Port scanner
About this app
A handy systems and security-focused tool, Port Authority is a very fast port scanner. It also allows you to quickly discover hosts on your network and will display useful network information about your device and other hosts.
One of the fastest port scanners with host discovery on the market! Host discovery is typically performed in less than 5 seconds. If the device you're scanning drops packets, it takes about 10 seconds to scan 1000 ports. If the device you're scanning rejects packets, it takes less than 30 seconds to scan all 65,535 ports!
Features:
* Heavily threaded, no more waiting for results one at a time * LAN host discovery * Public IP discovery * MAC address vendor detection * LAN/WAN host TCP port scanning * Custom port range scans * Open discovered HTTP(S) services to browser * Lightweight service fingerprinting (SSH/HTTP(S) server type and version) * DNS record lookups supporting almost every record type * Wake-on-LAN for LAN hosts
Licensed under GPL-3.0-only, by Aaron Wood.
What's New in v2.4.5
Imported from the F-Droid repository index.
Version history
Sep 15, 2022 · 1.1 MB · Android API 19–31 · code 67
Imported from the F-Droid repository index.
SHA-256 416791a88e5a5d917ad989a5314f6cb903802d6d6c2e23f6721b88fa0b3f4ba8
Sep 14, 2022 · 1.2 MB · Android API 19–33 · code 66
Imported from the F-Droid repository index.
SHA-256 e5070dc8ba1f273d46d7785b4cba5a295c6dc5feea8d4bcaf3e6f5f3773c840c
Sep 10, 2022 · 1.2 MB · Android API 19–33 · code 65
Imported from the F-Droid repository index.
SHA-256 ad880b26b88bdf2c02f424aa921ffbe4e86151bade059920d3e4b6647357a127
Will it run on your device?
87%
- Runs on a broad range of modern Android versions.
- Multiple CPU architectures are covered.
Installation Guide
Open Settings on your Android device
Go to Security → Unknown sources (or Install unknown apps)
Enable "Allow from this source" for your browser or file manager
Open the downloaded APK file from your Downloads folder
Tap "Install" and wait for installation to complete
Launch the app from your home screen
Make sure to re-enable Unknown Sources restrictions after installation for security.
How to install this safely
How to verify the file you downloaded
Before you install anything, confirm the file is the one described here. On a computer, run shasum -a 256 your-download.apk (macOS or Linux) or certutil -hashfile your-download.apk SHA256 (Windows), then compare the output character-for-character with the SHA-256 on this page. If a single character differs, the file is not the build we recorded — delete it.
What the signing certificate proves
Every Android app is signed with a private key that only its developer holds. The fingerprint on this page is a hash of the matching public certificate, and it proves continuity rather than identity: it tells you a build came from whoever signed the earlier ones. Android enforces this at install time — if a package claiming to be com.aaronjwood.portauthority is signed with a different key, the system will refuse to install it over your existing copy. A fingerprint that changes between releases is worth pausing on, because a repackaged app that has been modified by someone else cannot keep the original signature.
How to roll back to an earlier version
If the current release misbehaves, 2.4.4 is the last build before it. Android will not install an older version code over a newer one, so you must uninstall Port Authority first — which clears its local data unless you have a backup. Reinstall the older APK only if its signing fingerprint matches the build you already trust, and check the API range: an older release may target an Android version your device has moved past.
Why we list sources instead of hosting everything
The official store channel is almost always the right choice: it updates automatically and carries the publisher's own distribution guarantees. A direct APK is useful when a device has no store access, when a rollout has not reached your region, or when you need a specific version — and only when the publisher has authorized that copy. APKBrowse does not list pirated, cracked, or unauthorized rebuilds of Port Authority, and a listing is removed when the evidence for it stops holding up.
Get Port Authority
Every source we list for com.aaronjwood.portauthority is legality-reviewed. Pirated or cracked builds are never offered.
Other sources
F-Droid listing
officialF-Droid builds this app from source and signs it. This is its official listing, with older builds and full release notes.
Source code
verified publisherThe upstream repository this build is compiled from.
We check legality and signature continuity, but device behaviour still varies. Install at your own discretion.
App Information
Security Verification
We record provenance; we do not run malware scans. Verify the hash yourself before installing.
SHA-256 Hash
416791a88e5a5d917ad989a5314f6cb903802d6d6c2e23f6721b88fa0b3f4ba8
Signing certificate
54a8aae53f52b33ef3bbe165b1d27c4aea9161353c130818c2ae806bdd42ee65
Permissions Required
What each permission lets Port Authority do. A highlighted one is worth a second look — not necessarily wrong, just worth asking whether this app needs it.
Previous Versions
The signing certificate fingerprint for this release is on record, so a build that does not match it did not come from this publisher.
More Security Privacy apps
More from F-Droid
Report a problem with this listing
A listing is only as good as its corrections. If a source is broken, a signature looks wrong, or this app should not be here, tell the moderation team.