File Compressor (Zip / Unzip)
Create a zip archive from any files, or extract one — entirely in your browser. No upload, no signup, no file-size limits beyond what your browser can hold.
File Compressor (Zip / Unzip) — Create a zip archive from a list of files, or extract a zip you already have. The zip is built and extracted locally in your browser — your files never leave your device.
Your files never leave your device. The zip is built and extracted locally in your browser.
Was File Compressor (Zip / Unzip) useful?
What is file compressor (zip / unzip)?
Create a zip archive from a list of files, or extract a zip you already have. The zip is built and extracted locally in your browser — your files never leave your device.
Useful for bundling a few files to send over email, opening a zip you just received, or making a small archive before sharing. The privacy angle is the differentiator: most online zip tools upload your files to a server to do the work. This one does not.
How to use it
-
To zip: drop files in the left panel
Add as many as you want. The list updates with each file's size. Click "Compress" to build the zip; the download starts immediately.
-
To unzip: drop a .zip in the right panel
The list of contents appears. Click "Download" next to any file, or "Download all" to extract everything as individual files.
-
No file-size limit (other than your browser)
Streaming zip — handles a 1 GB file as comfortably as a 1 KB file. The browser may slow down with very large files; use a real desktop tool for anything over a few hundred MB.
Examples
Bundle a project for email
Add 10 files (a few KB each) to the left, click Compress, attach the resulting zip to an email.
A folder of small text files: README.md, package.json, src/index.js, src/utils.js, …
Result: A single .zip file with all the original files, compressed.
Open a zip you received
Drop a zip into the right panel. The contents are listed. Click Download next to the ones you need.
A zip you received via email or chat containing photos, documents, or source code.
Result: A list of every file in the zip with its size. Click each to download it, or use "Download all".
Frequently asked questions
Related tools
PDF Compressor
Repack a PDF with compressed object streams to reduce its file size.
Image Compressor
Shrink image file size with quality and format control, and see the savings before you download.
Image Compressor to Size
Compress a JPG, PNG, or WebP image to an exact target file size in KB. Iteratively re-encodes until the result fits.
Base64 Encoder
Encode any text — including emoji and non-Latin scripts — into standard Base64.
Image to Base64
Turn a small image into a Base64 data URL you can paste into HTML or CSS.