To register your license:
1. Launch Archiver 4
2. Click Register
3. Enter your license key and click Save

Besides several under-the-hood improvements, here are some features we've added to Archiver that we feel you'll find are worth the upgrade:

• A dark and light mode that blends seamlessly into your Mac
• Performance optimized for macOS Big Sur

Indeed there is! You can upgrade to Archiver 4 for a discount if you own a license to either Archiver 2 or Archiver 3.

If you purchased Archiver after January 1st, 2021 you’re entitled to a free upgrade. Please contact us with your serial number and we’ll send you your new serial number.

That's right! Archiver can open, create and convert archives in the RAR format. Creating RAR archives requires a third-party plugin, but this is easily installed.

Please note that Archiver only supports creating RAR archives in our direct download version. The Mac App Store's sandboxing rules prohibit use of the RAR plugin.

There are two differences in order to comply with Apple's Mac App Store rules:

• Archiver only supports creating RAR archives in our direct download version. The Mac App Store's sandboxing rules prohibit use of the RAR plugin.
• Default output destination. In the direct download version the default output folder is set to "Same folder as input files" whereas in the App Store version this is set to "Ask me".

Archiver can uncompress, unpack, unzip, unrar and open most archive file formats you'll encounter.

See the list of supported file formats or download Archiver and hit it with an archive.

.archiver archives use image and audio pre-compression, followed by Xar compression.

Yes, Archiver can uncompress password-protected encrypted archives, such as those in the RAR, 7zip and/or Zip format.

Archives with both standard encryption (where the file contents are encrypted) and the strong header encryption (where the file names are concealed) can be extracted with Archiver.

To open encrypted archives, simply drag them onto Archiver, enter your password and click Extract. That's it!

Archiver uses pkzip encryption for Zip archives and AES-256 for 7zip archives.

We strongly recommend the latter for securely archiving files.

Yes, Archiver can combine and then unarchive split archives in RAR and 7zip format.

To open a split archive file, simply drag one or more of the split files onto Archiver and click Extract. Easy as pie! Download Archiver now and try it out.

Yes, Archiver is both a file splitter and file combiner!

You can also create split 7zip archives here.

Similarly, to combine a set of split files, drag one or more of the files onto Archiver and click Combine.

Sure thing!

When creating Zip, RAR, 7zip, Tar Gzip or Tar Bzip2 archives, you can set the compression level of the archive. The higher the compression strength, the smaller the archive (but the longer it takes to create and extract the archive).

The Clean menu item removes any stale temporary working directories created by Archiver.

Normally Archiver cleans up any working directories automatically when an operation (such as extracting an archive) completes. Running this command is only necessary if Archiver quits unexpectedly and so wasn't able to clean up the temporary directories automatically.