Our Mission
DevTools was created to provide a simple, fast, and free developer tools that anyone can use without registration or downloads. We believe essential tools should be accessible to everyone.
Why Choose Us?
- 100% Free — No signup, no hidden costs
- Privacy First — All calculations run in your browser
- Fast — Loads instantly on any device
- Mobile Friendly — Works perfectly on phones and tablets
- Minimal Ads — Non-intrusive advertising keeps us free
Contact
Have feedback or found a bug? Visit our contact page.
About 2K3D s.r.o.
This website is operated by 2K3D s.r.o., a company registered in the Czech Republic (Company ID: 09124497). For more information, visit the company registry entry.
Frequently Asked Questions
What tools are included in DevTools?
DevTools covers the everyday needs of developers: a password generator and password strength checker, hash generator, UUID generator, JWT decoder, color picker, Markdown editor, QR code generator, CSS gradient and box-shadow generators, SQL formatter and more — over 20 tools in total.
Do I need to create an account?
No. Every tool works instantly in your browser with no signup, no email and no limits. Open a tool and start using it.
Is it safe to paste sensitive data like tokens or passwords?
Yes. All tools run entirely client-side in JavaScript — whatever you paste (JWT tokens, passwords, keys) is processed on your device and never sent to or stored on a server.
Who operates DevTools?
DevTools is part of the SimpyTool network of free online tools, operated by 2K3D s.r.o., a company registered in the Czech Republic.