Convert 7Z to ZIP online
Drop a .7z and download a standard .zip — decoded and re-packed entirely in your browser, no 7-Zip, no upload.
Drop your .7z anywhere on this page
The 7z is decoded in your browser via WebAssembly and repacked as a ZIP locally — nothing is uploaded.
Converting a .7z to a .zip means unpacking everything the 7z contains and re-packaging it as a standard ZIP archive. The usual reason is reach: 7z compresses better, but its LZMA/LZMA2 codecs are not understood by Windows Explorer or macOS Archive Utility, so every recipient needs a 7-Zip-compatible extractor. ZIP is the one format every desktop opens out of the box. Most "7z to zip" sites do the conversion on a server — you upload the archive, they process it, and send a ZIP back. ZipTool does the decode-and-repack entirely in your browser: you drop the .7z on the page, and nothing is uploaded and nothing installed.
You open the page, drop the .7z onto it, and the file tree renders locally — the 7z is decoded in your tab by a WebAssembly build of 7-Zip. Click Convert in the file-tree toolbar, pick ZIP as the output, and download the rebuilt .zip. If the 7z is password-protected, enter the password when it opens (AES-256 decryption is supported in-browser) and the conversion proceeds as usual. For the format background, see what is a 7z file.
How to convert 7Z to ZIP in your browser
No 7-Zip, no upload. The browser decodes the .7z and writes the .zip locally.
- Go to ZipTool and drag the
.7zonto the page (or use the file picker, or paste a URL). The archive is decoded in your browser and the file tree opens. - Click Convert in the file-tree toolbar (next to Extract-all). The converter reads the 7Z entries that are already in memory.
- Choose ZIP as the output format. The entries are re-packed into a standard
.zipwith Deflate compression and a central directory - Download the
.zip. The rebuilt archive is produced locally and handed to you as a download — your original 7Z and its contents are never transmitted anywhere.
Is it really private?
Yes. "Online" here describes where the tool runs — a web page — not where your data goes. The .7z is decoded by a WebAssembly 7-Zip running inside your tab, the entries are re-packed into a ZIP in memory, and the result is offered as a download. No server ever receives your file, its contents, or the converted archive.
You can prove it to yourself in a few seconds. Drop a .7z onto the page, wait for the file tree to open, then disconnect from the internet. The convert-to-ZIP step still works, because nothing about it depends on a network request. A tool that fails the moment you go offline was uploading your data. ZipTool does not. For the broader privacy case, see why client-side is safer than uploading.
Why convert 7Z to ZIP?
7z typically wins on size — LZMA2 often compresses 10–40% smaller than ZIP's Deflate, especially across many small files — but it loses on reach. Sending a .7z means betting that everyone on the other end has installed 7-Zip, PeaZip, or a recent WinRAR; sending a .zip means no bet at all. Converting to ZIP trades some size for near-universal compatibility, which is the right trade whenever the archive leaves your hands.
Common situations: emailing an archive to Windows or macOS users; handing assets to a client; publishing a download any visitor must be able to open. If you would rather *read* the 7z than change it, use the online 7z viewer; if you want the files written to disk as-is, see extracting a 7z online. For the wider picture, see archive file formats.
Honest limits
Conversion is a real capability here, with a few real boundaries worth knowing.
- You cannot convert TO RAR or 7Z. RAR encoding is proprietary to WinRAR — no browser (and no honest free tool) can *create* a
.rar. ZipTool converts in the other direction only: RAR, 7z, tar.gz, tar, and gz *into* ZIP, TAR, or TAR.GZ. See creating a zip online. - Password-protected 7z converts fine. 7z encrypts with AES-256, which ZipTool decrypts in the browser once you enter the password. Open the encrypted archive, then convert — the steps are the same. (Encrypted RAR, by contrast, cannot be converted.)
- The ZIP will usually be larger than the 7z. LZMA2 beats Deflate on ratio, so converting trades size for compatibility; the files inside come out byte-identical either way.
- Browser memory is the ceiling. The tab holds the decoded entries and the rebuilt ZIP in memory, so a very large
.7zcan get slow. For multi-gigabyte archives a desktop tool is more reliable.
Frequently asked questions
How do I convert a 7z to a ZIP online?
Open the page and drop your .7z onto it. The 7z is decoded in your browser by a WebAssembly build of 7-Zip, the file tree opens, and you click Convert in the toolbar, choose ZIP, and download the rebuilt .zip. No 7-Zip install, no upload, no account.
Do you upload my 7z to convert it?
No. The 7z is decoded by a WebAssembly 7-Zip running in your browser, the entries are re-packed into a ZIP in memory, and the result is downloaded locally. Your file is never sent to a server, stored, or handed to a third party. You can confirm it in DevTools (the Network tab shows no upload of your file) and by converting with the internet disconnected, which still works.
Can it convert a password-protected 7z?
Yes, when you know the password. Enter it when the archive opens — 7z uses AES-256, which ZipTool decrypts in the browser — and the convert step then works as usual. It cannot convert an encrypted archive without the key. (Encrypted RAR is the format this tool cannot decrypt at all.)
Will the ZIP be bigger than the 7z?
Usually, somewhat. 7z's LZMA2 typically compresses better than ZIP's Deflate, so the rebuilt ZIP is often 10–40% larger. The files inside are identical — only the container and the compression algorithm change. If size matters more than compatibility, keep the 7z.
Can I convert a ZIP to 7z?
No. This converter's targets are the open ZIP, TAR, and TAR.GZ formats — 7z output is not offered. To package files into a fresh archive instead, see create a zip online.
Is converting 7z to ZIP free?
Yes. Decoding the 7z and re-packing it as a ZIP is completely free, with no account and no install. The decoder runs locally in your browser; there is no per-file paywall.