# Unzip Files Online - Open ZIP in the Browser, Fix Garbled Names

> Free online zip extractor: open a zip with nothing installed, browse and preview what is inside, extract only what you need, use a password, fix garbled names.

- URL: https://qilingtools.com/en/unzip
- Category: Productivity (https://qilingtools.com/en/office)
- Tags: [Compression](https://qilingtools.com/en/tags/compress), [Productivity](https://qilingtools.com/en/tags/office)
- Last updated: 2026-10-26
- Price: Free, no sign-up
- Privacy: Runs locally in the browser; files are never uploaded

Drop a zip in and see what is inside: a folder tree with sizes, previews for text and images, and extraction of just the files you want. Encrypted archives only need the password, and garbled filenames can be fixed with one click. The archive never leaves your browser.

## How to use

1. Drop or choose a .zip file
2. Tick the files you want in the tree; click a name to preview it
3. Click "Download selected", or use "Extract to folder" to write straight to disk

## Features

- Folder tree with text, image, audio and video preview
- One-click fix for GBK / Big5 / Shift_JIS filenames
- Opens ZipCrypto and AES encrypted archives
- Extract a selection, or everything into a folder you pick

## FAQ

### Why are the filenames garbled, and how do I fix them?

Older Windows zip tools store names in the system code page (GBK for Simplified Chinese) without the UTF-8 flag, so other systems read them as UTF-8 and get mojibake. Pick the right encoding under "Filename encoding" — the tool also guesses one for you — and the names, including the extracted files, come out correct.

### Can it open password-protected zips?

Yes. When the archive contains encrypted entries a password box appears; ZipCrypto and AES-128/192/256 are all supported. The password is used locally for decryption and is never sent anywhere.

### What is the difference between "Download" and "Extract to folder"?

"Download" packs your selection into a fresh zip (a single selected file downloads as-is). "Extract to folder" uses the browser's file system API: you pick a directory and the files are written into it with their subfolders, like a desktop unzip tool. That option currently works in Chrome, Edge and other Chromium browsers.

### Can it handle big archives?

Yes. The directory and each file are read on demand rather than loading the whole archive into memory, so zips of several hundred MB to a few GB open fine. Extracting many large files at once is what uses memory — do it in batches if you hit a limit.

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