Free Online Zip & RAR Extractor — Unzip Files in Browser (100% Private)
Unzip & Extract ZIP, RAR, 7Z Archives Offline. Client-side archive decompressor to inspect folder trees, preview text/code/images in-browser, and extract files without WinRAR or 7-Zip.
What is Zip Unpacker and what does it do?
The Zip & Archive Unpacker Engine is a free online archive extractor that opens ZIP, RAR, 7Z, and TAR files directly in your browser — browse the folder tree, preview text, code, and images inside, and extract individual files or everything, without WinRAR or 7-Zip installed.
Decompression runs client-side through WebAssembly, so even confidential compressed archives stay 100% on your machine with zero server upload.
- Open .zip, .rar, .7z, and .tar archives without installing extraction software.
- Browse the full nested folder hierarchy of the archive.
- Preview text files, code, and images inside the archive before extracting.
- Download single files or the entire decompressed archive.
- Keep archive contents private — decompression is fully client-side.
How does Zip Unpacker work?
A WebAssembly decompressor reads the archive's central directory locally, expands compressed file entries into memory, and builds a virtual folder tree you can expand and explore.
Clicking a file either renders a preview (images drawn to canvas, text/code displayed) or serializes the decompressed bytes into a Blob for download. Nothing is sent to a server at any stage.
100% private: all processing happens locally in your browser using client-side WebAssembly, WebCrypto, WebAudio, and HTML5 Canvas. Your files are never uploaded to any server.
Who needs Zip Unpacker?
Anyone on a locked-down computer
Open a ZIP attachment at work or school without permission to install WinRAR or 7-Zip.
Developers
Peek inside release bundles and config archives to check contents before extracting everything.
Privacy-conscious users
Extract confidential documents from archives without handing the files to a cloud unzip service.
Travelers & students
Use any internet café or library computer to unpack project files from a USB drive.
Supported file formats
Zip & Archive Unpacker Engine opens and processes the following file extensions directly in your browser:
.zip.rar.7z.tarHow to use Zip Unpacker — step by step
- 1
Select Archive File
Drop your .zip, .rar, .7z, or .tar archive into the extractor.
- 2
Browse Folder Hierarchy
Expand subdirectories and preview documents, images, and code instantly.
- 3
Extract Individual Files
Download single files or the entire decompressed archive directly to disk.
Frequently asked questions
Do I need WinRAR or 7-Zip installed on my computer?
No! This tool decompresses ZIP, RAR, 7Z, and TAR archives directly inside your browser window.
Are my confidential compressed archives uploaded to any server?
Never. All decompression is handled by client-side WebAssembly algorithms. Your files stay 100% on your machine.
Can I preview files inside the zip without extracting all of them?
Yes! You can view text files, images, and code snippets directly inside the archive browser.
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