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 →Build smarter.
Ship sooner.
Agentic MVP development and focused product engineering by Željko Henezi · ZacLabs · Croatia.
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.
Windows utility suite
BD
BatchDrop
Twelve focused Windows utilities for local file processing — drag, drop, done.
- SuiteThe complete BatchDrop hub with all Windows file tools in one place.
- AudioConvert audio between MP3, WAV, and FLAC, or extract audio from video files offline.
- HEICConvert iPhone HEIC photos to JPG, PNG, or WebP entirely offline.
- ResizeResize images in bulk using social media presets, percentage, or longest-edge mode.
- WatermarkAdd text or logo watermarks to batches of photos with full position and opacity control.
- VideoCompress video files locally before uploading or sharing.
- ImageBatch compress and resize images without a web upload queue.
- RenameBulk rename hundreds of files with live preview and conflict detection.
- MetaStrip EXIF, GPS, and AI-generation metadata before sharing photos.
- WebPConvert WebP files to JPG or PNG for broad app and tool compatibility.
- MOVConvert MOV and camera videos to universal MP4 files locally.
- PDFExport PDF pages as JPG images without any cloud converter.
- Photo SortOrganize photo libraries by EXIF date, events, and GPS into folder trees.
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 →
About
One builder.
One builder.
Real products.
I'm Željko Henezi — IT leader and software builder based in Croatia. By day I run development teams at Plavi tim, driving digital transformation and intelligent automation in the Oil & Energy sector. Before that, I spent nearly a decade at INA shipping ERP implementations, RPA pipelines, and integrated enterprise systems at group level.
ZacLabs is what I build outside of that — a personal project space for focused Windows utilities, AI-assisted workflows, and compliance tools. The same instinct that drives my day job applies here: software should be clear, fast to ship, and genuinely useful.
I hold a degree in Informatics from the University of Zagreb and have led teams of 5–10 across infrastructure, application development, and IS security.
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15+Years in IT leadership
EUEnergy & compliance roots
AIAgentic workflows
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Product updates, launch notes, and behind-the-scenes shipping across platforms. Follow along for early access and new releases.