Zip Files
Bundle files into a zip archive, or open an archive and take files out of it.
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or drag them here
any files · they are zipped in your browser
Your file never leaves your browser during processing
How it works
To zip files without installing anything, drop them onto this page and press the zip button — the archive is built in your browser and downloaded straight back, and the same page opens an existing zip and lets you pull individual files out of it.
Both directions run in the browser using a compression library that does its work on a background thread, so a large archive does not freeze the page. Files are read from disk by the page and handed straight back as a download. Nothing is uploaded, which for an archive tool matters more than usual: an online zip service is otherwise being handed every file you wanted to bundle, all at once.
That also removes the two limits such services impose. There is no file count cap and no total size cap beyond what your own device’s memory allows, and there is no upload wait — the slow part of zipping fifty files online is normally sending them, not compressing them.
The compression level is worth a thought rather than a default. Photos, videos, and PDFs are already compressed internally, so deflating them again costs time and saves almost nothing; “store only” bundles them just as usefully and much faster. Text, CSV, JSON, and source code compress dramatically and are worth the highest setting. Dropping a folder rather than individual files keeps its directory structure inside the archive.
Opening an archive lists every file inside with its unpacked size, and each can be saved individually or all at once — useful when someone sends a large zip and you only want one thing out of it. Two limits apply and are stated up front rather than surfacing as a strange error: password-protected archives cannot be opened, because decrypting one needs a step no browser API provides, and formats other than zip — rar, 7z, tar.gz — are not supported.
FAQ
How do I zip files without installing software?
Drop them onto this page and press the zip button. The archive is built in your browser and downloaded immediately; nothing is sent to a server.
Is there a file size or file count limit?
None imposed here, because nothing is uploaded. Your device’s available memory is the practical ceiling, since the files are held in memory while the archive is assembled.
Can I open a password-protected zip?
No. Zip encryption has to be decrypted before the contents can be read, and browsers provide no API for it. The tool detects the case and says so rather than failing with a confusing parse error.
Does it open RAR or 7z files?
No, only zip. Those formats use entirely different compression and container structures.
Why did my zip come out the same size as the files?
Because they were already compressed. JPEG, PNG, MP4, and PDF have compression built into the format, so a zip of them mostly just bundles. Text and code files shrink a great deal.
Can I zip a whole folder?
Yes — drag the folder in and its structure is kept inside the archive rather than being flattened.