Merge two or more separate ZIP archives into a single master .zip package directly in your browser. Automatically resolves filename collisions without uploading data to remote servers.
Select or drop two or more .zip archive files that you wish to consolidate into a single package.
Set your custom output ZIP name in the options panel. The tool will resolve duplicate file names automatically.
Click "Merge ZIPs" to generate the unified package in local memory and save your consolidated archive instantly.
Archive parsing and merging occur entirely within client memory. Your compressed files never touch external servers or third-party cloud storage.
Identical file paths across input archives are automatically assigned numerical suffixes, preventing data loss from unexpected file overwrites.
Combine 2, 5, or 20 ZIP archives simultaneously. The local JSZip engine handles unlimited files bounded only by browser RAM.
Consolidating Multiple Zip Archives into a Master Container: Merging distinct zip archives into a single unified file simplifies asset distribution, project backups, and multi-part data delivery. Instead of extracting files to disk and re-zipping, zip merging reads binary streams to unite file structures efficiently.
Filename Collision & Directory Structure Preservation: When combining separate archives containing identical filenames (e.g. readme.txt), BunchTool resolves collisions by appending numerical suffixes or maintaining subfolder prefix namespaces, avoiding data overwrites.
100% Client-Side Stream Merging Security: Zip archive streams are merged 100% locally in web browser RAM using JSZip WebAssembly scripts. Your source zip files, proprietary backups, and merged archives remain entirely private on your device.
Consolidating Multiple Zip Archives into a Master Container: Merging distinct zip archives into a single unified file simplifies asset distribution, project backups, and multi-part data delivery. Instead of extracting files to disk and re-zipping, zip merging reads binary streams to unite file structures efficiently.
Filename Collision & Directory Structure Preservation: When combining separate archives containing identical filenames (e.g. readme.txt), BunchTool resolves collisions by appending numerical suffixes or maintaining subfolder prefix namespaces, avoiding data overwrites.
100% Client-Side Stream Merging Security: Zip archive streams are merged 100% locally in web browser RAM using JSZip WebAssembly scripts. Your source zip files, proprietary backups, and merged archives remain entirely private on your device.