YourERD

Spec sheet

Purpose

YourERD is an online tool for drawing entity-relationship diagrams in a browser.Read 9 Oct 2026 · yourerd.com

Intended users

The maker says the tool was designed in part for data modelling practices that use Barker notation and technical and human-readable names side by side.Read 9 Oct 2026 · yourerd.com

Integrations

YourERD provides an MCP server that connects to Claude Code so users can create diagrams from natural-language descriptions.Read 9 Oct 2026 · yourerd.com

Security

The privacy policy says passwords use scrypt hashes, MCP and share-link tokens use SHA-256 hashes, and traffic is encrypted with HTTPS.Read 9 Oct 2026 · yourerd.com

Privacy

The privacy policy says diagrams are not sent to the server when the service is used without signing in.Read 9 Oct 2026 · yourerd.com

Support

Support is by email, and the contact page says there is no phone line or live chat.Read 9 Oct 2026 · yourerd.com

Headquarters

Republic of KoreaRead 28 Sep 2026 · yourerd.com

Accounts and storage

Drawing and exporting do not require an account; signing in enables cloud storage and share links.Read 9 Oct 2026 · yourerd.com

Automatic foreign keys

Creating a relationship automatically adds a foreign key column derived from the parent entity’s primary key.Read 9 Oct 2026 · yourerd.com

Database support

The FAQ says MySQL 8 is the available DDL target.Read 9 Oct 2026 · yourerd.com

Exports

Diagrams can be exported as MySQL 8 DDL, PNG images, or JSON files.Read 9 Oct 2026 · yourerd.com

Naming

Tables and columns can have physical and logical names, and logical names can appear as comments in generated DDL.Read 9 Oct 2026 · yourerd.com

Notation

The editor supports Barker notation, including identifying, non-identifying, and optional relationships, with one-to-one and one-to-many cardinalities.Read 9 Oct 2026 · yourerd.com

Sharing limit

People with a share link can watch diagram updates in real time, but only the owner can edit.Read 9 Oct 2026 · yourerd.com

Plans and prices

Every YourERD plan and price →

Where Specifiction places it

• Database Design Tools#28 of 357.1