ZIP Merger - Combine Multiple ZIP Files

Merge multiple ZIP archives into one. Upload ZIP files, preview contents, handle duplicates with rename/skip/overwrite options, download the combined archive.

Drop ZIP files here or click to browse

Security: Only process files from sources you trust. All processing happens locally in your browser.

Frequently Asked Questions

No, all processing happens entirely in your browser using JavaScript. Your files never leave your computer, providing complete privacy and security for sensitive archives.

There's no hard limit, but performance depends on your browser and available memory. Most modern browsers can handle merging dozens of ZIP files containing thousands of files.

You can choose from three strategies: Rename adds a suffix to make each file unique, Skip keeps only the first occurrence, or Overwrite keeps only the last occurrence.

Yes, by default the 'Preserve folder structure' option is enabled, maintaining the internal directory hierarchy from each ZIP file. You can disable this to flatten all files.

Yes, after uploading, you can expand each ZIP file in the list to view its complete contents, including folder structure and file sizes.

The limit depends on your browser's memory capacity. Modern browsers can typically handle merged archives up to several gigabytes.

No, this tool currently does not support password-protected or encrypted ZIP archives. All ZIP files must be unencrypted to be merged.

Currently, the tool merges entire ZIP files. To exclude specific files, you'll need to edit the source ZIP archives first to remove unwanted files.

The merged archive uses DEFLATE compression, which provides a good balance between file size and processing speed. Files are re-compressed during the merge process.

Yes, enter your preferred filename in the 'Output Filename' field before merging. The .zip extension is added automatically.

ZIP Merger - Combine Multiple ZIP Files

Uploaded ZIP Files (0)

Merge Options

Merged Archive Preview