About Knock on Ports
A utility for executing port knocking sequences to discreetly open access to services protected by firewalls. Configure custom sequences using UDP, TCP, or ICMP packets with support for both IPv4 and IPv6. Key Features: •...
A utility for executing port knocking sequences to discreetly open access to services protected by firewalls. Configure custom sequences using UDP, TCP, or ICMP packets with support for both IPv4 and IPv6.
Key Features:
• Protocol Flexibility: Create sequences with UDP, TCP, or ICMP packets. Fine-tune parameters including destination ports, inter-packet delays, TTL, Hop Limit, and packet payload data.
• Automation & Integration: Automatically launch applications (e.g., SSH clients) or open URLs upon a successful knock. Supports integration with other tools via a custom URI scheme for advanced automation.
• Dual-Stack Support: Full compatibility with IPv4 and IPv6 networks.
• Quick Access: Utilize home screen shortcuts and a widget for immediate execution of configured sequences.
• Customization: Adjust the interface with dynamic color themes (Android 12+), custom accents, and light/dark modes. Includes options for improved contrast.
• Configuration Management: Export and import your knocking sequences for backup or transfer.
• No Ads, Open Source: A free, transparent application focused on privacy and user control.
Previous Versions
Here you can find the changelog of Knock on Ports since it was posted on our website on 2022-02-22 21:52:52.
The latest version is and it was updated on 2026-06-11 11:41:25. See below the changes in each version.
Knock on Ports version
Updated At: 2026-05-22
Changes: • New language localization: Armenian (credit to @PazikLend)
• New language localization: Spanish (credit to @Arquero)
• Update app theme (fix #37)
Knock on Ports version
Updated At: 2026-04-20
Changes: • Fixed a navigation issue
Knock on Ports version
Updated At: 2026-04-11
Changes: • New language localization: French (credit to @renaud38 and @Acide-Burn)
Knock on Ports version
Updated At: 2026-03-27
Changes: • New language localization: German (credit to @MoisAlexander)
Knock on Ports version
Updated At: 2026-03-14
Changes: • New language localization: Simplified Chinese
• The default inter-packet delay is set to 500 ms
• Bug fixes
Knock on Ports version
Updated At: 2026-02-08
Changes: • Wear OS support
• Extended progress information in notifications
• Bugfixes
Knock on Ports version 2.0.14
Updated At: 2026-01-25
Changes: • Bug fixes and stability improvements.
• New option to set UDP payload size separately from its content.
Knock on Ports version 2.0.12
Updated At: 2026-01-03
Changes: • Edge-to-edge improvements.
• Custom themes: choose any base color to generate your own theme.
• Added a pure black mode for AMOLED screens (works with custom themes).
• Set custom colors for sequence names based on resource availability status.
Knock on Ports version 2.0.10
Updated At: 2025-07-06
Changes: • New widget
• Advanced sequence list configuration
Knock on Ports version 2.0.8
Updated At: 2025-05-22
Changes: Resource Monitoring. Link sequences to external resources (ping, port, URL) with automatic availability checks. If the resource remains unavailable after knocking, the app will retry (configurable).
Sequence Groups. Organize configurations into groups for better management.
Edge-to-edge support for seamless display on devices with full-screen designs.
Disclaimer
Official Google Play Link
We do not host Knock on Ports on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Google and passed their terms and conditions to be listed there. We recommend caution when installing it.
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