices architecture
- [AWS EventBridge Samples](https://elysiatools.com/en/samples/eventbridge-samples): AWS EventBridge examples including event buses, rules, targets, schema registry, custom events, and cross-account event routing for serverless event-driven architecture
- [JWT Samples](https://elysiatools.com/en/samples/jwt-samples): Comprehensive JWT examples from basic token structure to advanced security implementations
- [PDF Samples](https://elysiatools.com/en/samples/pdf-samples): Generated PDF samples from tools dated 2026-02-01 to 2026-02-10

## Related content

- [File and Data Diff Comparison Tools](https://elysiatools.com/en/hubs/file-data-diff-comparison-tools): Compare two candidate artifacts, choose the right diff path for the format, review structural or semantic changes, and finish with integrity checks when approval needs byte-level certainty.
- [AGEX Secure File Packaging and Handoff](https://elysiatools.com/en/hubs/agex-secure-file-sharing): Package a file as AGEX, inspect visible metadata, choose passphrase and signature settings, and verify the handoff before delivery.