01Websites, web shops and apps · Leiden, NL
Your website.Fixed price.Fixed date.
Tell me what you need. Within one working day you get a fixed price and a delivery date, in writing. No hourly billing, no surprises.
02Work
My work.
Everything below is actually live. Click and see for yourself.
03Services
What I make.
From logo to web shop. What I’m best at: web shops, automating boring work with AI, and getting you found in Google and ChatGPT.
- Website A fast site that turns visitors into customers.
- Web shop A web shop that sells. Custom or Shopify.
- Automation Repetitive work that does itself. You approve everything before it goes out.
- App An app for phone and tablet, from sketch to launch.
- Browser extension A Chrome extension, all the way to approval in the Chrome Web Store.
- Branding One recognisable look, the same everywhere.
- Marketing Ads and pages that stand out and get people to act.
04Process
One message.I handle the rest.
This is how it goes, whatever you need. Tap an example and watch.
- 01
You message or email me
A few lines about your business and what you want. A website, a web shop, an app or work that should run by itself.
- 02
Tomorrow, a price and a date
Within one working day, in writing. Nothing starts before you agree.
- 03
I build, you watch it grow
You see it take shape along the way. On the agreed date it goes live.
- Hi Marius! My hair salon needs a new website. Can you do that?
- Sure. What should be on it?
- Online booking, the prices and some photos.
- Clear. Tomorrow you have a fixed price and a delivery date.
- Quote.pdfFixed price · live within 1 to 2 weeks
- Agreed!
- I want to sell the cakes from my bakery online, with pickup and delivery.
- Can do. Custom or Shopify, whatever suits you best.
- Tomorrow you have a fixed price and a delivery date, in writing.
- Quote.pdfFixed price · live within 2 to 3 weeks
- Great. When do we start?
- Right after you agree. You see it grow along the way.
- I have an idea for an app for my gym. Members should be able to book classes.
- Love it. I sketch the screens first, so you know exactly what you get.
- Quote.pdfFixed price · done within 3 to 6 weeks
- Clear. Agreed.
- Then we build. On the agreed date it goes live.
- Every week I retype quotes from WhatsApp. Can that go faster?
- Yes. A photo or message from a customer becomes a draft quote from your own price list.
- You approve it before it goes out. No price is made up.
- Quote.pdfFixed price · fixed delivery date
- Sounds good. Let’s do it!
- Can you build a Chrome extension for our team?
- Yes. I have eight of my own in the Chrome Web Store, and I handle the approval too.
- Quote.pdfFixed price · done within 3 to 5 weeks
- Agreed, let’s go.
05About
Marius Kerkvliet
I am Marius, a web designer in Leiden, the Netherlands. I design and build everything myself, from the first sketch to the day it goes live.
For others I made, among other things, the site of John Asian Food in Barneveld, which shows by itself whether the kitchen is open, and the one for the Xilent Disco Walk, a charity walk through Leiden.
I also build my own products: AnswerGround, which shows where a business ranks in Google Maps, Knyaw, a free app for learning to read Sgaw Karen, and eight extensions in the Chrome Web Store.
One person, one point of contact. You always talk to me.
Four promises, in writing
Fixed price upfront. Fixed delivery date. Quote within one working day. One person, from design to launch.
06FAQ
Questions.
Not listed? Ask via the form.
How do I know the price will not creep up?
Because it is not an estimate. You get one amount in writing before I start, and that is what the invoice says. I do not bill by the hour: overruns cost me time, not you money.
How do I know it will not drag on for months?
The delivery date is in the quote, so it is a promise. A website takes one to two weeks, a web shop two to three, an extension three to five, an app three to six. You see the work along the way.
What do you need from me to start?
A few lines about your business and what you want. That is all I need for a price and a date.
What happens after it goes live?
The site is yours. Domain and hosting are in your name, so you are never tied to me. Maintenance is a small fixed monthly amount, cancel any month. If you leave, I hand everything over for free.
When do I pay, and what if it goes wrong?
Half at the start, half at launch, with fourteen days per invoice. No subscription, nothing afterwards. If you stop halfway, you pay only for what is finished and keep what is already there.
07Quote
Let’s buildsomething good.
Tell me what you need. Within one working day you have a fixed price and a delivery date. No sales call.

Nice, thanks!
You’ll hear from me within one working day, with a fixed price and a delivery date.
- One fixed price and one delivery date, in writing
- Reply within one working day, no sales call
- Payment in two halves: at the start and at launch
Or email: hello@murmweb.dev