Upload any ZIP archive to browse its folder structure, preview files, and extract contents — all in your browser. Your data never leaves your device.
or click to browse from your device
Click any file in the tree to preview its contents
A complete online ZIP file reader, extractor, and previewer — built for speed, privacy, and ease of use.
All ZIP processing happens entirely in your browser using JavaScript. Your files are never uploaded to any server. Zero data leakage, guaranteed.
Preview images, text files, source code, CSV, JSON, XML, HTML, PDF, and 50+ other formats directly inside the ZIP without extracting them first.
Navigate nested folder structures with an expandable tree view. Collapse and expand directories to explore large, deeply-nested ZIP archives with ease.
Download individual files by clicking the download button, or extract the entire ZIP archive at once with a single click. Fast and seamless.
Search across all filenames inside the ZIP in real time. Instantly filter by file name, extension, or path — even inside deeply nested folders.
Source code files like JS, Python, HTML, CSS, JSON, YAML, and PHP are rendered with syntax highlighting for clear, readable code review.
Fully responsive design that works beautifully on smartphones, tablets, and desktops. Open and explore ZIP files on any device, any screen size.
Detects encrypted ZIP archives (AES-256 and ZipCrypto) and prompts for a password to decrypt, so you can open protected archives safely.
View detailed metadata for every file: compressed size, uncompressed size, compression ratio, file type, and last modified date — at a glance.
Three simple steps — no account, no software, no waiting.
Drag & drop your .zip file onto the upload area, or click to browse and select it from your device. Works on any operating system.
Explore the folder tree, click any file to preview its contents — images, code, text, CSV, PDF and more render instantly inline.
Download individual files or extract everything at once. Your browser handles the extraction — fast, private, no upload needed.
All files are processed locally. Close or reload to start fresh. Use our tool as many times as you need — it's always free.
Managing compressed archives used to require dedicated desktop software — not anymore. Our Open ZIP Online tool transforms your browser into a fully capable ZIP file viewer and ZIP extractor, letting you inspect, preview, and download files from any ZIP archive without installing a single application.
Whether you need to unzip files online for a one-off task or routinely work with ZIP archives across different machines, this tool delivers a consistent, fast, and completely private experience. As a browser-based ZIP file reader, it leverages WebAssembly-powered JavaScript to handle even large archives efficiently — the extraction engine runs entirely on your device, so your sensitive files never travel over the internet.
The online ZIP extractor supports the full spectrum of file types you'd find inside a typical archive. Text-based files — source code, configuration files, JSON, XML, YAML, CSV, Markdown, HTML, CSS, and JavaScript — are rendered with clean syntax highlighting for easy reading. Images in PNG, JPEG, GIF, WebP, and SVG formats appear inline as fully rendered previews. PDFs open in an embedded viewer. The tool even detects binary files and presents their hex or metadata summary instead of garbled output.
The folder tree panel mirrors the directory structure inside the ZIP exactly, making it trivial to navigate nested projects, backup archives, or deployment bundles. Real-time search filters across all paths and filenames simultaneously, so finding a specific file inside a ZIP with hundreds of entries takes milliseconds. Every file entry displays its compressed and uncompressed size, helping you identify bloated assets or validate compression ratios instantly.
Beyond simple unzip online extraction, this tool functions as a lightweight code review station. Developers can drop a project ZIP and immediately browse the entire codebase without cloning a repository. Designers can inspect asset folders. System administrators can audit configuration bundles. Journalists and researchers can quickly scan document archives for relevant files before committing to a full download.
Security is built in by design. Unlike cloud-based zip extractor services that process your data on remote servers, everything here runs client-side. There are no file retention policies to worry about because no file ever leaves your browser tab. Confidential reports, medical records, financial statements, or proprietary source code all stay completely under your control throughout the entire viewing and extraction process.
Our tool is designed for everyone — from developers inspecting build artifacts to everyday users who received a ZIP file and simply want to see what's inside. Fast, free, private, and reliable: this is the ZIP file viewer and online unzip tool you've always needed, available right here with zero friction.
Everything you need to know about our online ZIP viewer and extractor.
Explore our full suite of free online file viewers, converters, and AI-powered tools — all available instantly in your browser, no login required.