Ninja Dev is your all-in-one platform for smart, secure, and fun developer tools — built for professionals, students, and tech enthusiasts alike. Whether you're looking to generate strong passwords, decode JWTs, or simply enjoy a few Chuck Norris jokes while you code, this site brings together essential utilities and light-hearted extras, all crafted with performance and privacy in mind.
The entire site is 100% static and runs directly in your browser, thanks to modern technologies like Nuxt and static site generation (SSG). There are no servers, no databases, and no tracking. All tools are implemented to run entirely on the client-side — nothing you do is ever sent over the internet.
That means whether you’re generating a password, inspecting a JSON Web Token, or just having fun with jokes, your data stays private. Ninja Dev was designed with a simple principle in mind: tools should work for you — not collect from you.
We believe that the best tools are simple, useful, and respectful of your privacy. That’s why all our utilities are designed with a minimalist UI, high usability, and strong attention to detail. You don’t need to create an account, and there’s nothing to install. Just load the page and go.
Ninja Dev is constantly evolving — new tools are added regularly, and we're always working on new ways to make your development workflow smoother, faster, and more enjoyable. From everyday development helpers to just-for-fun generators, this is your playground and productivity booster in one place.
Here’s what you’ll find at Ninja Dev:
Ninja Dev is made by developers, for developers — with a touch of fun, and a strong commitment to quality, simplicity, and absolute privacy. Explore, enjoy, and bookmark us for your daily dev dose — fast, free, and forever offline.