Extract ZIP Files Online
Open ZIP, RAR, 7z, and TAR files directly in your browser without installing any software. Your files never leave your device.
Preview PDFs, images, and text files inline. Create new ZIP files with optional encryption. Works completely offline after the page loads.
How to Extract & Create ZIP Files with WC ZIP
Extract Files from a ZIP
Click "Open ZIP From Computer" or drag and drop any ZIP, RAR, 7z, or TAR file directly onto the page.
For password-protected ZIPs, you'll be prompted to enter the password. This stays on your device and is never transmitted.
View all files inside the ZIP. Click any PDF, image, or text file to preview it inline without extracting.
Select specific files to download, or use "Download All" to extract everything to your computer.
Create a New ZIP File
Click "Create New ZIP" to open the ZIP creator interface.
Drag and drop files into the creator, or click to browse and select files from your computer.
Enable AES-256 encryption and set a strong password to protect sensitive files before creating the ZIP.
Click "Create ZIP" to generate your file. It downloads directly to your computer and is never uploaded anywhere.
Privacy Note: All processing happens in your browser. Your files are never uploaded to any server and stay completely private on your device.
How WC ZIP Keeps Your Files Private
WC ZIP is built with privacy at its core. As a pure JavaScript application, it processes all ZIP files directly in your web browser with no server required. This means your sensitive documents, photos, and files remain completely private.
Zero Server Uploads
Unlike other online extractors, WC ZIP never uploads your files to a remote server. Everything runs locally in your browser using JavaScript.
Client-Side Processing
ZIP extraction and compression happen entirely on your computer. Your CPU does the work, keeping your data private and secure.
Secure Password Handling
When you enter a password for protected ZIP files, it stays on your device. Passwords are never transmitted over the network.
Works Offline
Once the page loads, WC ZIP functions completely offline. Extract and create ZIP files without any internet connection.
Inline File Previews
Preview PDFs, images, and text files directly without extracting them first. See what's inside before downloading.
Supported Formats
| ZIP | Standard format with Deflate compression | RAR | Roshal Archive with high compression |
| GZIP (.gz) | Single-file compression, often paired with TAR | TAR | Unix tape format for bundling files |
| 7z | 7-Zip format using LZMA/LZMA2 algorithms | BZIP2 (.bz2) | Block-sorting compression algorithm |
| XZ (.xz) | High-ratio compression using LZMA2 | LZIP (.lz) | LZMA-based format for Unix systems |
Understanding Archive Files: ZIP, RAR, 7z & More
Archive files bundle multiple documents, images, or folders into a single compressed package. This compression reduces file size and simplifies sharing. Instead of attaching dozens of files to an email, you send one compact archive. The recipient then extracts the contents using a tool like WC ZIP.
Compression technology has been essential since the early days of computing when storage and bandwidth were expensive. Today, with cloud storage and fast internet, archives remain invaluable for organizing backups, distributing software, and transferring large file collections efficiently.
Archives are ubiquitous across cloud platforms including Google Drive, Dropbox, and OneDrive. Email services frequently deliver attachments as ZIP files, making browser-based extraction tools essential for modern workflows.
Common Uses for Archive Files
From healthcare to education, archives streamline document handling across industries:
- Insurance professionals bundle policy documents, claims, and supporting materials for clients.
- Real estate agents compile contracts, disclosures, and inspection reports for transactions.
- Legal teams organize case files, evidence, and correspondence into secure packages.
- Students submit coursework containing reports, presentations, and source files together.
- Accountants prepare tax returns with supporting documents in encrypted archives.
Archives accommodate virtually any file type: PDFs, spreadsheets, photos, videos, and Office documents including Word (.DOCX), Excel (.XLSX), and PowerPoint (.PPTX).
Creating and Opening Archives
Operating systems include basic archive support, though browser tools like WC ZIP offer broader format compatibility:
- Windows: Right-click selected files in Explorer and choose "Send to → Compressed (zipped) Folder."
- macOS: Right-click files in Finder and select "Compress [filename]."
- Chrome OS: Select files in the Files app and click "Zip selection."
- WC ZIP: Click "Create New ZIP Archive" and add files through drag-and-drop or file picker.
Extracting archives on desktop systems typically involves double-clicking the file. For formats beyond ZIP (like RAR, 7z, or TAR), WC ZIP provides instant browser-based extraction without additional software.
Password Protection and Encryption
Sensitive files benefit from password-protected archives. Modern ZIP encryption uses AES (Advanced Encryption Standard), providing bank-grade security. This supersedes the older ZipCrypto method, which remains common but offers weaker protection.
WC ZIP handles both encryption standards: it opens legacy ZipCrypto archives and creates new files with robust AES-256 encryption. RAR and 7z formats also support strong encryption for confidential materials.
Archive Format Guide: ZIP vs RAR vs 7z
Three archive formats dominate modern computing: ZIP (most universal), RAR (strong compression), and 7z (open-source efficiency). Each serves different needs, and WC ZIP extracts all three directly in your browser.
ZIP Format
The ZIP file format combines archiving (bundling files) with compression (reducing size) in one package. Its universal compatibility across Windows, macOS, Linux, and mobile platforms makes it the default choice for most users.
Introduced in 1989, ZIP uses the Deflate compression algorithm by default. The specification has evolved to support larger files, Unicode filenames, and strong encryption. WC ZIP creates standard-compliant archives that open on any platform.
RAR Format
The RAR file format (Roshal Archive, named after developer Eugene Roshal) achieves better compression ratios than ZIP for many file types. It excels at compressing large media files and software distributions.
Creating RAR archives requires WinRAR (proprietary software), but extracting them is freely available, including through WC ZIP. The format supports solid compression, recovery records, and multi-volume spanning. Technical details are available at the Library of Congress.
7-Zip (7z) Format
The 7z file format emerged in 1999 as part of the open-source 7-Zip project. Its LZMA and LZMA2 compression algorithms often outperform both ZIP and RAR, producing smaller files at the cost of longer compression times.
Being fully open-source and well-documented, 7z has gained significant adoption in technical communities. The format supports solid compression, AES-256 encryption, and large file handling. WC ZIP extracts 7z archives instantly in your browser.
Unix Formats: TAR, GZIP, BZIP2, XZ, and LZIP
TAR (Tape Archive) bundles files without compression, a design originating from backup tape systems. To reduce size, TAR pairs with dedicated compression tools:
- GZIP (.tar.gz): Fast compression using Deflate algorithm
- BZIP2 (.tar.bz2): Better ratios via block-sorting compression
- XZ (.tar.xz): Excellent compression using LZMA2
- LZIP (.tar.lz): LZMA-based format popular on Unix systems
These formats are standard in software distribution, particularly for Linux packages and source code. WC ZIP handles TAR and all its compressed variants, eliminating the need for command-line tools.