File Merger
Merge files and folders. Clean, safe, instant.
A sandboxed macOS utility with two modes — merge multiple files (text, images, PDFs) into one output, or merge the contents of multiple folders with configurable conflict resolution and structure preservation.
- Requirements
- macOS 14 or later
- Privacy
- 100% offline. No network requests, no analytics, no telemetry.
What it does
File Merge
Merge text, CSV, JSON, HTML, RTF, PNG, JPG, and PDF files into a single output.
Folder Merge
Batch-merge folder contents with full directory structure preservation.
Conflict Resolution
Handle duplicate files your way — skip, rename, or overwrite on conflict.
Smart Validation
Magic-byte file type validation: content-based detection, not just extensions.
Security
Built-in protection against path traversal and symlink injection attacks.
Atomic Writes
File integrity is guaranteed. Cancellation is supported at any point.