Extract & Compress Files Online 100% In Your Browser

Unpack or create ZIP, RAR, 7Z, TAR, GZ, ISO and more directly in your browser memory. 100% client-side with instant file previews, password decryption, and zero server uploads.

Zero Server Uploads
Instant In-Memory Speed
Formats ZIP, RAR, 7Z, TAR & More

Drag & Drop your archive here

Supports ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, ISO, CAB, WIM, DEB, APK and more

Fast & Simple

How to Extract & Compress Archives Online

Unpack or package your archives in three straightforward steps directly inside your web browser.

1

Select Archive

Drag and drop any ZIP, 7Z, TAR, GZ, or TGZ archive up to 500 MB into the drop zone or browse files from your device.

2

Fast Client-Side Extraction

No uploads, no backend queues. Unpack archives directly in your browser with strict Zip Slip protection and secure on-device password decryption.

3

Inspect & Download

Browse the extracted hierarchical file tree, download individual files, or save the complete bundle in a clean repackaged ZIP.

Compatibility

Supported Compression & Archive Formats

Comprehensive support for major lossless compression algorithms and container types.

Format Extension Compression Efficiency Encryption Best For
ZIP .zip Standard (Deflate) ZipCrypto / AES-256 Universal sharing across Windows, macOS, iOS, Android
7-Zip .7z Very High (LZMA / LZMA2) AES-256 Maximum disk space savings for large datasets & backups
Tarball .tar.gz / .tgz High (Gzip + TAR) Optional (TLS transit) Linux, Unix, software distribution, preserving POSIX permissions
GZIP .gz Moderate to High Optional Single file stream compression & server log archiving
TAR .tar None (Archive Only) N/A Bundling multiple files into a single container without compression
Security & Performance

Why Choose extract.best?

Engineered for speed, strict user privacy, and cross-platform flexibility.

100% Client-Side Privacy

Files and unpacked contents are processed entirely inside your browser memory and never sent to any server. Your sensitive data never leaves your device.

Password-Protected Extraction

Easily extract encrypted ZIP archives protected by passwords without installing proprietary desktop software.

Zero Installation Required

Works seamlessly in any modern web browser across macOS, Windows, Linux, iOS, Chromebooks, and Android.

Knowledge Hub

Featured Guides & Tutorials

In-depth technical guides on encryption, format efficiency, and cross-platform extraction.

Browse All Technical Guides →
FAQ

Frequently Asked Questions

Common questions about online extraction, supported files, and security.

Is extract.best completely free to use?
Yes. extract.best is completely free. There are no subscriptions, registration requirements, or hidden payment tiers. You can extract and compress archives instantly.
Are my files and data kept private and secure?
Absolutely. We take privacy seriously. extract.best processes all archives directly inside your browser memory using WebAssembly. Your files are never uploaded to any server or external infrastructure.
What is the maximum archive file size?
You can process archives and file batches up to 500 MB per extraction or compression request directly in browser memory.
How does in-browser file extraction work?
When you select an archive, extract.best mounts and decompresses the container directly inside your browser memory using WebAssembly. You can preview files instantly, inspect directory structures, decrypt passwords, and download files directly without server uploads.
Can I extract password-protected ZIP archives?
Yes. Before clicking Extract, type your password in the "Archive Password" field. Our engine decrypts standard ZipCrypto and AES-256 encrypted entries securely.
Do I need to install WinRAR or 7-Zip?
No. extract.best operates entirely within your browser, eliminating the need to install third-party desktop archive utilities or browser extensions.