7z File Opener
Extract a .7z Archive With No Software
Need to use 7z File Opener right now?
Works with the standard 7z compression format, including folder structure.
Drop an archive file, or click to browse
Processed locally in your browser — never uploaded
Uses a real 7-Zip build compiled to WebAssembly, the same engine behind the desktop 7-Zip app, running entirely in your browser. Password-protected 7Z files aren't supported here.
Features
- Runs entirely in your browser
- Privacy-first — your data is never uploaded
- Real-time, instant results
- 100% free, no sign-up required
- Works on desktop, tablet, and mobile
- No installation needed
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About 7z File Opener
7Z is a popular archive format prized for its strong compression ratio, produced by the 7-Zip application, but it has no native support in Windows Explorer, macOS Finder, or most browsers. This tool extracts a 7Z archive's contents entirely in your browser using a real 7-Zip build (version 24.09) compiled to WebAssembly — the actual 7-Zip engine, not a reimplementation.
Because this runs the genuine 7-Zip codebase, it correctly handles 7Z's LZMA and LZMA2 compression methods (the format's standard, high-ratio compression algorithms) exactly as the desktop application would, with no compatibility gaps.
Every extracted file lists its name and size, and everything bundles into a single ZIP for download — a more universally recognized format than leaving files loose in your downloads folder.
Everything runs locally inside your browser's WebAssembly sandbox — the archive is never uploaded to a server, and extraction happens entirely on your device.
How it works
- Upload your 7Z file. Its contents are extracted automatically.
- Review the file list. See every extracted file's name and size.
- Download all as ZIP. Every extracted file bundled into one download.
Examples
Opening a 7Z archive without 7-Zip installed
Input
archive.7z
Output
every contained file, downloadable as a ZIP