Extract a 7z archive into its files locally - no upload, right in your browser.
Running locally on your device ...
Running locally on your device ...
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Your files never left your device
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
7z (.7z) is 7-Zip's native archive format and typically uses the LZMA or LZMA2 algorithm, which often yields noticeably smaller files than ZIP for the same content. The format is common for software downloads, game mods and backups because it pairs high compression with an open specification.
Extraction runs locally via libarchive, a proven C library compiled to WebAssembly that runs directly in your browser - your archive never leaves the device and the conversion works offline too. 7z archives can be AES-256 password protected; this local extractor cannot open such an encrypted archive and reports that honestly as an error instead of faking a wrong output.
Typical case: a downloaded software package, a mod or a backup arrives as .7z, but there is no program installed to open it. Here you pull the contained files out directly, individually or bundled as a ZIP for further use, with no archive manager to install.
| Input formats | 7Z |
|---|---|
| Output format | ZIP |
| Batch processing | No |
| Processing | Locally in your browser (WebAssembly) |
| File upload | None |
Limitations: Password-protected (encrypted) 7z archives cannot be extracted. Folder structure is flattened on download (file names only). Heavily nested (solid) archives and very large files need correspondingly more time and memory.
No. The 7z archive is extracted entirely locally in the browser.
No, this extractor cannot open encrypted archives.
7z typically uses LZMA/LZMA2, a stronger compression algorithm than the Deflate method common in ZIP.
Use "All as ZIP" to get the extracted files bundled.