Created with passion
Open-source Kotlin libraries and developer tools for the JVM
Hi, I'm Alexander. I build open-source Kotlin libraries and developer tools for the JVM — from content engines to self-hosted media managers. Whether you're looking for a library to power your next project, exploring Kotlin on the server, or just curious about what's possible, you'll find it here.
fragments4k
v0.6.6A framework-agnostic Markdown-based content engine for Kotlin — drop in .md files, get routing, RSS, sitemaps, full-text search, and pagination out of the box.
AI Usage Tracker
v2.4.2A Windows dashboard and tray utility to monitor AI API usage, costs, and quotas across Anthropic, GitHub Copilot, OpenRouter, DeepSeek, Mistral, and more — all from one compact window.
Outerstellar Platform
v3.6.21A full-stack Kotlin platform template — multi-module architecture with observability, security, type-safe configuration, a JTE web layer, and a Swing desktop client.
Maven Cleaner
v0.6.0Safely clean your local Maven repository and Gradle caches — scans for old versions, verifies against Maven Central, protects local-only builds, and reclaims disk space.
Needlecast
v0.9.2-beta.2A Swing-based desktop project launcher for developers — organizes projects into color-coded groups, embeds a terminal, editor, and file explorer, and auto-detects build tools and AI CLI tools.
sparkle4j
v0.5.6An in-app update library for Java and Kotlin desktop applications — background update checking, Ed25519 signature verification, native Swing update dialog, and cross-platform silent installation.
