ZIP Creator Create ZIP archives from multiple files directly in your browser using JSZip.

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ZIP Create

Create ZIP archives from multiple files directly in your browser using JSZip.

Add files

Drop files or click to browse. Add as many files as needed.

Set archive name

Optionally customize the ZIP file name.

Create and download

Click Create ZIP to generate and download the archive.

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What Is ZIP Create?

ZIP Creator lets you create ZIP archives from multiple files directly in your browser. Using the JSZip library, files are compressed with DEFLATE compression and packaged into a standard ZIP file. You can add files by drag-and-drop or file picker, remove individual files, customize the archive name, and see total file sizes. Everything happens client-side — your files never leave your device, making it safe for sensitive documents.

Why Use ZIP Create?

Create ZIP files without installing any software.
DEFLATE compression for smaller file sizes.
Drag-and-drop file adding with file size display.
Complete privacy — files stay in your browser.

Common Use Cases

File Sharing

Combine multiple files into a single ZIP for easy sharing via email or file transfer.

Backup

Create quick compressed backups of important files.

Web Development

Package web assets (HTML, CSS, JS) into a ZIP for deployment.

Document Bundling

Bundle related documents into a single downloadable archive.

Technical Guide

ZIP creation is handled by the JSZip library, which generates standard ZIP archives with DEFLATE compression. Files are read as ArrayBuffers using the FileReader API and added to the JSZip instance.

Compression uses DEFLATE level 6 (balanced speed/compression ratio). The ZIP file is generated asynchronously and downloaded as a Blob.

The tool tracks file metadata (name, size) for the file list display. Individual files can be removed before creating the archive. The total uncompressed size is shown for reference.

Note: Maximum practical file size depends on browser memory. Most browsers handle archives up to several hundred MB.

Tips & Best Practices

1
Drag and drop multiple files at once for faster adding.
2
The total uncompressed file size is shown — compressed ZIP will be smaller.
3
Remove individual files from the list if you accidentally added wrong files.
4
Very large files may take longer to compress in the browser.

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Frequently Asked Questions

Q Is there a file size limit?

No hard limit. Practical limit depends on browser memory — typically a few hundred MB total.

Q What compression is used?

DEFLATE compression at level 6 (balanced speed and compression ratio).

Q Can I add folders?

Currently, individual files are added. Folder structure is not preserved.

Q Are files uploaded to a server?

No, all processing happens in your browser. Files never leave your device.

Q Can I password-protect the ZIP?

Password protection is not supported in the current version.

About This Tool

ZIP Create is a free online tool by FreeToolkit.ai. All processing happens directly in your browser — your data never leaves your device. No registration or installation required.