A diagram you can navigate
Pick the table you care about and the picture grows outward from it, as far as you want to look.
Pick one table in your SQL Server database, watch the diagram grow outward from it, make the changes you need, and get a migration script ready to run.
No credit card to start. Sign in with your email — no password to choose.
Four hundred tables drawn at once is a wall, not a diagram.
Most tools draw every table they find. WoodFireERD starts from the one you care about and shows only what connects to it, one hop at a time, as far out as you choose to look.
Then you make the change right there, and take the migration script with you.
Pick the table you care about and the picture grows outward from it, as far as you want to look.
One, many, and optional all look different, because the difference is the thing you came to find out. Hover any line to see exactly how two tables join.
Add columns, keys, indexes and triggers. Drag from one column to another to create a relationship. Everything you change is collected as you go.
Correctly ordered and ready to run whenever it suits you. No hand-sorting statements, no guessing what has to happen first.
Before you run anything, you are told plainly what a change would destroy — and deleting a table shows everything that would go with it.
Refresh to pick up changes colleagues have already made. Your own edits are kept, and their work never turns up as a drop in your migration.
Point it at your database, or open a project you saved earlier.
Follow the relationships that matter and ignore the rest.
Change what you need, and see it on the diagram as you go.
Take the script and run it when it suits you.
Read a live database the internet can reach — Azure SQL is the usual case — or open a DACPAC or a project you saved.
The same designer as a desktop application, for databases behind a company firewall or schemas you would rather not send through anyone's server.
Start free on a small schema, and upgrade when you need bigger ones and migration scripts.
By creating an account you agree to our Terms and Privacy Policy.