ZIP Viewer Questions, Answered

An online ZIP viewer is a web tool that lets you open a ZIP archive and see what is inside it without installing WinZip, WinRAR, 7-Zip or any other software. You load the archive in your browser, and the tool lists every file and folder it contains so you can browse the structure, preview individual files, and download just the ones you need. Our online ZIP viewer goes a step further than most: it runs entirely in your browser, so the archive is never uploaded to a server at all.

It depends entirely on how the tool works. Most online ZIP tools upload your archive to their server, unpack it there, and hand you back a download link — which means a stranger's machine has held a full copy of your files. This tool never does that. Your archive is read by JavaScript running inside your own browser tab, using the same sandbox that protects you on every other website. Nothing is transmitted, so there is nothing to intercept, log, or leak. We also flag risky entries inside archives, such as path-traversal filenames and executables. See why client-side ZIP viewers are safer for the full explanation.

No. Files you open from your own device are processed entirely in your browser and are never uploaded, stored, logged, or transmitted to us — we could not access them even if we wanted to. There is one narrow exception worth being precise about: if you paste a public URL and the host blocks direct browser access, we relay those bytes so the fetch can complete. That only ever applies to a public file you explicitly pasted, the data is streamed straight through without being written to disk, and nothing is retained. Our privacy policy spells this out in detail.

Images (PNG, JPEG, GIF, WebP, AVIF, SVG, BMP, ICO) render directly. Text and code files (TXT, MD, JSON, XML, CSV, HTML, CSS, JS, TS, PY, JAVA, GO, RS, SQL, YAML, and dozens more) display with line numbers. PDFs open in an embedded viewer. Video and audio play in a full media player with seeking, volume, captions, fullscreen and picture-in-picture — streamed straight from the archive rather than extracted. A ZIP nested inside your ZIP can be opened in place. Anything we cannot render shows a hex preview of the opening bytes plus a download button, so you always learn something about the file.

Yes, and this is the feature most competing tools simply do not have. Paste a direct link to a .zip file — a GitHub release asset, an S3 object, a CDN download — and the viewer fetches and opens it without you downloading it to your device first. You can also share a link with ?url= appended so someone else opens the same archive in one click. This is genuinely useful when you want to check what is inside a download before committing to it.

Yes. Choose Open from Google Drive instead of picking a file from your device, sign in, and select the archive in Google’s own file chooser. Two things are worth knowing. First, we ask for the narrowest permission Google offers — drive.file, which grants access only to the specific file you pick and never to the rest of your Drive. Second, Google’s sign-in and picker scripts are the only third-party code this site ever loads, and they load only when you press that button, so if you never use Drive your browser never contacts Google at all. The archive is then read in small ranges directly from Drive rather than downloaded whole, so size is not a problem, and the access token stays in your browser — it is never sent to us. Our privacy policy covers this in full.

Yes. Switch to Create a ZIP, drag in individual files or entire folders — nested folder structure is preserved — name the archive, and download it. You can also tick Protect with a password, which encrypts the contents with AES-256, the same standard 7-Zip and WinZip use; the resulting .zip opens in any ordinary archive tool once the password is entered. Compression and encryption both happen inside your browser, so the files you are packaging are never uploaded — which makes this a genuinely private way to bundle something before sending it on.

Completely free, with no account, no email, no sign-up, and no trial period. There are no file-size tiers, no daily quotas, no watermarks, and no paid plan that unlocks features. Because all the heavy work happens on your own computer rather than on ours, serving you costs us essentially nothing, so there is no reason to meter it.

We impose no limit of our own. The practical ceiling is your device's available memory, because the archive is held in your browser rather than on a server. On a typical modern desktop that means archives in the hundreds of megabytes open comfortably, and multi-gigabyte archives often work too. Phones and tablets have less headroom, so expect a lower ceiling there. Archives are parsed in a background thread, so even a very large file will not freeze the page while it loads.

Yes. Every file in the list has its own download button, so you can pull out a single document without extracting the whole archive. You can also tick several files and download them together as a new, smaller ZIP — handy when you only need a few items out of a large archive. And the original archive itself is always available as a single download.

Any modern browser works: Chrome, Edge, Firefox, Safari, Brave, Opera and Vivaldi, on Windows, macOS, Linux, Android and iOS. There is nothing to install and no extension required. The tool can also be installed as a progressive web app, after which it works with no internet connection at all — useful on a plane or a locked-down network.

Yes, and without extracting them. Select a video or audio file and it opens in a full player — play, seek, volume, captions, fullscreen and picture-in-picture. The clever part is what does not happen: media is almost always stored uncompressed inside an archive, so we read only the bytes you are actually watching. A 1 GB video inside an 8 GB archive starts playing straight away, and skipping to the middle fetches just that part. MP4, WebM, Ogg, MP3, WAV, FLAC, M4A and AAC all work. Containers no browser can decode — MKV, AVI, WMV, FLV — are detected and flagged, with a download offered instead of a player that would silently fail.

No. Open as many archives as you like, as often as you like. There is no rate limit, no counter, and no throttling, because each session runs on your own hardware rather than consuming ours. Bookmark it and use it every day if it is useful to you.