Windows desktop app
IV
InstaVision
Create Instagram and TikTok content with a native Windows app. One-time purchase, no subscription, no browser dependency.
Buy on Gumroad →ZacLabs builds software
with agentic velocity.
An independent software studio in Croatia for founder-grade products, AI-assisted MVPs, and practical agent workflows. Senior engineering judgment, modern AI tooling, fast delivery.
Product portfolio
Focused tools,
Focused tools,
built lean.
Every product is designed around one sharp job — no bloat, no unnecessary subscriptions, no complexity added for its own sake.
Privacy-first web tool
SD
ScrollDecoded
Upload TikTok, Instagram, or YouTube data exports and see what the platforms hide — unfollowers, ad profiles, watch habits. Runs fully in the browser.
Try it free →
B2B SaaS
SB
ShieldBase
EU compliance software built around NIS2, with DORA and ISO 27001 expansion planned. Native to the European regulatory landscape.
Visit ShieldBase →
Android app
WJ
Weather Joe
A smart weather app for Android with AI-powered features — conversational forecasts, contextual alerts, and insights that go beyond standard weather data.
Coming soon
Services
From rough idea
Build sprint
Agent systems
Product engineering
From rough idea
to usable software.
ZacLabs is best suited for founders and lean teams who need a working product slice, a sharper AI-assisted build process, or a focused internal tool without hiring a full agency.
AI-assisted MVP development
Turn a scoped product idea into a working demo, prototype, or first sellable version with clear acceptance checks and delivery milestones.
Workflow design for teams
Set up practical agent roles, prompts, review loops, and documentation habits so AI-assisted work becomes repeatable instead of improvised.
SaaS, desktop, and web tools
Design and build focused software surfaces for creator workflows, compliance operations, data analysis, and internal business processes.
How I work
The workflow
The workflow
is the advantage.
A strong agentic process is a tight operating system for deciding what to build, giving agents bounded jobs, verifying their output, and turning useful work into shipped product.
Clarity first
Start with the business outcome
Define what must be true by session end: a demo, a deployed slice, a validated workflow, or a surface ready for users.
Bounded agents
Specialists, not chaos
Assign agents narrow roles: research, code exploration, implementation, tests, review, documentation. Each with a clear success check.
Verification
Make output prove itself
Every meaningful change faces a test, typecheck, browser smoke pass, or review checklist before it becomes part of the product.
Reusable systems
Keep it understandable
Prompts, decisions, docs, and code structure should make the next session faster — not more mysterious.
About
One builder.
One builder.
Real products.
I'm Željko Henezi, and ZacLabs is my one-person software studio based in Croatia. The portfolio spans creator tools, browser-based data analysis, and European compliance software — designed, built, and shipped by the same person from first commit to first customer.
The common thread is focused software that reaches users quickly. Agentic development makes that faster, but the standard stays the same: the product must be clear, maintainable, and genuinely useful.
For Croatian companies, European teams, and global founders, I offer a direct path from idea to shipped software — without agency overhead or vague AI consulting.
Work together →HRBased in Croatia
EUCompliance context
B2B+B2CProduct range
AIAgentic workflows
Connect
Follow
Follow
the build.
Product notes, agentic development experiments, founder lessons, and behind-the-scenes shipping updates across platforms. For project inquiries, message ZacLabs on X.