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7Z to ZIP

A 7z is smaller, but not everyone has 7-Zip. Convert it to a ZIP that opens with a double-click on any computer or phone.

By Miikka · CalcBrew · Updated

Runs in your browser — files never leave your device.

Drop 7Z files here

or click to browse · paste from clipboard · up to 2000 MB each

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Why convert 7Z to ZIP

7z compresses better than ZIP, which is why developers and archivists use it, but macOS, iOS and older Windows versions cannot open it natively. Re-packing to ZIP trades a little size for universal compatibility.

Extraction runs in your browser with libarchive (WebAssembly), which handles LZMA/LZMA2 and BZip2 7z archives. Password-protected (AES-encrypted) archives cannot be opened in the browser — extract those with 7-Zip first.

How to convert 7Z to ZIP

  1. Drop 7Z file onto the box above, click it to browse, or paste from the clipboard.
  2. Check the file list; remove anything you added by mistake.
  3. Press Convert. The work happens on your device, so speed depends on your computer or phone.
  4. Download the ZIP — individually or all at once.

About the formats

7Z · 7-Zip archive · .7z

The open archive format of 7-Zip with LZMA compression: usually 30–50 % smaller than ZIP, but needs 7-Zip, Keka or The Unarchiver to open.

  • 7Z uses AES-256 encryption and can encrypt file names too.
  • Solid compression packs similar files together, which is why 7Z beats ZIP on many small files.
  • Windows 11 (23H2) added native 7Z extraction; earlier versions need 7-Zip.

ZIP · ZIP archive · .zip

The universal archive: several files bundled and compressed into one, opened natively on Windows, macOS, iOS and Android.

  • ZIP compresses each file separately, so already-compressed files (JPG, MP4) barely shrink.
  • ZIP supports password protection, but the classic ZipCrypto scheme is weak; AES-256 ZIPs need 7-Zip or WinZip.
  • A ZIP over 4 GB needs the ZIP64 extension, which very old tools do not read.

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Frequently asked questions

Cite this calculator
APACalcBrew. (2026). 7Z to ZIP. https://calcbrew.com/7z-to-zip
MLA“7Z to ZIP.” CalcBrew, 2026, calcbrew.com/7z-to-zip.

Link to https://calcbrew.com/7z-to-zip. Results are estimates; cite the underlying formula or data source for academic work.