Spijkerstudio builds focused, practical applications that eliminate the manual, repetitive work that slows down small teams. Each tool solves one problem — and solves it well.
Built with AI. Refined through real use. Constantly improving.
Our philosophy
Every tool at Spijkerstudio starts as a real problem someone on the team actually has. We don't build hypothetically — we build because the alternative (doing it manually) is worse.
AI accelerates every part of this: ideation, design, development, and refinement. The result is a small studio that punches above its weight — producing production-grade tools fast, and improving them continuously.
The tools
Each built for a specific workflow. Each available to try.
A personal command center for people who manage work across multiple projects. Fast triage, clear priorities, nothing slips.
Open PulseDocument reviewCollaborative HTML document review with AI-assisted revisions. Collect feedback, apply changes, publish new versions — without email chains.
Open RedlineInvoice processingForward invoices, confirm with one click, done. AI extracts supplier and date, proposes a filename, and sends it straight to your accounting system.
Open RelayHow we build
Every tool follows the same process: define the real problem, design a tight scope, build with AI assistance, and ship to real users as fast as possible.
Every tool starts with a specific, recurring frustration. We define the exact workflow that hurts before writing a single line of code.
We use AI throughout the development process — from architecture decisions to implementation. This means faster delivery and more time spent on what matters: the product experience.
Tools ship early and improve through actual use. Real workflows surface what matters. We iterate on what's genuinely painful, not what looked good in a planning document.