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Supports ZIP, RAR, 7Z, TAR, TAR.GZ, TAR.BZ2, TAR.XZ, ISO
This file format is not supported
Supported formats
Supported formats
Unbox supports all major archive formats including ZIP, RAR, 7Z, TAR, TAR.GZ (TGZ), TAR.BZ2, TAR.XZ, and ISO disk images.
Complete privacy
Unlike other online extractors, Unbox never uploads your files to a server. All processing happens locally using WebAssembly technology. You can even disconnect from the internet after loading the page.
Works offline
Once loaded, Unbox works without an internet connection. Perfect for when you need to extract files on the go.
100% free
No limits on file size, no registration, no hidden costs. Unbox is free to use forever.
Handles large files
Using streaming extraction and the File System Access API, Unbox can handle archives up to 1 GB and beyond without running out of memory.
Password-protected archives
Unbox supports opening password-protected ZIP, 7Z, and RAR archives. Your password is never transmitted anywhere.
Frequently asked questions
Yes! Unbox processes everything in your browser using WebAssembly. Your files never leave your device — there's no server involved. You can verify this by checking the network tab in your browser's developer tools.
There's no hard limit. Unbox can handle archives up to 1 GB and beyond. For very large files, we use the File System Access API to stream directly to disk without loading everything into memory.
Yes! Once the page is loaded, you can disconnect from the internet and continue extracting archives. The extraction engine is cached locally.
Unbox is designed for quick, convenient extraction without installing software. For advanced features like creating archives or complex compression settings, desktop tools like 7-Zip are still the way to go.
Unbox works in all modern browsers: Chrome, Firefox, Safari, and Edge. For the best experience with large files, we recommend Chrome or Edge which support the File System Access API.