The Lab · 11 free tools
Free online marketing tools from 2050
Calculate, simulate and plan before you spend a euro. Every tool runs right in your browser — no account, no installation, and the data you enter goes nowhere.
Digital maturity scanner 2 min
9 questions → a score for Presence, Promotion and Performance, plus a personalised action plan.
Open the tool →Google & Meta Ads budget simulator Live
From your budget: clicks, leads, customers, cost per customer and ROAS, channel by channel.
Open the tool →CRO calculator: money left on the table Live
How much extra revenue the same traffic brings at a better conversion rate.
Open the tool →Google & Facebook ad studio Live
Write your ad and see it live as a Google and Facebook ad, with limits and checks.
Open the tool →UTM builder + QR code QR
Clean, measurable campaign links with a print-ready QR code.
Open the tool →Social media calendar generator Export
A 4-week editorial plan with ideas, formats and times — CSV and calendar export.
Open the tool →Website cost configurator €
Pick the site type and features; get the price range and the recurring costs.
Open the tool →LTV, CAC & break-even calculator New
Customer lifetime value, acquisition cost, break-even ROAS and payback period.
Open the tool →Google SERP snippet preview New
Title and meta description in pixels, with desktop and mobile previews and copy-ready code.
Open the tool →Email subject line tester New
Inbox preview, spam-risk checks, a score and A/B comparison of subject lines.
Open the tool →Landing page audit New
A 33-point checklist with a score and your top 5 prioritised fixes.
Open the tool →Why free
Better decisions, before the first conversation
The most expensive mistakes in marketing are made before you start: budget put on the wrong channel, a website built without a clear purpose, campaigns with no measurement. These tools show you the numbers and the priorities — and if you like, you can send us the result and we’ll pick up the conversation from there.
Private by design
Calculations run locally, in your browser. We don’t use tracking cookies and we don’t save what you enter on our server.
Assumptions in plain sight
Each tool shows you its formulas and starting values — and lets you replace them with your own real figures.
Results straight to us
One click on “Send the result” pre-fills the contact form. You decide whether to send it.
Frequently asked questions
About the tools in the Lab
Are the tools really free?
Yes, completely free and with no account. We built them for entrepreneurs and marketing teams who want to decide on figures, not impressions.
What happens to the data I enter?
Nothing — it stays in your browser. Calculations run locally, in JavaScript. The only exceptions are the UTM builder (link history) and the landing page audit (saved answers), which use your browser’s local storage only when you choose to save, and you can delete that data at any time. Nothing reaches us unless you send the result yourself through the contact form.
How accurate are the estimates?
They are simulations based on assumptions that you can see and change. They show the order of magnitude and how the figures relate to each other (for example, how conversion rate affects the cost per customer); they do not guarantee results. For exact figures on your own business, we run an analysis on your real data.
Can I use the tools for my own clients?
Yes. The UTM links, QR codes, editorial calendars and ad previews you generate are yours, and you can use them however you like.
Want the real figures, not just a simulation?
We run the analysis on your business data — traffic, campaigns, conversions — and show you where the biggest gain is, with a concrete plan.