Terms of use.

Last updated 10 November 2026. These terms are an agreement between you and WolfByte.Works ("we", "us"), the maker of LunaZip. By downloading, installing or using LunaZip you agree to them.

The app

LunaZip is a file archiver for Windows 11 (x64 and Arm64) and for Macs with Apple silicon on macOS 14 or later. It opens, creates, checks and repairs archives on your computer.

It's free

LunaZip costs nothing. There's no trial, no license key and no account. You may install it on as many computers as you like, at home or at work. Please download it only from luna.wolfbyte.works, so you get the signed Windows installer or the notarized Mac app, and their updates.

Acceptable use

Don't use LunaZip to break the law or anyone's rights, for example to open archives you have no right to open. Don't sell LunaZip, redistribute modified copies of it, or remove its notices. The open-source parts are covered by their own licenses, listed below, and nothing here limits your rights under them.

Your files

Your files are yours. LunaZip works on them on your computer and we never receive them. Keep backups of anything important: archiving, encrypting, repairing, "Overwrite, then delete the originals" and removing an archive after extracting all change or delete files, and a lost password or key file can't be recovered by anyone, including us.

Safety checks

The safety check and, on Windows, the optional Microsoft Defender scan help you spot risky archives, but no check catches everything. Open files only from sources you trust.

Updates

LunaZip checks luna.wolfbyte.works for updates and installs them when you agree. We may change or remove features in later versions.

No warranty

LunaZip is provided "as is", without warranty of any kind, to the extent the law allows. We don't promise it will be error-free or suit every purpose.

Limitation of liability

To the extent the law allows, WolfByte.Works isn't liable for lost data, lost profits or any indirect, incidental or consequential damages from using LunaZip. Because LunaZip is free, our total liability is limited to US$0, except where the law doesn't allow that limit.

Changes and law

We may update these terms; the date at the top shows the latest version. These terms are governed by the laws of the State of Texas, USA, except where your local consumer law says otherwise.

Licenses

7-Zip 26.06, © Igor Pavlov. LunaZip ships the unmodified 7-Zip console program (7zz) and the 7z.sfx module, built from the official source, tag 26.06. Most of 7-Zip is under the GNU LGPL 2.1 or later; some parts are under the BSD 3-clause license; the RAR decompression code is under the GNU LGPL with the unRAR restriction (it may not be used to re-create the RAR compression algorithm). 7-Zip's license.txt is installed with LunaZip. Source: github.com/ip7z/7zip and 7-zip.org. LunaZip isn't made or endorsed by Igor Pavlov or the 7-Zip project.
WinRAR (Windows) and RARLAB's rar (Mac) are not included. If you have one installed, LunaZip can use your copy to make RAR files, under RARLAB's own license.
Microsoft Defender is part of Windows. LunaZip only asks it to scan a file, under Microsoft's terms.
This website uses the fonts Chakra Petch and Manrope under the SIL Open Font License 1.1 (Chakra Petch license, Manrope license).
The website’s animation uses GSAP 3.13 with its ScrollTrigger and Flip plugins, © GreenSock, under the GSAP Standard “no charge” license (gsap.com/standard-license).

Contact

WolfByte.Works, Texas, USA. Email [email protected].