toolkitlab.dev
A growing lab of focused tools for system design and operational prototyping.
Build sharper internal tools
Toolkit Lab turns narrow workflows into usable products.
Start with Schema Studio for ER-driven database exploration, sample data editing, and business-flow simulation. Expand from there as the rest of the toolkit comes online.
- Local-first
- Tools keep momentum high with browser-side persistence and fast iteration loops.
- System design
- Model schemas, edge cases, and decision paths before committing to implementation.
- Purpose-built
- Each tool is narrow by design so complex work stays understandable and fast.
Tool index
One domain, multiple focused workflows.
Live now
Schema Studio
Design, inspect, and simulate relational systems from Mermaid ER diagrams with local-first project storage.
Open toolIn progress
Simulation Kits
Focused utilities for prototyping operational workflows, decision trees, and repeatable test scenarios.
View roadmapPlanned
Data Playground
A lightweight environment for generating structured fixtures and validating schema assumptions before implementation.
View roadmapRoadmap
Toolkit Lab is being built as a collection, not a monolith.
Schema Studio stays as the first production-ready utility. The rest of the site is positioned to grow into adjacent tools for simulation, data fixtures, and workflow testing.
That gives `toolkitlab.dev` a clear top-level identity while keeping each tool accessible by its own route, metadata, and product language.