Free Sequence Diagram Templates

Show how objects and systems interact step by step with Creately's free UML sequence diagram templates. Start from ready-made layouts for login flows, online orders, and API calls, then add lifelines, messages, and conditions in the online editor. Export your sequence diagram to PDF, PNG, JPEG, or SVG when you're done.
Templates

How to Use the Sequence Diagram Templates in Creately

  • Choose a template that suits your needs

    Pick a sequence diagram template that fits your scenario, such as a login process, an online order, an ATM withdrawal, or an API request. Click 'Edit This Template' to open it and start mapping the interaction.

  • 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 sequence 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 participants and show the messages they exchange, in order.

  • 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, analysts, and architects reviewing a design together.

  • Export, share, or present

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