Dennis van Kooijk

4 listings we've seen · as of 4 Oct 2026. This is the maker name shown on the store, not proof of who owns the company.

Just for Fun

Confetti! Confetti all over... What else?

Developer Tools

Inspect cookies, storage, JWT tokens, and HTTP headers. Inject custom request headers with wildcard URL matching.

Social Networking

Honk with your friends! Create a room, share the code, and honk together. Or join the public room for everyone!

Social Networking

Verberg bekeken toppers en houd je browsetijd bij op Dumpert.nl. Slim, snel en privé.