By Rinnert Deelstra — 20+ years · no handoffs

We build your website, webshop & AI.

Web, webshop & AI for SMBs — built to work. No hype, no middlemen. Just software that does its job.

Aim: response < 24h No sales pitch Honest advice
Recommended on LinkedIn “No challenge is too big for him” “Let's get things done” “A part of your team before you know it” 20+ years experience

No hype.
Just results.

Whatever we build — a website, a webshop, an AI workflow — the bar is the same: production software that actually works. 20 years of shipping taught us the difference between a demo and the real thing. And AI? We explore it the way we explore all new tech: by building. We find out whether it genuinely helps you — and if the answer is 'not yet', we say so.

// What we do

We build the web — and connect it.

Websites, webshops, AI and the custom integrations (APIs, sockets, realtime) that wire your systems, services and machines into an interface people reach in the browser.

Webmakkers builds websites, webshops and AI integrations for SMBs in Drachten, Heerenveen, Leeuwarden, Groningen and across Friesland — and remotely throughout the Netherlands.

AI integration & automation

Less manual work, more revenue. Chatbots & customer service that handles itself, RAG search in your own documents, workflow automation and AI in your webshop. GDPR-ready, EU-data, you stay in control.

AI QuickscanChatbots / RAGAutomationAI in webshop

Custom web development

Fast, scalable sites and web apps that convert — no page-builder bloat.

LaravelNode.jsVite

Webshops

A webshop that sells. Custom auctions, mega-menus, integrations — everything standard platforms can't do.

MagentoWooCommerce

Maintenance & growth

Faster, safer, keeps growing. Bespoke SLA, Core Web Vitals, AI augmentation.

SLACWV

The hard stuff

Realtime data, sockets, integrations with systems and machines. We build what others walk away from.

RealtimeAPIsModbus / IoT
// How it works

From idea to result — no surprises

Low barrier, clear agreements upfront — and we only build after your go. If something shifts, you hear it immediately, not afterwards.

Intro call

Free and without obligation. We look at where software or AI genuinely pays off for you — and where it doesn't (yet). 'Not yet' is an answer too.

→ or start with the online quickscan

Design

A graphic design or Figma design we refine together until it's right. We only build after your go.

Build

We build what you saw in the design, in milestones. Every change passes automated security & quality gates. The custom code is yours.

Maintain

Monitor, adjust, evolve. Cancellable monthly, no annual contracts.

From idea to live — startups too.

We helped 5+ startups go from first idea to live product, across various revenue models — from marketplaces and e-commerce to lead generation.

Work that works.

// Proof, not screenshots

Real projects. Real numbers.

AI integration

AI that ships — not demos

Chat assistants and capture forms integrated into client sites, plus AI content moderation and personalized discovery in our own platform — all built on our own reusable AI modules.

Reusable AI modules · content safety · chat assistants
E-commerce · Magento

Blomson — B2B auction webshop

Custom auction per product, Excel upload, mega-menu with category icons.

Custom features standard platforms can't do View the case →
Realtime · Node.js

Machine monitoring (Modbus)

Industrial controllers via sockets — live in the browser, visible and operable.

Shop floor → any screen, realtime View the case →
Realtime · sports

Club Mobiel

Live football streams, stats and news for football clubs — with subscriptions and iDeal/Afterpay payments, settled via Infostrada Sports.

Realtime streaming + payments · via Custom Media
// also built: Blomson VeloYou SIOS jTorm Rijbewijskeuring Officieel + more projects
// What we build

We build our own products too — with AI.

Not just for clients. We build these ventures ourselves on the same modern stack — powered by our own library of 280+ reusable modules that ship your project faster too.

3D ping-pong game In development

Multiplayer with 28 levels and online play.

Three.jsBunCloudflareRealtimeAI opponent
BoringItOn In development

Consumer platform with AI moderation, realtime feeds and payments — more when it launches.

LitPostgreSQLStripeAICloudflare
Blockchain project In development

A Solana dApp with wallet authentication and on-chain transactions.

SolanaBunLitPostgreSQL

280+ reusable modules

  • Events, venues & ticketing 90+ modules
    • Ticketing & RSVP
    • Calendar, series & recurring
    • Discovery feeds & search
    • Venues, geo & live presence
  • Identity & auth 30+ modules
    • Google & Apple login
    • Magic links & passkeys (WebAuthn)
    • 2FA (TOTP) & sessions
    • API keys & onboarding
  • Messaging, social & notifications 25+ modules
    • Chat, threads & reactions
    • Follows & activity feeds
    • Templated email & push
    • Inbound & outbound webhooks
  • Realtime & infrastructure 25+ modules
    • WebSockets & Durable Objects
    • Queues & background jobs
    • Caching & idempotency
    • Cron & metrics
  • Payments & monetization 15+ modules
    • Stripe Checkout & Connect
    • Subscriptions & renewals
    • Credits & pricing
    • Promos & upsells
  • Web platform, admin & analytics 20+ modules
    • Admin consoles & moderation
    • Analytics dashboards
    • PWA & offline
    • i18n & SEO tooling
  • AI, trust & safety 15+ modules
    • AI integration & moderation
    • Fraud & abuse signals
    • Rate limiting & captcha
    • GDPR export & erasure
  • Media & content 15+ modules
    • Uploads & malware scanning
    • Image pipeline
    • Video streaming
    • PDF & OG images

85+ specialist review agents and 100+ cited checklists security-scan and review every change before it ships.

Read how that works →
20+
years experience
40+
projects delivered
15+
years e-commerce
5+
startups — idea to live
Rinnert Deelstra, founder of Webmakkers
// No handoffs

You work directly with the builder.

No junior doing the work, no account manager in between — you work directly with Rinnert Deelstra (20+ years full-stack, e-commerce and AI). And when a project needs more, I bring in trusted partners — for design or extra capacity, say — while you keep a single point of contact.

AI works. But not for everything. We only build what delivers value — and we'll tell you honestly when something isn't ready yet.
// What others say

What clients and teammates say

I can confidently recommend him as a highly skilled and reliable WordPress developer. Rinnert played a key role in successfully launching our new homepage… and delivering integrations between WordPress, capture forms, AI chat assistants and marketing automation platforms such as Pardot. He combines technical expertise with a strong sense of ownership and partnership.

Anylamp needed some extra hands in Magento development and Rinnert delivered. Rinnert has worked on projects like improving checkouts, a huge Adyen payment module with a lot of testing… he is thorough, communicative and practical. All in all a solid choice.

Rinnert is our go-to Magento expert. No challenge is too big for him and his code is always top-tier. Magento is complex for us, but Rinnert makes it easy. A true craftsman.

An exceptionally good person to work with. His technical qualities are on another level. I recommend everyone to work with Rinnert.

Rinnert is a solid worker. He's a part of your team before you know it and helps you build solutions for your problems.

Rinnert is a great colleague to work with, he is businesslike and professional. He has great knowledge of code and code standards, is precise and works independently on user stories — combined with always delivering features, a great sense of responsibility and the pursuit of 100% customer satisfaction.

I have worked with Rinnert on multiple complex projects. Rinnert is a very valuable member of any team. He has a no-nonsense, let's get things done attitude. The quality of his work is high… I would love to have Rinnert in any project in the future.

By really getting your teeth into Amac, you brought this project to where it is now — without you it probably wouldn't be live yet.

I realized quickly that your skills are exceptional. We're jealous of the next team that gets to work with you.

I've never met anyone who picks up issues as fast and pragmatically as you.

// Frequently asked questions

Frequently asked questions

What does it cost?
Honest answer: it depends on scope — and we'd rather not name a number before we know your situation. You always get a no-obligation estimate first, and if anything shifts along the way you hear it immediately. Small steps, no open end, no annual contracts.
Where is my data stored?
EU-only, GDPR-compliant. We host on EU infrastructure (including Cloudflare EU) and keep your data within the EU.
How quickly can you start?
We aim to respond within 24 hours — and an intro call is quickly scheduled.
What if it doesn't work out?
Then we stop — it's that simple. We only build after your go on the design, work in small steps, and nothing locks you in: no annual contracts.
Who owns the code?
All custom code we write for you is yours — full source, documented and transferable. Where a build uses reusable modules from our own toolkit, those stay ours: you use them under licence terms we agree upfront — so you know exactly where you stand before we start.
Which technologies do you work with?
WordPress, Magento, Laravel, Node.js and modern stacks; AI integrations (chatbots, RAG, automation, content moderation).
Do you work on location?
Direct contact with the builder: remotely across the Netherlands and on-site in and around Drachten, Heerenveen, Leeuwarden and Groningen.
// Choose your channel

Want to chat? No commitment.

Prefer a message over email? Or just a callback? Choose what works for you.

KvK 74497243 EU-data · GDPR-ready Friesland — active across NL