Bulk Archiver

Zip and unzip in your browser. No upload, no signup.

Up to 8× faster than online ZIP tools.

No upload, no download — your files never leave the device, so there's nothing to wait on but your own CPU.

Zipping 854 MB / 234 filesTime
Bulk Archiver (this page) 16 sec
files2zip 23 sec
ezyzip 36 sec
Archive Extractor 128 sec

End-to-end timing on the same 854 MB / 234-file folder, same machine, same connection — from drop to last byte saved. Online tools upload the data, zip it server-side, then send it back; we skip both legs. The bigger your archive, the larger the gap.

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Connected — privacy mode available

You don't need the internet. Disconnect and watch the tool work.

Online

🔒 Verify the privacy claim yourself

The simplest way to confirm your files never leave this device:

Disconnect from the internet.

Turn off your Wi-Fi → the tool keeps working. The banner up top turns green.

Everything happens on your computer — not on someone else's server. There is no upload step, ever.

🔒 Verify it yourself: turn off your Wi-Fi, drop your files and start zipping. Your files never leave your device.

or drop them here

Create: any files or folders

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Total size0
Archive size
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Why use it

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Files never leave your device

All zipping and unzipping runs in your browser. No upload, no server. Disconnect from Wi-Fi mid-task — the app keeps working.

No file size cap

Drop a 5 GB folder. Drop 10,000 photos. There's no per-file or per-batch cap because we don't pay for bandwidth.

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No signup, no watermark

Free forever. No account. No "click here to remove the watermark". No upsell pop-ups while you wait.

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Works everywhere

Mac, Windows, Linux, iPhone, iPad, Android — any modern browser. Nothing to install.

How we compare

Ours WinZip 7-Zip Online ZIP tools
Files stay on your device✓ Verifiable✓ Desktop only✓ Desktop onlyUploads
FreeUnlimited$29.95/yrFree (Windows)Capped or watermarked
No account / no installSoftware installSoftware installOften signup
No file size capUsually capped
Works on any device, any browserWindows / Mac onlyWindows only
Works offline after page loadNo

Turn off your Wi-Fi. It still works.

That's how you know nothing ever leaves your device.

WinZip's cloud features and every online "free" ZIP tool let your files touch a server at some point. We don't. Run the test yourself.

FAQ

Do you upload my files?

No. All compression and extraction happens in your browser. You can verify by disconnecting from Wi-Fi after the page loads — the app keeps working.

What's the file size limit?

There isn't one. Your browser's memory is the only practical limit. Most desktops handle multi-GB archives without issue; mobile is more limited.

What ZIP format do you create?

Standard PKZIP / ZIP64 — opens with every operating system's built-in archive tool, 7-Zip, WinRAR, etc. We use DEFLATE compression by default.

Can I extract a password-protected ZIP?

Not yet — the current version handles unencrypted ZIPs. Password-protected ZIP support is on the roadmap.

Does this support RAR or 7z?

Not yet. This version supports ZIP only. RAR and 7z extraction is on the roadmap.

Works on every device you use

iOS, Android, macOS, Windows, or any modern browser — same tool, same code, same privacy.

iOS
Android
macOS
Windows
Web