// Michael Lechner
Professional tools for developers, sysadmins and power users — built with Go, Svelte/React, TypeScript, C++, PHP and deep Unix & security expertise. Object-oriented, clean, privacy-first.
// Software
Desktop apps, MCP servers and everyday tools — self-hosted, no cloud lock-in, built with Go, Rust and TypeScript. Most of our products are available as open source, too.
Script-driven image processing — 35+ native-speed operations, a simple chainable script API, vector canvas, mesh-warping for creative distortions, and a visual desktop playground for live tweaking.
// Misc
I have kids — so Diablo II Resurrected time is scarce. To avoid wasting those precious 20 minutes on Runeword lookups: a quick cheat sheet. No apologies.
A hands-on introduction to the Model Context Protocol — from the basics to agentic servers and sampling.
Decode JWT tokens, inspect claims and verify HMAC-SHA256 signatures entirely in the browser. No server, no tracking.
Turn time series into isometric 3D terrain — a dependency-free TypeScript library that renders interactive SVG.
Time-series charts as SVG — the same library in the browser and on the server, in TypeScript and Go. That both really draw the same chart is checked on every test run, not promised in a README.
Hand-drawn SVG — and a way to make a finished diagram look that way afterwards. Mermaid, D3 or a chart goes in, a sketch comes out; no DOM, no canvas, so it runs on the server too.
Create a free account to access all tools and get notified about new releases. No credit card, no subscription.
