LIVE macOS 14+

File Merger Merge Everything. Effortlessly.

A secure and powerful macOS utility designed to eliminate the frustration of merging large, scattered file collections into a single, organized folder.

File Merger App Icon

[01] KEY FEATURES

File Merging

  • Merge multiple text files, images, PDFs
  • Secure file selection with macOS bookmarks
  • Content validation via magic byte detection
  • Configurable headers and separators
  • Real-time progress tracking

Folder Merging

  • Batch process multiple source folders
  • Preserve original folder structure
  • Smart conflict resolution (skip, rename, overwrite)
  • Hidden file support
  • Safe path handling

Performance

  • Atomic operations for file integrity
  • Chunked processing for large files
  • Background processing prevents UI freezing
  • Cancellation support anytime
  • Memory-efficient operations

Security First

  • Runs in macOS App Sandbox
  • Path traversal protection
  • Symlink attack prevention
  • File size limits enforcement
  • Comprehensive security logging

[02] TECHNICAL SPECIFICATIONS

System Requirements

Operating System
macOS 14.0 or later
Architecture
Apple Silicon & Intel
Disk Space
~10 MB
Memory
Minimal (50 MB typical)

Supported File Types

Text Files
.txt, .csv, .json, .html, .rtf
Images
.png, .jpg, .jpeg
Documents
.pdf
Validation
Content-based (magic bytes)

Limits & Constraints

Max File Size
100 MB per file
Max Total Size
500 MB per operation
Network Access
None (sandboxed)
System Access
User-selected files only

[03] SECURITY & PRIVACY

File Merger is built with security as a top priority. Following Apple's security best practices, the app operates under strict sandbox restrictions to protect your system and data.

🔒 App Sandboxing

Runs in macOS App Sandbox with minimal privileges. No system file access, no network access, limited to user-selected files only.

🛡️ Attack Prevention

Built-in protection against path traversal, symlink attacks, and malicious file content. All paths validated before processing.

✅ Content Validation

MIME type validation using magic byte detection ensures files are what they claim to be, preventing disguised malware.

📊 Security Logging

Comprehensive logging of security events for audit trails and debugging. All suspicious activity is tracked.

🔐
Sandboxed
macOS App Sandbox
Code Signed
Apple Developer ID
🔍
Validated
Content-Based Detection

[04] GET FILE MERGER

Download for macOS

Works on macOS 14.0 or later. Compatible with Apple Silicon and Intel Macs.

Download on the App Store
Version 1.0 ~8 MB Universal Binary