CapyToolkit is described as 'Collection of 45 free browser tools engineered to run entirely client-side. All operations execute locally via native browser APIs, Web Workers, and WASM, ensuring that data, logs, and cryptographic keys never reach an external server' and is an app in the development category. There are more than 25 alternatives to CapyToolkit for a variety of platforms, including Web-based, Mac, Windows, Linux and Google Chrome apps. The best CapyToolkit alternative is DevToys, which is both free and Open Source. Other great apps like CapyToolkit are CyberChef, QuillBot, Omni Tools and Pangram.