Relational · NoSQL · Relational algebra
One suite of tools to design, model and query databases
From ER modelling to relational schemas, NoSQL document design and relational algebra. Web tools developed by the MINDS group at Politecnico di Torino for students, teachers and professionals.
No installation. Responsive and cross-platform.
The suite
One suite, every kind of database
Pick the tool that fits your project: from full relational design to quick sketches and document databases.
Relational · Full
designER
The complete tool for relational design: draw the ER model with automatic error detection, restructure it and generate SQL code.
Relational · Free
designER basic
The free version to draw ER models with no limits and no error checking.
NoSQL · Documents
noER
Design NoSQL document databases with a visual model, from the conceptual schema to the collections.
Relational algebra
designQT basic
Draw relational algebra expressions with a graphical editor (basic version).
How it works
From the first idea to the final query
Whichever tool you pick, the work follows the same path, so each decision flows into the next.
1
Sketch and model
Draw your ER or NoSQL model. Checks catch mistakes early, or sketch freely when you only need an idea.
2
Translate and refine
Restructure the model and turn it into a logical schema, step by step.
3
Generate and query
Generate SQL code for your DBMS and write queries visually with relational algebra.
Why DesignerDB
Built to teach, built to work
One suite for the whole database journey: from the first sketch to the finished model and its queries. Developed by the MINDS group at Politecnico di Torino, born in university classrooms and shaped by real projects.
Share
Save and load your models, or export project deliverables to hand in or share with your team.
Tutoring
Support at every stage of the project, with checks that explain what is wrong and why.
User-friendly
A responsive, cross-platform interface for beginners and experienced designers alike.
Pick a tool and get started
Design, model or query your databases right in the browser, with no installation.