Unzip Online
Browse and extract ZIP archive contents — free, unlimited, and entirely private.
Drop files here or click to choose
🔒 Your files never leave your browserHow it works
This tool reads a ZIP archive's file listing directly inside your browser tab — no server, no upload, no waiting. Only the archive's directory structure (the ZIP "central directory") is parsed upfront, which is instant even for huge archives; the actual file contents stay compressed until you choose to view or download something specific.
Browse the tree, expand folders, and select individual files or entire folders. Download a single file directly, or select several and download them together as a new ZIP — only the files you actually selected get decompressed and re-packed, nothing else.
Limitations
Password-protected (encrypted) entries are detected and shown with a lock icon, but can't be extracted yet. File names not confirmed as UTF-8 are still decoded as UTF-8 (the most common modern default) and flagged with an "encoding?" badge rather than guessed at with codepage detection, which is inherently unreliable — if a name looks garbled, that's why.
FAQ
- Is this unzip tool really free?
- Yes — completely free, with no file size limits and no account required. The archive is opened and extracted entirely in your browser, so there's no server cost to recoup.
- Is my archive uploaded anywhere?
- No — the ZIP file is read directly in your browser. Only the file listing is parsed upfront; individual files are decompressed on demand only when you choose to view or download them, so opening even a huge archive is instant.
- Why does a file show an "encoding?" badge next to its name?
- Older ZIP archives (and some tools) don't mark their file names as UTF-8, which means the original encoding (often a legacy codepage like CP437) is ambiguous. This tool decodes names as UTF-8 by default and flags the ones where that isn't guaranteed to be correct, rather than silently pretending certainty it doesn't have.
- Can I open a password-protected ZIP file?
- Not yet — encrypted entries are detected and shown with a lock icon, but can't be extracted. Support for password-protected archives is planned for a future update.