ACL Migration Checker | chilili kobo

Product Overview

"Access rights verification for reliable data migration."

ACL Migration Checker is a dedicated auditing utility that verifies whether access control lists (ACLs) match perfectly between source and destination storage during file server migrations. It provides robust verification not only in Active Directory environments but also in Workgroup scenarios where migrating SIDs is difficult and permissions must be manually reconfigured.

Scan and Save ACLs

Harvests complete ACL metadata from source and destination folders/files and saves it into lightweight, compressed JSON.GZ files.

Automated Difference Comparison

Cross-examines the two datasets to automatically detect missing permissions, excessive privileges, and mismatched accounts or groups.

CSV Export for Audit Reports

Export comparison results to CSV format. Perfect for creating post-migration audit evidence or remediation punch-lists.

Bilingual Interface (EN/JA)

Automatically selects English or Japanese based on the host OS language setting for seamless global operations.

Key Verification Capabilities

Missing Permissions

Unintended Excessive Rights

SID / Account Mismatches

Inheritance Flag Discrepancies

Missing Files or Directories

Owner Mismatches

Primary Use Cases

Auditing file server (NAS / Windows Server) migration completion

Checking share permissions during Active Directory domain consolidations

Verifying re-applied rights in Workgroup environments where SIDs cannot migrate

Generating CSV evidence reports for enterprise IT compliance audits

Screenshots

Click any image to enlarge.

Click to Enlarge

Scan & Save

Specify target directory to scan and save ACL metadata into compressed JSON.GZ.

Click to Enlarge

Comparison & Diff Listing

Load both datasets to automatically detect and color-code discrepancies.

How to Use

Acquire ACLs

Run the tool on both source and destination machines to scan and save ACL files.

Compare Data

Load both saved JSON.GZ datasets into the tool to execute the diff engine.

Review & Export

Inspect detected discrepancies on screen and export to CSV if needed.

Offline comparison ready: No direct network route is required between source and destination servers.

Frequently Asked Questions (FAQ)

Yes. Scanning and comparing are separate operations. You can save scan results on an air-gapped source server, copy the JSON.GZ file via a USB drive to an admin laptop, and perform the comparison completely offline.

Yes, ACL Migration Checker is 100% free for both personal and corporate use. It is widely utilized by system integrators and IT departments during corporate storage migration projects.

Yes. Scan data is compressed with Gzip (.json.gz) to minimize file size and memory footprint, allowing it to efficiently scan and compare large-scale directory trees.

Ensure 100% Access Rights Consistency

No installation required, completely free. Download from GitHub today.

Download on GitHub

Changelog

v26.7.31.2 Jul 31, 2026
Initial launch. Includes ACL scanning & saving, diff comparison engine, and CSV export.

Download

Standard Edition

FREE

Get on GitHub

Freeware (Personal & Commercial)

Redistribution Prohibited

Commercial Use Allowed

Trusted & Featured On

Requirements

OS	Windows 10 / 11
Server	Windows Server 2016+
Runtime	None required (Portable)

Truly portable. Runs directly from USB drives without installation.