Create, split, merge and inspect ZIP files
directly in your browser
A privacy-first ZIP toolkit that runs entirely on your device. No uploads, no accounts, no waiting on servers. Your files stay where they belong: with you.
The tools you need, instantly
Create ZIP
Turn files and folders into a ZIP archive directly in your browser.
Extract ZIP
Open a ZIP archive, preview its contents, and extract the files you need.
Split ZIP
Split a large ZIP archive into smaller, independently valid ZIP parts.
ZIP Viewer
Inspect the structure and metadata of any ZIP archive without extracting it.
Your files never need to leave your device
Aback ZIP has no backend. The browser is the compute layer: parsing, compression, extraction, splitting, merging, and inspection all run locally.
Local compute
Archive processing runs in your browser with no server-side engine. There is no backend to upload to.
Local storage
Your input files and generated archives live in browser memory only. Nothing is persisted remotely.
No tracking of files
No filenames, paths, contents, hashes, or CRC values are transmitted. Ever.
Aback ZIP vs typical online ZIP tools
Every ZIP utility, one place
Search the catalog or filter by category. Every tool runs locally in your browser.
Create ZIP
Turn files and folders into a ZIP archive directly in your browser.
Extract ZIP
Open a ZIP archive, preview its contents, and extract the files you need.
Split ZIP
Split a large ZIP archive into smaller, independently valid ZIP parts.
Merge ZIP
Combine files from multiple ZIP archives into one clean archive.
Compress ZIP
Rebuild a ZIP archive with optimized compression and see exactly what you saved.
ZIP Viewer
Inspect the structure and metadata of any ZIP archive without extracting it.
Frequently asked questions
Everything you might want to know about how Aback ZIP works.
Are my ZIP files uploaded to a server?
No. All processing happens locally inside your browser. Your files are never sent to an Aback server or any third party.
Do I need an account to use Aback ZIP?
No. Every tool works instantly with no sign-up, no email, and no login.
Does Aback ZIP work on Mac, Windows, and Linux?
Yes. Any modern browser works: Chrome, Firefox, Safari, and Edge, on desktop and mobile.
Can I split a ZIP into smaller parts?
Yes. The Split ZIP tool creates smaller, independently valid ZIP archives from a large one, with configurable part sizes.
Can I extract only selected files?
Yes. The Extract ZIP tool lets you preview archive contents and choose exactly which files to extract.
Can I merge multiple ZIP files?
Yes. The Merge ZIP tool combines several archives into one with automatic handling of duplicate filenames.
Can I compress an existing ZIP?
Yes, with honest expectations. The Compress ZIP tool rebuilds archives with optimized compression and reports real savings.
Does Aback ZIP support encrypted ZIP files?
Password-protected archives are detected and cannot be processed. Aback ZIP does not attempt to crack passwords.
Does Aback ZIP support ZIP64?
ZIP64 archives are detected and their metadata is readable. Very large or extreme archives may be limited by your browser's memory.
Is Aback ZIP free?
Yes. All tools are free, with no limits, no watermarks, and no subscriptions.