Try it now — free, and it never leaves your browser
Paste a CREATE TABLE script below (PostgreSQL or MySQL). Nothing you paste is
sent anywhere. The diagram is drawn on your screen only.
Draw a diagram to see its tables here. Click a table to highlight it, and add notes for the person you are handing this to.
Already paid? Unlock the handoff package
Retrieve your key on the return page Stripe opens after payment. Paste it below to turn on the HTML diagram with editable notes, the printable table views, and a CSV list of every table and column.
What you get for $199
- The free diagram tool, for as long as this page is up. Anyone on your team can use it.
- The paid button on this page, after a key is accepted: an HTML diagram with the notes you typed, printable table views, and a CSV list of tables and columns.
Download a synthetic worked example (.zip)
The example contains made-up SQL only: its paid-format HTML handoff, schema dictionary CSV, source SQL and a manifest. The CSV describes tables and columns, not customer, order or destination-import data. SQL is parsed locally in your browser; SchemaHand does not connect to a database.
CSV safety limit: if a cell starts with a spreadsheet formula or control character, the CSV is withheld. The HTML keeps your schema unchanged. Notes edited in the saved HTML do not update the separate CSV.
Buy — $199 for 12 months$199 for 12 months. One payment. Refunds are not offered. The free diagram on this page is the way to look first.
Buy the paid key
$199 for 12 months · once, not a feed
Buy — $199 for 12 months$199 for 12 months. One payment. Refunds are not offered. The free diagram on this page is the way to look first.