Build With AI. Keep Your Data.
I build software with AI in the toolchain every day. That’s why I know exactly where data leaks, and why everything I build starts from the same principle: your data stays on your side.
What I Sell
Maskera
Maskera finds and masks personal data in text before it reaches AI systems, logs or analytics tools. Built so you can use AI without giving away your customers’ data.
Your textExample in Swedish
Anna Lindqvist (900101-0000) på Verkstadsgatan 12 i Malmö undrar om sin faktura.
What the AI model sees
[NAMN_1] ([PERSONNUMMER_1]) på [ADRESS_1] i [PLATS_1] undrar om sin faktura.
Services
I take on scoped projects from idea and architecture to production code.
Software Development
I build web apps, APIs, internal tools and integrations, in your existing codebase or from scratch.
AI & Automation
I build AI features, agents and automated workflows around your systems, requirements and sensitive data.
Security & Privacy
I review and build systems that handle sensitive data. Concrete improvements to architecture and code, not reports that gather dust.
- Interfaces
- TypeScript, React, TanStack
- Backend
- Node.js, Bun, Python, PostgreSQL, Docker
- AI & Integrations
- AI SDKs, APIs, MCP, webhooks
How I Build
AI in the Toolchain
Codex and Claude write code with me every day, wired into my systems. I don’t sell AI fear, I live in these tools and know exactly where the line for your data should go.
Fast Releases, Hard Gates
Small releases and CI/CD on everything. Every change passes quality gates that fail the build if anything slips. You won’t wait a quarter for a fix.
A Ridiculously High Bar
The site you’re reading scores top marks in Lighthouse on every page, with a perfect score for accessibility and SEO. Nobody asked for that. The scores are measured daily, see the footer. The same precision goes into everything I build for you.
Working With Me
Founder and Developer
Hägvall Labs is me. I build the products, I sell them and I stand behind what ships. No layers in between.
I work directly with companies and organizations, primarily in Sweden. We meet online, walk through your case and you see what I build in practice. Then you decide.
Look me up on LinkedIn / GitHub.
Get in Touch