Free ER Diagram Template

Visualize your data structures and relationships with ease using the Free Mural ER Diagram Template. Perfect for database designers, system architects, and software developers, this template collection helps you define entities, attributes, and their relationships in a structured, interactive format—ideal for documentation, planning, or presentations.

Powerful Features of Mural ER Diagram Templates

• Entity-Relationship Format: Quickly map out entities, attributes, and relational flows

• Editable Elements: Add custom labels, keys, and connectors to fit your system schema

• Multiple Diagram Styles: Choose from hierarchical, normalized, and crow’s foot variations

• Real-Time Collaboration: Build, review, and update database structures with your team live

• Clean Visual Design: Use shapes, lines, and colors to differentiate tables and relationships

Template Variations You’ll Get

1. Traditional ER Diagram Layout
Displays entities and their relationships with clear connectors. Ideal for mapping ecommerce, CRM, or business processes.

2. Simplified Block Diagram
Use this for basic or small-scale data structure representation. Great for beginners or fast brainstorming.

3. Crow’s Foot Notation Diagram
Includes standard ERD symbols for one-to-many, many-to-many relationships. Perfect for advanced database design or system documentation.

4. Color-Coded Relational Model
Segmented nodes with colored shapes to show different data types or layers. Ideal for presenting to stakeholders or during technical reviews.

Best Suited For

• Database Developers: Design relational schemas for apps, websites, or tools

• Software Architects: Plan backend systems and data flows

• Business Analysts: Document business processes and information systems

• Students & Educators: Learn and teach database concepts visually

• IT & Data Teams: Collaborate on data modeling and structure refinement

Platform Compatibility & Export Options

• Platform: Mural (Cloud-based collaboration tool)

• Editing Mode: Online, real-time co-editing

• Diagram Styles: Traditional, simplified, crow’s foot, relational layout

• Export Formats: PNG, PDF, or shareable Mural link