CapyToolkit vs HeimWall

Access a growing collection of free browser utilities for hardware testing, dev work, audio, and security. 100% client-side. Zero uploads. Try them now.

Signal, not surveillance. See how your engineers use Cursor, Claude Code, and Copilot: catch leaked secrets, PII, and confidential data, without blocking them or reading...

About CapyToolkit

Access a growing collection of free browser utilities for hardware testing, dev work, audio, and security. 100% client-side. Zero uploads. Try them now. Looks like you already have the app installed, or you're browsing in a private/incognito window. The latest additions, already live and ready to run. No server can detect a dead pixel at coordinate (1847, 932) on your monitor. That class of test is physically impossible to run remotely. Pasting those into a random online formatter is a security decision most people make without thinking.

About HeimWall

Signal, not surveillance. See how your engineers use Cursor, Claude Code, and Copilot: catch leaked secrets, PII, and confidential data, without blocking them or reading their prompts. Nothing sits in your send path, your prompt reaches the tool untouched, and what you type into an AI tool is never sent to us. To read your prompt before it is sent, the app reads the composer through the macOS Accessibility API and watches the clipboard. Accessibility is a wide permission and macOS does not offer a narrower one for this.