Free Class Diagram Templates

Design and document your software with Creately's free UML class diagram templates. Start from ready-made layouts for object-oriented systems, databases, and applications, then add classes, attributes, methods, and relationships in the online editor. Export your class diagram to PDF, PNG, JPEG, or SVG when you're done.
Templates

How to Use the Class Diagram Templates in Creately

  • Choose a template that suits your needs

    Pick a class diagram template that fits your system, such as an online store, a library system, or a banking app. Click 'Edit This Template' to open it and start modeling your classes.

  • Sign in or create a free Creately account

    Create a free account or sign in to open the template in the editor. This lets you save your class diagram, return to it later, and keep every change synced to your workspace.

  • Open the template and customize it

    Replace the placeholder content with your own classes and show how they relate to each other.

  • Collaborate with your team

    Give others view or edit access, gather inline comments, and resolve them without leaving the canvas. This works well for developers and architects reviewing a design together.

  • Export, share, or present

    Export your class diagram as PDF, PNG, JPEG, or SVG, present it live, or embed or link it in your design documents and technical specifications.