Online tools · No install
Online tools
Each tool is its own static page that loads dependencies only when needed, and collects no visitor data.
Online Mermaid Editor
Render flowcharts, sequence diagrams, Gantt charts and eight more in the browser, export SVG / PNG, with an English syntax cheatsheet.
Planned: a regex tester, JSON / YAML converter, QR-code generator and CRON explainer — links land once they are built.