Easily detect, identify, and understand invisible characters in your text with our unicode viewer to show hidden characters online.

The Great Firewall of China (GFW) experienced the largest leak of internal documents in its history on Thursday September 11, 2025. Over 500 GB of source code, work logs, and internal communication records were leaked, revealing details of the GFW's research…

Open-source mail and collaboration server with JMAP, IMAP4, POP3, SMTP and WebDAV support and a wide range of modern features. Written in Rust and designed to be secure, fast, robust and scalable.

🎑Feature-rich terminal-based text viewer. It is a so-called terminal pager. - noborus/ov

Caido aims to help security professionals and enthusiasts audit web applications with efficiency and ease.

SecurityZines are new way of learning security concepts, check the collection of Zines down below. You can get them all in a bundle or individually. But why should you read it ? Because, its proven that graphics has more persistent memory than reading.

Cirkit Designer IDE is an all-in-one circuit design tool that helps you create and share electronic circuits with ease.

The most reliable website for privacy tools since 2015. Software, services, apps and privacy guides to fight surveillance with encryption for better internet privacy.

CoreMark® is an industry-standard benchmark that measures the performance of central processing units (CPU) and embedded microcrontrollers (MCU). - eembc/coremark

Bjorn is a powerful network scanning and offensive security tool for the Raspberry Pi with a 2.13-inch e-Paper HAT. It discovers network targets, identifies open ports, exposed services, and potent...

Free & Open Source apps by Alicia Sykes