The little tool you keep wishing existed — build it today.
Describe what you need, refine it until it fits, and publish it for everyone else who needs the same thing. Keep it free, or put a price on it and earn from every sale.
Free plan, no card. Three tools, your code and your data downloadable at any time.
Split-the-bill calculator
Runs in the browser · 1.204 runs
Café shift planner
Shared between the whole team · 4,90 €
Reading list
Every visitor gets their own · free
Three kinds of tool. You pick before you start.
The kind decides what your tool may do on the server, so it is the first question we ask — and the builder writes the matching code from the first attempt.
Static
HTML, CSS and JavaScript. Nothing leaves the browser.
- Calculators, converters, generators
- Works offline, downloads as one file
With a database
A shared store on the server, no backend code to write.
- Lists, counters, submissions, boards
- Export everything as JSON
With user accounts
Your tool gets its own sign-up, login and private data.
- Trackers, journals, personal dashboards
- Passwords and sessions handled for you
Say what you want. Change your mind as often as you like.
Every change lands in the live preview next to you. Open the HTML, CSS or JavaScript whenever you want to take the wheel yourself.
New bike — 1.200 €
816 € saved · 384 € to go
From idea to published in an afternoon
Pick the kind
Static, with a database, or with user accounts. One click, before anything is built.
Describe and refine
Write what it should do. Adjust wording, colours and behaviour until it feels right.
Add your own touch
Upload images or data, edit the code directly, test it in the preview.
Keep it or submit it
Use it yourself, send the link to your team, or submit it to the marketplace. We look at every submission before it goes live.
Start free. Pay when your tools grow.
Paid plans add user accounts, bigger databases, more storage and a larger share of every sale.
Free
- 3 tools
- 20 builder requests / month
- HTML / CSS / JS tools
- Small database (500 rows / tool)
Plus
- 20 tools
- 250 builder requests / month
- User registration for your tools
- 10.000 database rows / tool
Premium
- 100 tools
- 1.500 builder requests / month
- User registration for your tools
- 100.000 database rows / tool
Enterprise
- Unlimited tools
- 10.000 builder requests / month
- User registration for your tools
- 1.000.000 database rows / tool
Somebody else needs your tool too.
Build the thing you have been working around with a spreadsheet. It takes an afternoon, and the next person who searches for it will find yours.
Start a tool