About Us

SDK was created with a simple purpose. Personal safety should be practical, accessible, and realistic for everyday life. In early 2020, I was looking for a compact set of safety tools I could keep on me while running errands, commuting, or walking alone. Nothing available felt modern or easy to carry, so I created my own kit and began building SDK.

SDK started with four essential tools and a clear mission. Make safety tools that are easy to reach, easy to use, and easy to carry. What began as a small idea quickly gained attention online and grew into a brand trusted by people who wanted to feel more confident in their daily routines.

Designed for everyday life

SDK tools are compact, lightweight, and discreet so they fit naturally into your day. You can clip them to your keys, your bag, or your belongings and keep them accessible without adding extra bulk.

Shaped by our community

SDK became one of the first modern self defense keychain brands online. The feedback and experiences shared by our community helped us grow from four tools to a full collection of pepper sprays, alarms, escape tools, disguised protection tools, and travel safety essentials.

We are committed to continuing to expand and improve, building tools that help people feel safer and more prepared in a world that can be unpredictable. SDK is here to support your confidence, your safety, and your peace of mind every day.