encryptor for Mac.
A native Mac app with the same encryption as encryptor.app. Free, macOS only, downloaded directly from encryptor.app, not from the App Store.
No Windows version. On some operating systems, security just doesn't pay off. Shout-out to Redmond.
On Windows? encryptor.app works in your browser.
Questions
When will encryptor for Mac be available?
There is no release date yet. encryptor for Mac will be available as a direct download from encryptor.app. Until then, you can encrypt and decrypt in your browser at encryptor.app, with the same encryption and the same file format.
Does it cost anything?
Nothing. encryptor for Mac is free. There is no subscription, there are no in-app purchases, and you do not need an account. You download the app from encryptor.app and use it without paying or signing up.
How is it different from the website?
The encryption and the file format are the same. The Mac app fits into macOS: you can drag and drop files and folders, encrypt from the Finder with a right-click or from the Share menu, and save passwords in the macOS Keychain if you choose.
Where do I get it, and can I trust the download?
encryptor for Mac is downloaded directly from encryptor.app, not from the Mac App Store. It is signed with an Apple Developer ID and notarized by Apple, so it opens without warnings and shows that it comes unaltered from intelligent piXel GmbH.
Can I open files I encrypted on the website?
Yes. encryptor for Mac uses file format v3, exactly like the website and the offline edition, so a file encrypted in one opens in the others. Files and text from encryptor version 2 can still be decrypted, just as on the website.
How does the app handle passwords?
You never have to come up with a password. encryptor generates one for you: 26 Crockford Base32 characters plus 2 check characters that catch typing errors. The app can save it in your macOS Keychain, but only if you choose to.
Is the Mac app open source?
No, the app itself is not open source. The format specification (SPEC.md) and the offline edition of encryptor, which contains the same cryptographic core, are public on GitHub under the MIT License. That way, anyone can check the encryption and every file independently.
Will there be a Windows version?
No, encryptor for Mac runs only on macOS. On Windows and every other system, use encryptor.app in your browser. The offline edition, a single index.html file from GitHub, works without an internet connection.