Master File Permissions on Your Mac, iPhone, and iPad
Professional chmod calculator and security scanner. Works with your local Mac files and remote Linux servers. Built for Mac users, DevOps engineers, sysadmins, and developers.
📱 Scan to download on iPhone or iPad
Experience Chmod Toolkit on iPhone, iPad, and Mac
From quick chmod calculations to comprehensive security audits for your local Mac files and remote Linux servers, all in one professional toolkit
Interactive permission calculator with real-time numeric and symbolic conversion. Toggle between File and Directory modes for context-appropriate explanations.
Comprehensive permission analysis covering 24 security categories. Detect unsafe permissions, SSH keys, credentials, and configuration issues.
Searchable handbook with 20+ sections covering the 4+2+1 system, symbolic notation, user groups, and security best practices. Perfect for students and professionals alike.
108 questions across 5 types with XP, levels, streaks, and spaced repetition. Track your progress with stats and achievements. Master permissions through practice.
Automatically generated chmod commands to fix security issues. Copy individual fixes or generate batch scripts for multiple files.
Paste terminal error messages and get instant fix recommendations. Recognizes 30+ common permission error patterns across Linux and macOS.
Compare two permission sets side by side with a visual green/red grid. Instantly see what changed between current and target permissions.
Save frequently used permission sets for one-tap recall. Full 4-digit support with setuid, setgid, and sticky bit toggles.
Export scan results to CSV for professional audit reports. Perfect for compliance documentation and team collaboration.
Home screen and lock screen widgets for quick permission reference. Siri Shortcuts, Spotlight search, and Control Center integration.
Scan your local Mac folders and files directly. Full desktop support with keyboard shortcuts, drag-and-drop, context menus, and native folder picker. Works with your Mac's file system.
Whether you're managing local Mac permissions, auditing remote Linux servers, or learning Unix fundamentals, Chmod Toolkit has you covered
Manage permissions on your local Mac files and folders. Scan Documents, Downloads, or any folder directly. Calculate chmod values for scripts, development projects, and system files. Works natively with macOS.
Audit Linux server permissions via SSH. Paste terminal output from Ubuntu, CentOS, or any Unix-like system. Import files or use OCR to scan screenshots. Generate fix scripts for rapid remediation.
Security audits, compliance reporting, and permission troubleshooting for both Mac and Linux systems. Export CSV reports for PCI DSS, SOC 2, and audit documentation.
Detect permission vulnerabilities based on OWASP, CIS Benchmarks, and NIST 800-53. Comprehensive checks for SSH keys, credentials, and sensitive files on Mac and Linux.
Learn Unix permissions interactively. Understand the numeric system (4+2+1), practice with real examples on your Mac, and master security concepts for your coursework.
Buy once, use everywhere. Seamlessly syncs your Pro unlock across all your Apple devices.
iOS 17.0+
iPadOS 17.0+
macOS 14.0+
"Finally, a chmod tool that actually teaches you while you work. The security scanner caught issues I didn't even know to look for."
DevOps Engineer
"The Mac Catalyst version is incredible. Drag-and-drop folder scanning saved me hours during our compliance audit."
System Administrator
"As a CS student, this app made Unix permissions finally click. The visual calculator and examples are brilliant."
Computer Science Student
Your file permissions and scan results never leave your device. No data collection, no tracking, no cloud storage. Everything happens locally.
All calculations, scanning, and OCR happen entirely on your device. No internet connection required.
We don't collect, store, or transmit any of your data. No analytics, no tracking, no servers.
Automatic dark mode support. Easy on your eyes during late-night server maintenance.