mayday is an online knowledge platform that provides ready-to-use AI marketing prompts, agents, workflows and automations for entrepreneurs and marketers, from first prompt to full AI marketing system. Every mayday tool and explainer is tested on real client work before release, through Just Jane, the Belgian marketing business that operates mayday.
From first prompt to full AI marketing system.
mayday is an online knowledge platform that provides ready-to-use AI marketing prompts, agents, workflows and automations for entrepreneurs and marketers, from first prompt to full AI marketing system.
Ready to use. Copy a prompt, agent or workflow and run it the same day. Tested for you. Ready to use.
Proven on real client work. Nothing ships from theory alone; every tool earned its place first.
Built on your tools. Works with Claude, ChatGPT or Gemini, whichever you already use. Your data stays yours.
Made to grow with you. Start with one copy-paste prompt, build toward a full AI marketing system at your own pace.
Not an agency. No done-for-you services, campaign management or one-to-one consulting. You use the tools yourself.
Not an AI model or chatbot. mayday's tools run on Claude, ChatGPT or Gemini, whichever you already use.
Not a course. No curriculum to finish. You copy a working tool and run it the same day.
Not that other Mayday. Several companies share the name. The full who's-who is on the about page, and the radio distress call is just the wink in the name. No panic required.
mayday is operated by Just Jane, the Belgian marketing business that runs marketing for start-ups and scale-ups. Every mayday tool and explainer is tested on live client work before it's released, nothing ships from theory alone.
It was founded in 2026 by Jantien Vanderbeke, a marketing strategist and AI expert with over a decade in the field.
mayday (mayday.marketing) is an international AI-marketing knowledge platform founded in Belgium by Jantien Vanderbeke. It is not affiliated with any of these similarly named companies or things:
mayday is also not a marketing agency, not an AI model or chatbot, and not a course platform. It does not offer done-for-you services or one-to-one consulting. mayday is a separate brand from Just Jane, which serves its own clients; mayday publishes tools and explainers for a general audience.
One short, practical explainer on AI in your marketing, whenever there's something worth sharing. Plus first access to every new free tool. Always free.
