ZIP Creator

Create ZIP archives in your browser. Add any files, set a filename, and download the archive instantly. No upload, no install — 100% client-side.

zip create zip archive compress file compressor browser tool
Free Client-Side Private

📦

Drop files here or

Any file type · Max 100 MB per file · 200 files max · Files never leave your browser.

🔒 This tool runs entirely in your browser — your files are never uploaded to any server.

ZIP Creator lets you build a ZIP archive directly in your browser. Select any combination of files, set a filename, and download the compressed archive — no upload required, no software to install.

How to Use ZIP Creator

  1. Drop files onto the upload area or click Browse to select them. You can add more files at any time.
  2. Review the file list. Click the × button on any row to remove a file.
  3. Enter a name for your archive in the Filename field.
  4. Click Create & Download ZIP to compress and save the archive.

Browser Safety Limits

The tool enforces limits to keep your browser responsive during compression:

Limit Value
Max files per archive 200
Max size per file 100 MB
Max total queue size 300 MB

Files that exceed a limit are skipped automatically and a notice is shown. For archives larger than 300 MB, use a desktop app such as 7-Zip or WinZip.

Duplicate files (same name and same size) are detected and not added twice.

How Compression Works

Files are compressed using the Deflate algorithm at level 6, which balances speed and output size well for general use. Already-compressed file types such as .jpg, .mp4, .mp3, and .pdf will not shrink significantly — their size inside the ZIP may be nearly identical to the original. Text-based formats like .txt, .html, .css, .js, .csv, and .log typically compress very well.

Privacy

All processing runs entirely in your browser. Files are never sent to any server. The ZIP archive is generated locally using the open-source JSZip library.

Frequently Asked Questions

Can I add entire folders?

Browser security restrictions prevent selecting entire folders in most browsers. You can drag files from inside a folder individually, or use your operating system to compress a full folder with its built-in archive tool.

What happens if two files have the same name?

The tool skips exact duplicates (same name and same file size) automatically. If you need two files with the same name from different locations, rename one before adding it.

Why is my ZIP not smaller than the original files?

ZIP compression is most effective on text-based files. Images, videos, and audio files are already stored in compressed formats, so they will not reduce in size significantly when placed inside a ZIP.

Is there a password-protect option?

Password-protected ZIP creation is not supported in the browser. For encrypted archives, use a desktop tool such as 7-Zip or WinRAR.

Can I create a ZIP from a single file?

Yes. You can add just one file and create a ZIP from it. The download will contain that single file inside the archive.

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