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How to Convert RAR or 7z to ZIP Without Installing Software

Repack a .rar or .7z into a .zip fully in the browser. libarchive.js reads the source, zip.js writes the ZIP — no installs, no upload.

Conversion runs locally via Zro7 Convert to ZIP. Archives never touch a server.

To convert a RAR or 7z to ZIP without installing anything, drop it into Zro7 Convert to ZIP. libarchive.js unpacks each entry in the browser and @zip.js/zip.js repacks them into a fresh .zip — same files, ZIP-compatible with Windows Explorer, macOS Finder, iOS Files, and every email attachment scanner.

Why convert at all?

  • Windows Explorer can't open .rar or .7z without third-party software; ZIP is native since Windows XP.
  • Email gateways often strip or quarantine .rar as "unknown container"; ZIP passes.
  • iOS Files and Android's built-in file manager read ZIP but not RAR/7z reliably.
  • Cloud storage previews (Google Drive, Dropbox, iCloud) preview ZIP contents inline, not RAR.

What's preserved

  • Directory structure, filenames (UTF-8), and file contents byte-for-byte.
  • Modification times.
  • Optional AES-256 password if you set one at the ZIP step.

What isn't

  • RAR-specific recovery records — ZIP has no equivalent.
  • 7z solid-block compression — ZIP compresses per-entry (usually slightly larger).
  • The original archive password (if any) — set a new ZIP password if you want one.

Steps

  1. Open Convert to ZIP.
  2. Drop the .rar or .7z. Entries are listed.
  3. Optionally set a ZIP password (AES-256), click Convert, download the .zip.

Frequently asked questions

Password-protected source archives?

Yes — you'll be prompted for the source password, then optionally set a new ZIP password.

Will the output be smaller than the source?

Usually slightly larger — 7z's LZMA2 beats ZIP's DEFLATE. If size matters, keep the 7z.

Multi-part RAR?

Drop all parts (.r00, .r01, ...) together; libarchive stitches them before repacking.

Is the output ZIP compatible with old Windows?

Yes — DEFLATE ZIP is readable by any Windows since XP.

Any upload?

None. Both unpacking and repacking happen in your browser.

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