OpenToolBox – Privacy-first developer tools running entirely in-browser

Summary: OpenToolBox is a free suite of over 25 developer tools that operate fully client-side in the browser, ensuring code, documents, and data never leave the user’s device. It processes tasks like PDF signing, JSON formatting, and image conversion locally, eliminating the need to upload sensitive information.

What it does

OpenToolBox provides multiple developer utilities that run 100% in-browser, handling all data processing on the client side without any server interaction or data transmission.

Who it's for

It is designed for developers, designers, students, and security-conscious professionals who require privacy when performing common development tasks.

Why it matters

It prevents sensitive data exposure by avoiding uploads to external sites, addressing privacy risks inherent in many online developer tools.