A note for clients

Please check messages claiming to be from me

Someone is using a different email address to impersonate me and contact clients about supposed website updates and payments. Those messages are not from me.

Genuine emails from me only come from hello@derrick.dk. If you receive a request from another address, please do not act on it or make a payment. Contact me directly through this website to check first.

Contact me to verify
Free tools

Free tools

Useful starting points for apps, websites and the work behind them. No signup required.

Available tools

App name generator planning illustration

App name generator

Explore names from your app’s purpose, audience and preferred tone. Copy the ideas you want to keep.

Open tool

Free · No signup · Runs in your browser

Mobile app cost calculator planning illustration

Mobile app cost calculator

Model a budget with your own rate, editable effort ranges, platform assumptions and contingency.

Open tool

Free · No signup · Runs in your browser

RICE score calculator planning illustration

RICE score calculator

Compare features by reach, impact, confidence and effort. Rank your backlog and export the inputs and scores.

Open tool

Free · No signup · Runs in your browser

JSON to CSV converter planning illustration

JSON to CSV converter

Shape JSON into a table, preview the rows and copy or download CSV. Data stays in your browser.

Open tool

Free · No signup · Runs in your browser