Tidecharts is a live editor for mermaid.js diagrams which sets itself aside from others for being completely private - only runs in your browser, very fast and feature rich! Best of all is, it's free!
Looking beyond Tidecharts for diagramming or docs? Try Eraser for AI-assisted technical design, or go multimodal with AFFiNE combining docs, whiteboards, and databases. Prefer minimal? asciibar and Sketch2scheme keep visuals lightweight. Need deep writing flows? Obsidian ties notes to your diagrams.
