Class Diagram — Free Online Class Diagram Maker | Web4Strategy

Build a UML class diagram from text. Describe classes, attributes, methods, and links, then export a clean visual for design reviews or documentation.

About this resource

Sketch object-oriented classes, fields, methods, and relationships in the browser. This Web4Strategy utility is part of the Developer Utilities catalog. Review the page instructions before entering data, and keep passwords, access tokens, private keys, and other secrets out of browser tools unless the page explicitly documents a secure purpose and processing boundary.

About Web4Strategy

Web4Strategy publishes free browser-based web utilities, reusable React interface templates, open agent skills, prompts, product specifications, and structured public directories. Most browser tools run locally without an account. Machine clients can use stable canonical URLs, the XML sitemap, llms.txt, Markdown content negotiation, public JSON endpoints, and the OpenAPI document. Web4Strategy’s public identity is a product and resource library for developers, designers, builders, and product teams.