Design a new chat service schema
Kickstart a clean data model for users, chats, participants, and messages. Ensure correct relationships for threads, statuses, and delivery events.
AI Chart Template
Messaging App Users, Chats, and Messages ERD Template
Visualizes users, chats, participants, and messages with threads, statuses, roles, and read receipts for a production-ready messaging model.
Chart preview
Messaging App Users, Chats, and Messages ERD Template
Visualizes users, chats, participants, and messages with threads, statuses, roles, and read receipts for a production-ready messaging model.
fontSize12
directionTB
enableZoomtrue
Template
What This Template Offers
A ready-to-use ERD that models core messaging flows so you can design, review, and implement your schema with confidence.
- Direct and group chats with roles
- Threaded replies and read receipts
- Clear PK/FK constraints and cardinalities
- Scalable JSONB metadata fields
- Audit‑ready timestamps and status tracking
Use cases
Perfect Use Cases
Migrate a legacy messaging database
Map old tables to a modern ERD structure with composite keys, foreign keys, and metadata fields to support new features.
Align product and engineering on chat features
Use a single visual to agree on requirements—roles, notifications, last read markers—before sprint planning.
Security and compliance reviews
Show data lineage and access points (e.g., who created chats, message edits) to support audits and privacy assessments.
Customize
How to Customize
Add or rename entities
Include extra tables like Reactions or Attachments, or adjust attribute names to match your naming standards.
Map relationships and constraints
Set PKs, FKs, composite keys (chat_id + user_id), and define cardinalities for users, chats, and messages.
Style and export
Apply your brand colors, tidy labels, and export a share‑ready diagram for docs, tickets, or handoff.
Key Benefits
- Proven structure for core messaging flows
- Fewer schema mistakes with clear constraints
- Faster collaboration across teams and stakeholders
- Scales from MVP to production with minimal refactors
Pro Tips
- Index sent_at, last_seen, and last_read_message_id to speed reads at scale.
- Use JSONB metadata sparingly and promote frequently‑queried fields to columns.
- Model threads with a self‑reference and keep message edits auditable via edited and edited_at.
Start now
Create Your Own erd—fast and flawless
Turn your messaging data model into a clear ERD in minutes. Edit live, share instantly, and export for engineering handoff.
or upload your data file
- Free to start
- No sign-up required
- AI-powered
Related Tools
Create similar charts with these tools
AI ERD Diagram Generatorerd
Build accurate ER diagrams fast with our AI entity relationship diagram generator. Free, online, customizable, and export-ready (PNG/SVG). Create, edit, and share ERDs in minutes—no design skills needed.
AI ERD MakererdCreate accurate schemas fast with our ERD maker for database design. Auto-build entities and relationships, customize layout and labels, then export or share—free online.
ERD for Postgres & MySQLerdDesign clear ER diagrams for PostgreSQL and MySQL online. AI maps PK/FK, cardinality, and layout. Free to start, customize, and export or embed in seconds.
AI ERD Diagram GeneratorerdDesign clean ER diagrams fast. Our database schema diagram tool uses AI to map entities, PK/FK keys, and cardinality. Free to start, customize layout, and export.
AI ER Diagram CreatorerdCreate accurate ER diagrams fast with AI. The Database ER Diagram Creator builds tables, keys, and relationships. Free, customizable, and easy to export or embed.
Design SaaS ER DiagramserdCreate a clear ER diagram for your SaaS application in minutes. AI-powered, free, and customizable with PK/FK, cardinalities, and layout control. Export or embed with ease.
Templates
Start with professionally designed templates
E-commerce Order Management ERD Templateerd
Visualize your E-commerce Order Management ER Diagram fast. See entities, keys, and flows from cart to delivery—share, embed, and refine in minutes.
Online Store Products & Inventory ERD TemplateerdDesign a clean Online Store Products and Inventory ERD fast. Map products, stock, orders, and suppliers to prevent stockouts and speed decisions.
Shopping Cart & Checkout ERD Template for E‑commerceerdBuild a clear Shopping Cart and Checkout Entity Relationship Diagram in minutes—align teams, reduce defects, and ship a scalable data model.
SaaS User-Team-Subscription erd Template for Clean Data ModelserdVisualize a User, Team, and Subscription SaaS ER Diagram in minutes. Map ownership, memberships, and billing with a clean, customizable model.
Multi-Tenant SaaS Database ERD TemplateerdDesign a secure, scalable SaaS schema in minutes. Map tenants, users, roles, and billing with this Multi-Tenant SaaS Database ERD Template.
CRM Contacts–Leads–Deals ERD: a clear, scalable modelerdDesign a clean CRM Contacts, Leads, and Deals ER Diagram in minutes. Clarify relationships, prevent duplicates, and speed up implementation.