WhatsYourSign adds a menu item to Finder.app. Simply right-, or control-click on any file to display its cryptographic signing information!
WhatsYourSign adds a menu item to Finder.app. Simply right-, or control-click on any file to display its cryptographic signing information:
Full details and usage instructions can be found here (opens in a new tab).
To Build WhatsYourSign should build cleanly in Xcode (though you will have to remove code signing constraints, or replace with your own Apple developer/kernel code signing certificate).
❤ Love this product or want to support it? Check out my patreon page (opens in a new tab) :)
Mahalo! This product is supported by the following patrons:
Description adapted from the project README.
Community project. Help and bug reports go to the maintainers on GitHub; AppsXi does not provide support for this app.
GNU GPL 3.0
Use and change it freely; anything built from it must be shared under the same license, with its source.
Read the full licenseAppsXi checks every version before it is listed.
Signed by Objective-See, LLC (VBG97UB4TA)
Apple Developer ID team VBG97UB4TA
Notarized by Apple
Hardened Runtime on
File matches the hash GitHub published
SHA-256 becd29117f4ab68d890f513eaa0d3fbdeb7dd66bd3a2268b365180435852d319
No malware found
ClamAV 1.5.4 on Oct 14, 2026
Install and behavior test in a virtual machine: not run yet
Coming soon for all listings.
Checked Oct 14, 2026 · Mac
ZIP · 3.0 MB
Yes. WhatsYourSign is free and open source under the GNU GPL 3.0. AppsXi lists the maintainers' official release and does not charge for it.
AppsXi downloads every version of WhatsYourSign from the maintainers' official GitHub release and checks it before it is listed. For version 3.2.2 (checked Oct 14, 2026), the Mac download is signed by its developer and notarized by Apple, each file matches the checksum GitHub publishes for the release, byte for byte and a malware scan found nothing.
Yes. WhatsYourSign has a native Apple silicon build, and it runs on Intel Macs too.
WhatsYourSign needs macOS 10.13 or later.
WhatsYourSign is an open source project by Objective-See Foundation on GitHub (objective-see/WhatsYourSign). Help and bug reports go to its maintainers there.
Something wrong with this app? Report a problem. Maintainer? Claim this listing or ask us to remove it.
No reviews yet. Anyone who downloads it from AppsXi while signed in can review it a day later.
Used this app? Sign in and download it here to review it a day later.
Share files and messages with nearby devices over your local network, no internet connection needed
Utility for formatting USB drives and creating bootable USB media from ISO images
Flash OS images to SD cards and USB drives, safely and easily
Control the brightness and volume of external displays on your Mac with keys or menu bar sliders
Upload images to S3, GitHub, Cloudflare R2, Imgur and 60+ other hosts and copy the link
App for managing and quickly switching hosts file entries, with remote hosts and a system tray menu