Zip. Done.

Right-click a file — it's zipped. Right-click an archive — it's out. You barely open the app.

by LumiBear Studio

Simple

One thing, done well.

No modes, no clutter, no learning curve. When you do open the window, everything is already where you'd expect.

OtterZip main window

No ads.
No accounts.
No tracking.

No bundles, no nagging, nothing to sign up for. It compresses and extracts, then gets out of your way. Crash reports are strictly opt-in.

Speed

A native core, quietly fast.

The engine is written in Rust — native code that does the work and doesn't leave you waiting.

Compress
Extract
OtterZip window
OtterZip settings
Native UI

Looks like Windows, because it is.

Built with C# and WinUI — a real native interface, not a web page in a window. Fluent design, light or dark, ten languages.

Formats

Opens just about anything.

ZIP7zRARTARTAR.GZ GZBZ2XZZSTISOCAB

ZIP, 7z, RAR, TAR and more — with AES-256 and split archives when you need them.

How to get it

Free, or support us.

The free download and the Store version are the exact same app. Pick whichever suits you.

Microsoft Store

Install and update automatically through the Microsoft Store. Supports active development.

Windows · Automatic updates · Recommended

Direct download

Download the MSIX installer directly. Exactly the same app, no ads, no account required.

Windows · Free MSIX installer

How to install →