ZIP packaging

Create, extract, split, inspect and password-protect ZIP files in your browser.

Before you start

A ZIP is a container. It keeps many files together as one download and compresses them without losing anything, but it saves little on files that are already compressed, such as JPG photos, MP4 videos or other ZIPs. If an archive arrives unexpectedly, look inside before you extract it.

Read the guide: How compression affects quality

Start here

Popular tools for this

Open a tool and process your file directly. Files are processed in your browser.

Create ZIP Extract ZIP Split ZIP Reduce ZIP size Password-protect ZIP

Available actions

Create a ZIP from files or a whole folder
Extract a ZIP, including a password-protected one when you know the password
Split a large ZIP into smaller parts
Password-protect a ZIP
List, inspect and compare what is inside archives
Calculate checksums to confirm a file arrived unchanged

Supported formats

ZIP

These are the formats the tools on this page accept today. If yours is not listed, the supported formats page lists everything FormatOS reads.

Common uses

Send a folder as one attachment
Open a password-protected ZIP someone sent you
Check what an archive contains before extracting it

Limitations

Files that are already compressed, such as JPG, MP4 or ZIP, barely shrink.
Passwords are never recovered or guessed: you need the correct password to open a protected ZIP.
Only extract archives from sources you trust.