Start a project
Add a name, target, start date and contingency for unexpected costs.
A project budget without surprises
Plan materials, labour and contingency, track actual costs and compare choices before small overruns become a big problem.
No card required · private storage · Plus €14.95 introductory one-time price

Four practical steps
Calculate locally right away. Sign in with a secure magic link only when you want to save, resume or upgrade.
Add a name, target, start date and contingency for unexpected costs.
Add materials, tools, rental, transport, finishing and labour.
Record suppliers, order status and payments; spot deviations immediately.
Compare scenarios and create a clean PDF or complete CSV with Plus.

More than a calculator
See where money goes by phase and category. Separate planned, ordered and paid items, and compare DIY with outsourced work.
For plans large and small
Straightforward pricing
We always check existing Premium rights first, so you never have to buy twice.
€0
Introductory price
€14.95 one time, VAT included
Built by Houtplatform
Budgets, suppliers and notes stay private and never enter analytics. We only measure aggregated product steps, without amounts or free text.
Passwordless sign-in uses a one-time link. Existing Houtplatform Premium members keep the same identity and rights.
Frequently asked questions
Yes. Calculate locally immediately. Enter your email and open the one-time magic link only when you want secure server storage.
The introductory price is €14.95 including VAT, paid once. It is not a subscription.
Yes. Use the same email and magic-link identity; no second account or purchase is needed.
No. Budgets are private and not indexed. Analytics never receives amounts, suppliers or free text.
Plus creates a print-friendly PDF and exports all cost rows as CSV.
Ready to take control?
Add the first cost item and immediately see what each choice does to your available budget.