Hi, I'm Kyriewen
I build small but delightful tools — Chrome extensions, web apps, and developer utilities.
Building useful little products that solve real problems — 100% local, privacy-first, zero tracking.
My Products
Privacy-first tools, crafted with care.
A Chrome extension that scans the current tab, previews all images and lets you batch download them — entirely local, no tracking.
Generate customizable QR codes from any URL, text or Wi-Fi credentials. Works offline, with logo embedding and batch export.
Aggregates RSS feeds, YouTube channels and arXiv papers into 6 specialized categories (AI / Frontend / Backend / Cloud Native / Blockchain / Others) with hot-score ranking.
A Next.js web suite bundling JSON formatter, Base64 / URL codecs, regex tester, UUID generator and timestamp converter. Zero-install, works in any browser.
The premium suite with Gemini-powered code assistance, JSON tools and time conversion. Built in Google AI Studio.
Latest Writing
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